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Interactive Graphics Intersection Design System

1. MH GIDS Outer Edge Curb Return Segment iL IGIDS Outer Edge Curb Return Segment IGIDS OUTER EDGE CURB RETURN SEGMENT IGIDS automatically sorts an alternative s list of legs a leg s list of inbound lanes a leg s list of outbound lanes and each list of segments This automatic sorting allows the user to enter elements in any order An alternative is considered completed when all of its legs are completed A leg is considered completed when all of its centerlines inbound lanes outbound lanes inner edge curb returns and outer edge curb returns are completed A lane is considered completed when all of its inner edges outer edges stop lines inner edge stripings outer edge stripings and stop line stripings are completed A list of segments is considered completed when 1 no segments are entered for optional elements like curb returns and striping 2 one segment is entered or 3 two or more segments are entered and there is no geometric gap between adjacent segments IGIDS maintains the design as descriptive data stored in the host computer s memory This stored data represent a complete record of the intersection design Included are the attributes of each IGIDS object and how IGIDS objects are related data that have been calculated during the design process and data that have been entered manually by the user The data may be stored as a disk file and late
2. p o i i a eae El ne en Ze Rh m l N 0187 3 ye pa en z i I es rs 4 ns E Bee em es cal Sa Pretimed Traffic Signal and HCM Chapter 9 Analysis Plot Save the intersection to a database file for later use L 1 From the IGIDS Side Bar Menu select SAVE TO gt Data Base L 2 In the IGIDS Database File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_pts and finally press the OK push button IGIDS will save the intersection data to the file ex_pts dbs Exit IGIDS M 1 From the IGIDS Side Bar Menu select END IGIDS Exit MicroStation 95 N 1 Choose MicroStation 95 File gt Exit 58 NEMA TRAFFIC SIGNAL Objective Time aNEMA traffic signal controller Activity Place a single ring NEMA traffic signal controller place traffic signal heads define traffic signal phasing for four phases enter traffic signal timing and options and specify traffic turn movement percentages and traffic volumes Background An actuated traffic signal is used at many locations for intersection control The phasing and timing of this traffic signal is critical to the operation of the intersection The traffic signal heads the traffic signal phasing the traffic signal timing and options and the traffic turn movement counts or traffic turn movement percentages and traffic volumes must be defined by the user A Start M
3. In response to the prompt DataPt Reset id sig hd or chan sym to add reenter in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens signal face on the curb lane of the leg nearest the right of the screen When DataPt Reset accept amp id item to add remove reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens signal face on the curb lane of the leg nearest the left of the screen The color of the three lens signal face on the curb lane of the leg nearest the right of the screen will be changed to green In response to the prompt DataPt Reset accept amp id item to add remove reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the lane The color of the three lens signal face on the curb lane of the leg nearest the left of the screen will be changed to green When DataPt Reset accept amp id item to add remove reidentify appears in the MicroStation 95 Command Window Prompt Message field enter a Reset The color of the three lens signal face on the curb lane of the leg nearest the 54 right of the screen and the three lens signal face on the curb lane of the leg nearest the left of the screen will be changed to white Define the pretimed traffic signal controller timing Gl G 2 G3 G 4 G 5 From the IGIDS Si
4. 53 F 4 F 5 F 6 0 7 F 8 F 9 F 10 F 11 point on the three lens signal face on the curb lane of the leg nearest the bottom of the screen In response to the prompt DataPt Reset accept amp id item to add remove reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens signal face on the curb lane of the leg nearest the top of the screen The color of the three lens signal face on the curb lane of the leg nearest the bottom of the screen will be changed to green When DataPt Reset accept amp id item to add remove reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the lane The color of the three lens signal face on the curb lane of the leg nearest the top of the screen will be changed to green In response to the prompt DataPt Reset id sig hd or chan sym to add reenter in the MicroStation 95 Command Window Prompt Message field enter a Reset The color of the three lens signal face on the curb lane of the leg nearest the bottom of the screen and the three lens signal face on the curb lane of the leg nearest the top of the screen will be changed to white When Key in phase number 1 appears in the MicroStation 95 Command Window Prompt Message field enter 2 plus a carriage return or enter key in the MicroStation 95 Command Window Key in field
5. A 7 From the MicroStation 95 Manager dialog box under Directories make sure your c igids directory is selected then under Files select ex_pts dgn and finally press the OK push button 51 A 8 If a MicroStation 95 Restricted Use dialog box appears for Academic Edition drag the MicroStation 95 Restricted Use dialog box off the screen Start IGIDS B 1 B 2 In the MicroStation 95 Command Window Key in field enter mdl load igids Press the OK push button when the IGIDS Alert dialog box appears Drag the IGIDS Side Bar Menu to the upper left corner of the MicroStation window Load the saved IGIDS database ex_4x4 dbs C 1 C 2 C3 From the IGIDS Side Bar Menu select LOADFROM gt DATABASE In the Intersection database filename dialog box under Directories make sure your e igids directory is selected then under Files choose ex_4x4 dbs and finally press the OK push button In Window 1 press the Fit View icon The intersection should be visible In Window 1 press the Zoom In icon Repeat this procedure three times move the cursor in Window 1 so that the center of the zoom in rectangle is near the center of the intersection and press the Data button Place a pretimed signal controller with two phases D 1 D 2 D 3 D4 From the IGIDS Side Bar Menu select Tools gt Traffic gt Controller gt Pretimed When DataPt locate Pretimed controller is sh
6. D 11 D 12 definition of the Command button is not important because MicroStation 95 interprets any button on a dialog box to be a Command button If the buttons are not assigned the way that you want them select a button from the list and in the Button Definition Area press the mouse button or combination of Alt keys and mouse buttons that you want When completed press the OK push button The Applications menu contains menus added by MicroStation 95 MDL applications and MBE applications On some systems Applications may not be displayed Take this opportunity to look at the menus under Applications The Window menu contains the MicroStation 95 specific items Open Close and several others Take this opportunity to look at the menus under Window MicroStation 95 can have up to eight windows or views open simultaneously Each window or view has its own size height and width location within the MicroStation 95 window levels to display or hide Settings gt Levels gt Display view attributes Settings gt View Attributes panning zooming rotation and orientation for 3D files top bottom left orthogonal etc Choose Window gt Open Close if 1 for window view 1 does not have a check mark to its left then select 1 window view 1 will be opened and if any of 2 through 8 has a check mark to its left then select each one the window view will be closed The Help menu contains the MicroStation 95 specific items to
7. Leg Outbound Lane Inner Edge Seg Text Intersection Alternative Leg Outbound Lane Outer Edge Seg Text Intersection Alternative Leg Outbound Lane Stop Line Seg Text Intersection Alternative Leg Outbound Lane Inner Edge Striping Seg Text Intersection Alternative Leg Outbound Lane Outer Edge Striping Seg Text Intersection Alternative Leg Outbound Lane Stop Line Striping Seg Text Intersection Alternative Leg Outbound Lane Other Striping Seg Text IGIDS Object Relationships Stones 4x4 Stondord 4x4 IGIDS Alternative IGIDS Alternative Stondord 4X4 Stondord 4x4 IGIDS Text on Alternative IGIDS Text on Alternative Standard 4X4 Standard 4X4 IGIDS Leg IGIDS Leg p u m s oe oa IGIDS Leo IGIDS Leg enlarged IGIDS Leg Centerline IGIDS Leg Centerline I 0 a a se ee rm ee a SSS m N me IGIDS Inbound Lane PEE S i l p ee a ee j f i i i i f f H l f f i f f aed eae J ne ee ed Hee Be i i i IGIDS Inbound Lane IGIDS Inner Edge Segment IGIDS Inner Edge Segment eur a u au a aus del K i TR fo 7 De
8. Set the viewing of the leg centerline graphics off D 1 From the IGIDS Side Bar Menu select VIEW gt Leg Cntrline gt CURRENT OFF Add the centerline striping E 1 From the IGIDS Side Bar Menu select TOOLS gt Traffic gt Striping E 2 In the IGIDS Striping dialog box set Type of Striping to Double Solid Line set Width in mm to 6 150 set Color to Yellow set Reference Object Type to IGIDS Edge set Mode to Place and press the Start push button Notice the striping displayed in the center of the dialog box is the correct type size and color Invalid combinations of type size and color are not allowed 80 E 3 E4 E 5 E 6 E 7 IGIDS Striping dialog box When DataPt identify IGIDS Edge appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the blue centerline of the leg nearest the bottom of the screen The centerline should be highlighted In response to the prompt DataPt Reset accept reidentify in the MicroStation 95 Command Window Prompt Message field enter a Data point anywhere in the window to accept the centerline of the leg nearest the bottom of the screen When Keyin DataPt Trim length 0 Start of stripe appears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field In response to the prompt Keyin DataPt Stripe length 243 84 in th
9. make sure your e igids directory is selected then under Files select ex_adleg dgn and finally press the OK push button A 8 If a MicroStation 95 Restricted Use dialog box appears for Academic Edition drag the MicroStation 95 Restricted Use dialog box off the screen 89 Start IGIDS B 1 B 2 In the MicroStation 95 Command Window Key in field enter mdl load igids Press the OK push button when the IGIDS Alert dialog box appears Drag the IGIDS Side Bar Menu to the upper left corner of the MicroStation window Load the saved IGIDS database ex_4x4 dbs CA CZ C2 From the IGIDS Side Bar Menu select LOADFROM gt DATABASE In the Intersection database filename dialog box under Directories make sure your c igids directory is selected then under Files choose ex_4x4 dbs and finally press the OK push button In Window 1 press the Fit View icon In Window 1 press the Zoom In icon move the cursor in Window 1 so that the center of the zoom in rectangle is near the center of the intersection and press the Data button Rotate the legs D 1 D 2 D 3 D 4 D 5 D 6 From the IGIDS Side Bar Menu select ROTATE gt Leg In response to the prompt Keyin rotation angle 1 0 in the MicroStation 95 Command Window Prompt Message field enter 15 plus a carriage return or enter key in the MicroStation 95 Command Window Key in field The leg nearest the top of
10. or chan sym to add reenter appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens with protected left signal face on the left turn lane of the leg nearest the right of the screen In response to the prompt DataPt Reset accept amp id item to add remove reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens with protected left signal face on the left turn lane of the leg nearest the left of the screen The color 64 G 17 G 18 G 19 G 20 G 21 G 22 G 23 G 24 of the three lens with protected left signal face on the left turn lane of the leg nearest the right of the screen will be changed to green When DataPt Reset accept amp id item to add remove reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the lane The color of the three lens with protected left signal face on the left turn lane of the leg nearest the left of the screen will be changed to green In response to the prompt DataPt Reset id sig hd or chan sym to add reenter in the MicroStation 95 Command Window Prompt Message field enter a Reset The color of the three lens with protected left signal face on the left turn lane of the leg nearest the right of the screen and the three lens with protected left signal face on the left turn lane of
11. u O P N Qs f PRETIMED EEE l SEEN Texas Model for Intersection Traffic Plot F Save the intersection to a database file for later use F 1 From the IGIDS Side Bar Menu select SAVE TO gt Data Base F 2 In the IGIDS Database File dialog box under Directories make sure your er ligids directory is selected then under Files enter ex_texas and finally press the OK push button IGIDS will save the intersection data to the file ex_texas dbs G Create Texas Model for Intersection Traffic input files G 1 From the IGIDS Side Bar Menu select SAVE TO gt Tx Mdl File 73 G 2 In the TEXAS Model GDV file dialog box under Directories make sure your c igids directory is selected then under Files enter ex_texas gdp and finally press the OK push button IGIDS will save the intersection data for the Texas Model Geometry and Driver Vehicle Data Preprocessor GDVDATA to the file ex_texas gdp G 3 In the TEXAS Model SIM file name dialog box under Directories make sure your e igids directory is selected then under Files enter ex_texas sp and finally press the OK push button IGIDS will save the intersection data for the Texas Model Simulation Data Preprocessor SIMDATA to the file ex_texas sp Exit IGIDS H 1 From the IGIDS Side Bar Menu select END IGIDS Exit MicroStation 95 I 1 Choose MicroStation 95 File gt Exit 74 SIGNAL
12. 95 window choose Settings gt Snaps If Keypoint does not have a check mark to its left then select Keypoint In the Inform Message field TP KeyPT should be displayed From the Place Line dialog box select Length to be active enter a value of 150 meters select Angle to be active and enter a value of 30 degrees Move the cursor in Window 1 near the top right end of the previously placed line and press the Tentative button In the Status Message field 5116 0660 5116 0660 should be displayed a larger cursor should be positioned on the top right end of the previously placed line and the previously placed line should be highlighted Now press the Data button to accept this tentative point In Window 1 press the Fit View icon both lines should be visible Close the Linear Elements palette by selecting the X in the upper right corner Place a 500 meter radius fillet with truncate between the two lines From the MicroStation 95 Main Tool menu select the Modify palette bottom row right icon and drag it into the MicroStation 95 window From the Modify palette choose the Construct Circular Fillet icon next to the last icon From the Construct Circular Fillet dialog box enter a Radius of 500 meters and set the Truncate option to Both Move the cursor over the Ist line and press the Data button MicroStation 95 will highlight the first line then move the cursor over the 2nd line and press the Data button MicroStation 95 wil
13. File gt Preview From the Plot Preview dialog box choose Setup gt Page In the Print Setup dialog box in the Printer group choose a Name in the Orientation group choose Landscape and press the OK push button From the Plot Preview dialog box choose File gt Plot Get your plot from the printer and check your plot Close the Plot dialog box by selecting the X in the upper right corner 86 Striping and Traffic Inventory Report Plot M Save the intersection to a database file for later use M 1 M 2 From the IGIDS Side Bar Menu select SAVE TO gt Data Base In the IGIDS Database File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_strp and finally press the OK push button IGIDS will save the intersection data to the file ex_strp dbs N Exit IGIDS N 1 From the IGIDS Side Bar Menu select END IGIDS 87 O Exit MicroStation 95 O 1 Choose MicroStation 95 File gt Exit 88 ADD LEG Objective Add a leg centerline add two inbound and two outbound lanes and add a curb lane curb return Activity Load the Simple Example rotate two legs to make room for a another leg attach the Introduction to MicroStation 95 file as a reference file add a leg centerline by identifying the graphics in the Introduction to MicroStation 95 file add two inbound and two outbound lanes by key in and add a curb lane curb
14. Menu select SAVE TO gt SOAP 77 G 2 G 3 G 4 G 5 In the IGIDS SOAP84 file name dialog box under Directories make sure your e igids directory is selected then under Files enter ex_soap dat and finally press the OK push button When Key in Reset All red time sec 0 00 reidentify is shown in the MicroStation 95 Command Window Prompt Message field enter 1 0 plus a carriage return in the MicroStation 95 Command Window Key in field IGIDS will save the intersection data for SOAP to the file ex_soap dat In the MicroStation 95 Command Window Key in field enter dr c igids ex_soap dat plus a carriage return or enter key The SOAP input file should be displayed in the c igids ex_soap dat dialog box Close the c igids ex_soap dat dialog box by pressing the x in the upper right corner of the dialog box c Nigids ex_soap dat dialog box Exit IGIDS H 1 From the IGIDS Side Bar Menu select END IGIDS Exit MicroStation 95 I 1 Choose MicroStation 95 File gt Exit 78 STRIPING AND TRAFFIC INVENTORY REPORT Objective Add striping and generate a traffic inventory report Activity Add centerline lane edge and stop line striping to the Pretimed Traffic Signal and HCM Chapter 9 Analysis Example and generate and review a traffic inventory report Background The placement of centerline lane edge stop line and other striping is an important function to deli
15. Movement Count dialog box for NB Leg 3 set U Turn to 0 Left Turn to 18 set Straight to 70 set Right Turn to 12 and set Total Volume to 750 vehicles per hour 15 Inthe Traffic Turn Movement Count dialog box for SB Leg 1 set U Turn to 0 Left Turn to 16 set Straight to 69 set Right Turn to 15 and set Total Volume to 770 vehicles per hour The OK push button will now be enabled 1 6 In the Traffic Turn Movement Count dialog box press the OK push button 67 ee 12 Traffic Turn Movement Count dialog box J Save the MicroStation 95 design file settings J 1 Choose MicroStation 95 File gt Save Settings K Plot the drawing K 1 Choose MicroStation 95 File gt Print Plot From the Plot dialog box choose File gt Preview From the Plot Preview dialog box choose Setup gt Page In the Print Setup dialog box in the Printer group choose a Name in the Orientation group choose Landscape and press the OK push button From the Plot Preview dialog box choose File gt Plot Get your plot from the printer and check your plot Close the Plot dialog box by selecting the X in the upper right corner 68 u ze ex LET ge Te De _ lo OQ i N oO BR 3 ee i og ee 009 ia a A GOO 009 l ae Slee 6 Aan iO R Pa F i Q JQ 8 be Z nn oes NEMA Traffic Signal Plot S
16. OPERATIONS ANALYSIS PACKAGE SOAP Objective Analyze the signal operations using the Signal Operations Analysis Package SOAP Activity Create a SOAP input file from the Pretimed Traffic Signal and HCM Chapter 9 Analysis example Background SOAP develops and assesses isolated intersection signal timing plans for pretimed signals Input data for SOAP includes a definition of the geometry intersection control traffic data and lane capacity The Highway Capacity Manual Special Report 209 Chapter 9 prepared by the Transportation Research Board defines procedures that may be used to find lane capacity for intersections with pretimed controllers To perform the HCM Chapter 9 analysis the traffic signal heads the traffic signal phasing the traffic signal timing and the traffic turn movement counts or traffic turn movement percentages and traffic volumes must be defined by the user IGIDS can create the input files necessary to run SOAP SOAP can then be run outside of IGIDS A Start MicroStation 95 and create a 2D design file ex_soap dgn using the seed file train2d dgn A l From the Windows NT Start Menu in the lower left corner of the screen choose Start gt Programs gt MicroStation95 gt MicroStation95 A 2 From the MicroStation 95 Manager dialog box choose Style gt Command Window A 3 From the MicroStation 95 Manager dialog box choose File gt New A 4 From the Create Design File dialog box choose Select w
17. Paced Printed and World Wide Web formats m Microsoft PowerPoint presentation ftp fftp ce utexas edufftp igids or ftp ce utexas edu igids documentation most but not all chapters dos ustn40 dos ustn50 dos ustn95 winnt ustn50 winnt ustn95 m McTrans in the future
18. Prompt Message field enter a 2 plus a carriage return or the enter key in the MicroStation 95 Command Window Key in field A pretimed signal controller box should appear centered near the center of the curb return arc Attach the reference file dtm dgn to the design file G 1 G 2 G 3 G 4 From the MicroStation 95 dialog box choose File gt Reference In the Reference Files Design Files 0 dialog box choose Tools gt Attach In the Attach Reference File dialog box under Directories make sure your erligids directory is selected then under Files select dtm dgn and finally press the OK push button In the new Attach Reference File dialog box set Logical Name to dtm set Description to pyramid set Attachment Mode to Coincident deselect Scale Line Styles and finally press the OK push button 46 G 5 In the Reference Files Design Files 0 dialog box press the X in the upper right corner to close the dialog box The top view of a green pyramid should appear with its center 25 meters 19 8 yards to the right and 25 meters 19 8 yards down from the center of the intersection The pyramid is made up of four equal triangles Each edge of the base of the pyramid is 200 meters 180 yards long The elevation of the center peak is 100 meters 90 yards and the elevation of the base edges is 80 meters 72 yards Any application may be used to generate the triangles for a surfac
19. Settings B l B 2 B 3 B 4 B 5 B 6 B 7 B 8 B 9 From the MicroStation 95 dialog box choose Settings gt Design File In the Design File Settings dialog box under Category choose Active Angle In the Modify Active Angle Parameters area in the Active Angle box enter 0 0 In the Design File Settings dialog box under Category choose Active Scale In the Modify Active Scale area press the 1 0 button and ensure that the lock to the right of the X Scale and Y Scale boxes is in the locked position press the lock if it is not in the locked position In the Design File Settings dialog box under Category choose Color In the Modify Color Settings area press the Element Highlight Color button and choose the color magenta In the Design File Settings dialog box under Category choose Coordinate Readout In the Modify Coordinate Readout Parameters area in the Coordinates group for Format select Working Units and for Accuracy select an appropriate number of decimals In the Design File Settings dialog box under Category choose Working Units In the Modify Working Unit Parameters area in the Units Name group in the Master Units box enter ft or FT for English units or enter m or M for metric units and in the Sub Units box enter an appropriate designation for subunits In the Resolution group in the lt master units gt Per lt sub units gt box enter the number of subu
20. The IGIDS object type Text is seen to have more than one possible type of parent When each Text is created it will be subclassified to be either Text on a Seg or Text on an Alternative This designation will remain unchanged for the life of the Text Both Lane and Seg are seen also to have subclassifications A Lane is either an Inbound Lane or an Outbound Lane A Seg is a Lane Inner Edge Seg Lane Outer Edge Seg Lane Stop Line Seg Lane Inner Edge Striping Seg Lane Outer Edge Striping Seg Lane Stop Line Striping Seg Lane Other Striping Seg Leg Centerline Seg Curb Return Inner Edge Seg or Curb Return Outer Edge Seg Note also that Segs may have either Lane or Leg parents Intersection Alternative Text Intersection Alternative Leg Centerline Seg Text Intersection Alternative Leg Inner Edge Curb Return Seg Text Intersection Alternative Leg Quter Edge Curb Return Seg Text Intersection Alternative Leg Inbound Lane Inner Edge Seg Text Intersection Alternative Leg Inbound Lane Quter Edge Seg Text Intersection Alternative Leg Inbound Lane Stop Line Seg Text Intersection Alternative Leg Inbound Lane Inner Edge Striping Seg Text Intersection Alternative Leg Inbound Lane Outer Edge Striping Seg Text Intersection Alternative Leg Inbound Lane Stop Line Striping Seg Text Intersection Alternative Leg Inbound Lane Other Striping Seg Text Intersection Alternative
21. assist the user in using and finding online information about MicroStation 95 Take this opportunity to look at the menus under Help The Key in Browser opens the MicroStation 95 Key in dialog box discussed in section D 7 a Each MicroStation 95 window or view has a bar across the top border a slider along the right border and a bar and slider along the bottom border Take this opportunity to look at the borders for Window 1 D 12 a The bar across the top border of a MicroStation 95 window or view contains the window name on the left and three icons on the right The three icons are from left to right the Collapse icon the Size icon a one window icon means the MicroStation 95 window or view will be enlarged to fit the MicroStation 95 window whereas a two window icon means the MicroStation 95 window or view will be reduced to its previous size and the Close icon When the MicroStation 95 window or view is displaying the one window Size icon the MicroStation 95 window or view may be moved or resized Pressing and holding the left mouse button on the top bar and then moving the mouse will cause the window or view to be moved within the MicroStation 95 window 22 Pressing and holding the left mouse button on any of the four corners of the MicroStation 95 window or view will resize both the horizontal and vertical dimensions of the MicroStation 95 window or view Pressing and holding the left mouse button on any of the four edges of the M
22. choose File gt New A 4 From the Create Design File dialog box choose Select within the Seed File group A 5 From the Select Seed File dialog box under Directories make sure your er igids directory is selected then under Files choose train2d dgn and finally press the OK push button A 6 From the Create Design File dialog box under Directories make sure your er ligids directory is selected then under Files enter ex_hsd and finally press the OK push button A 7 From the MicroStation 95 Manager dialog box under Directories make sure your c igids directory is selected then under Files select ex_hsd dgn and finally press the OK push button A 8 If a MicroStation 95 Restricted Use dialog box appears for Academic Edition drag the MicroStation 95 Restricted Use dialog box off the screen 37 Start IGIDS B 1 In the MicroStation 95 Command Window Key in field enter mdl load igids Press the OK push button when the IGIDS Alert dialog box appears B 2 Drag the IGIDS Side Bar Menu to the upper left corner of the MicroStation window Load the saved IGIDS database ex_4x4 dbs C 1 From the IGIDS Side Bar Menu select LOADFROM gt DATABASE C 2 In the Intersection database filename dialog box under Directories make sure your c igids directory is selected then under Files choose ex_4x4 dbs and finally press the OK push button In Window 1 press the Fit
23. dialog box choose Tools gt Attach In the Attach Reference File dialog box under Directories make sure your er igids directory is selected then under Files select ex_intro dgn and finally press the OK push button In the new Attach Reference File dialog box set Logical Name to ex_intro set Description to leg to add set Attachment Mode to Coincident deselect Scale Line Styles and finally press the OK push button In the Reference Files Design Files 1 dialog box press the X in the upper right corner to close the dialog box The graphics from Introduction to MicroStation 95 should be visible Add a leg centerline from the scratch level F 1 F 2 F 3 F 4 From the IGIDS Side Bar Menu select ADD gt LEG CNTRLN gt SCRATCH LVL In response to the prompt Keyin Reset Leg number end command in the MicroStation 95 Command Window Prompt Message field enter 5 plus a carriage return or enter key in the MicroStation 95 Command Window Key in field When Keyin CL station number at intersection center appears in the MicroStation 95 Command Window Prompt Message field enter 0 plus a carriage return or enter key in the MicroStation 95 Command Window Key in field In response to the prompt Keyin increasing or decreasing in the MicroStation 95 Command Window Prompt Message field enter i plus a carriage return or the enter key in the MicroStation 95 Com
24. dialog box set Type of Striping to Solid Line set Width in mm to 6 150 set Color to White set Reference Object Type to IGIDS Edge set Mode to Place and press the Start push button IGIDS Striping dialog box When DataPt identify IGIDS Edge appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the edge line to the left of the centerline of the leg nearest the bottom of the screen The edge line should be highlighted In response to the prompt DataPt Reset accept reidentify in the MicroStation 95 Command Window Prompt Message field enter a Data point anywhere in the window to accept the edge line to the left of the centerline of the leg nearest the bottom of the screen When Keyin DataPt Trim length 0 Start of stripe appears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field In response to the prompt Keyin DataPt Stripe length 243 84 in the MicroStation 95 Command Window Prompt Message field enter a carriage 83 return or the enter key in the MicroStation 95 Command Window Key in field A Solid Line of width 150 mm 5 9 in and color of White should appear on the edge line to the left of the centerline of the leg nearest the bottom of the screen G 6 Repeat steps G 2 through G 5 for edge line to the right of the centerline of the leg nearest the bottom of the
25. if it is not in the locked position In the Design File Settings dialog box under Category choose Color In the Modify Color Settings area press the Element Highlight Color button and choose the color magenta In the Design File Settings dialog box under Category choose Coordinate Readout In the Modify Coordinate Readout Parameters area in the Coordinates group for Format select Master Units and for Accuracy select 4 decimals In the Design File Settings dialog box under Category choose Working Units In the Modify Working Unit Parameters area in the Units Name group in the Master Units box enter ft or FT for English units or enter m or M for metric units in the Sub Units box enter an appropriate designation for sub units In the Resolution group in the lt master units gt Per lt sub units gt box enter the number of subunits per master unit and in the Pos Units Per lt sub units gt box enter an appropriate number Please check with your Graphics Coordinator for appropriate values for these settings Because this IGIDS training course is based on metric units enter m in the Master Units box and enter mm in the Sub Units box Also enter 1000 in the mm Per m box and enter 100 in the Pos Units Per mm box In the Design File Settings dialog box press the OK push button An Alter dialog box may appear warning you that Changing your Working Units will change the size of existing elements
26. in the Orientation group choose Landscape and press the OK push button From the Plot Preview dialog box choose File gt Plot Get your plot from the printer and check your plot Close the Plot dialog box by selecting the X in the upper right corner 49 LEVI L ILL bblligisiiilid R a 7 f 3 Ne rioux pub igids ex_vsd dgn Jan 13 1998 10 55 17 Vertical Sight Distance Plot N K Save the intersection to a database file for later use K 1 From the IGIDS Side Bar Menu select SAVE TO gt Data Base K 2 In the IGIDS Database File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_vsd and finally press the OK push button IGIDS will save the intersection data to the file ex_vsd dbs L Exit IGIDS L 1 From the IGIDS Side Bar Menu select END IGIDS M Exit MicroStation 95 M 1 Choose MicroStation 95 File gt Exit 50 PRETIMED TRAFFIC SIGNAL AND HCM CHAPTER 9 ANALYSIS Objective Time a pretimed traffic signal controller and check v c ratios Activity Place a pretimed traffic signal controller with two phases place traffic signal heads define traffic signal phasing enter traffic signal timing specify traffic turn movement percentages and traffic volumes and perform a Highway Capacity Manual Chapter 9 analysis Background A pretimed traffic signal is used at many locations for interse
27. middle row is the Command Message field left side bottom row is the Key in field right side top row is the Inform Message field right side middle row is the Prompt Message field and right side bottom row is the Error Warning Message field In the Key in field you may enter up arrow and down arrow keys for command recall and selection and enter the home end delete backspace left arrow and right arrow keys for command editing In the Tools menu if Main gt Main does not have a check mark to its left then choose Main The Main Tools menu will appear The Main Tools menu may be docked in a manner similar to that used for docking the Primary Tools and Standard Tools menus The Main menu contains the MicroStation 95 commands to add modify and delete elements and are from left to right and top to bottom the Element Selection tool Fence commands Points commands Linear Elements Lines commands Patterns commands Polygons Shapes commands Arcs commands Ellipses Circle commands Tags commands Text commands Groups commands Cells commands Measure commands Dimension commands Change Attributes commands Manipulate commands Delete Element command and Modify commands The 3D menu will be activated only if the design file is 3D In the Tools gt 3D menu if 3D View Control does not have a check mark to its left then choose 3D View Control The 3D View Control menu will appear The 3D View Control menu may be docked in a manner simi
28. of the centerline of the leg nearest the top of the screen for stop line of the median lane to the right of the centerline of the leg nearest the left of the screen and for stop line of the curb lane to the right of the centerline of the leg nearest the left of the screen In the IGIDS Striping dialog box press the Done push button Set the viewing of the lane graphics off L1 From the IGIDS Side Bar Menu select VIEW gt Lane gt CURRENT OFF Create and review a traffic inventory report J 1 52 From the IGIDS Side Bar Menu select TOOLS gt Traffic gt Inventory gt Report In the IGIDS Inventory Report dialog box under Directories make sure your e igids directory is selected then under Files enter ex_strp and finally 85 3 3 3 4 press the OK push button IGIDS will save the traffic inventory report to the file ex_strp txt In the MicroStation 95 Command Window Key in field enter dr c igids ex_strp txt plus a carriage return or enter key The traffic inventory report should be displayed in the c igids ex_strp txt dialog box Close the c igids ex_strp txt dialog box by pressing the x in the upper right corner of the dialog box cNigids ex_strp txt dialog box Save the MicroStation 95 design file settings K 1 Choose MicroStation 95 File gt Save Settings Plot the drawing L 1 Choose MicroStation 95 File gt Print Plot From the Plot dialog box choose
29. of the intersection and press the Data button Place the vehicle turn template for aWB 60 18 truck E 1 E 2 E 3 E 4 E 5 E 6 E 7 From the IGIDS Side Bar Menu select TOOLS gt TurnTemplate gt WB 60 18 In response to the prompt DataPt identify inbound leg in the MicroStation 95 Command Window Prompt Message field place a Data point on the leg nearest the bottom of the screen When DataPt Reset accept reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the leg In response to the prompt DataPt Reset identify outbound leg reidentify inbound leg in the MicroStation 95 Command Window Prompt Message field place a Data point on the leg nearest the right of the screen When DataPt Reset accept reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the leg In response to the prompt Key in Reset turn radius 14 0 reidentify outbound leg in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field When Key in Reset clearance O none 0 2 reid outbound leg appears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field IGIDS will gene
30. press the OK push button B 8 From the MicroStation 95 dialog box choose Settings gt View Attributes B 9 In the View Attributes dialog box set Dynamics on Fast Cells off Fast Curves off Fast Font off Fill on Level Symbology off Line Styles on Line Weights on Text on press the All button and close the View Attributes dialog box 14 B 10 From the MicroStation 95 dialog box choose File gt Save Settings C Save the design file as ex_intro dgn CA From the MicroStation 95 dialog box choose File gt Save As In the Save Design As dialog box under Directories make sure your e igids directory is selected then under Files enter ex_intro and finally press the OK push button D Explore MicroStation 95 D 1 D 2 The top of the Microstation 95 window has File Edit Element Settings Tools Utilities Workspace Applications Window and Help menus that provide the normal Windows functionality On some systems Applications may not be displayed The File menu contains the MicroStation 95 specific items Compress Design Save Settings Reference Print Plot Page Setup Exit and others Take this opportunity to look at the menus under File Each time the user adds deletes or modifies an element with MicroStation 95 the change is immediately written to the design file thus there is
31. screen for curb return line to the right of the centerline of the leg nearest the bottom of the screen for edge line to the left of the centerline of the leg nearest the right of the screen for edge line to the right of the centerline of the leg nearest the right of the screen for curb return line to the right of the centerline of the leg nearest the right of the screen for edge line to the left of the centerline of the leg nearest the top of the screen for edge line to the right of the centerline of the leg nearest the top of the screen for curb return line to the right of the centerline of the leg nearest the top of the screen for edge line to the left of the centerline of the leg nearest the left of the screen for edge line to the right of the centerline of the leg nearest the left of the screen and for curb return line to the right of the centerline of the leg nearest the left of the screen H Add the stop line striping H 1 In the IGIDS Striping dialog box set Type of Striping to Solid Line set Width in mm to 18 450 set Color to White set Reference Object Type to IGIDS Edge set Mode to Place and press the Start push button lt Inbound IGIDS Striping dialog box H 2 When DataPt identify IGIDS Edge appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop 84 H 3 H 4 HS H 6 H 7 line of the median lane to the right of the centerline of the leg ne
32. signal face on the curb lane of the leg nearest the bottom of the screen will be changed to green When DataPt Reset accept amp id item to add remove reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens signal face on the curb lane of the leg nearest the top of the screen The color of the three lens signal face on the center lane of the leg nearest the top of the screen will be changed to green In response to the prompt DataPt Reset accept amp id item to add remove reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the lane The color of the three lens signal face on the curb lane of the leg nearest the top of the screen will be changed to green When DataPt Reset accept amp id item to add remove reidentify appears in the MicroStation 95 Command Window Prompt Message field enter a Reset The color of the three lens signal face on the center and curb lanes of the leg nearest the bottom of the screen and the three lens signal face on the center and curb lanes of the leg nearest the top of the screen will be changed to white In response to the prompt Key in phase number 1 in the MicroStation 95 Command Window Prompt Message field enter a 3 plus a carriage return or enter key in the MicroStation 95 Command Window Key in field When DataPt Reset id sig hd
33. the leg nearest the left of the screen will be changed to white When Key in phase number 1 appears in the MicroStation 95 Command Window Prompt Message field enter 4 plus a carriage return or enter key in the MicroStation 95 Command Window Key in field In response to the prompt DataPt Reset id sig hd or chan sym to add reenter in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens signal face on the center lane of the leg nearest the right of the screen When DataPt Reset accept amp id item to add remove reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens signal face on the curb lane of the leg nearest the right of the screen The color of the three lens signal face on the center lane of the leg nearest the right of the screen will be changed to green In response to the prompt DataPt Reset accept amp id item to add remove reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens signal face on the center lane of the leg nearest the left of the screen The color of the three lens signal face on the curb lane of the leg nearest the right of the screen will be changed to green When DataPt Reset accept amp id item to add remove reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the
34. the screen should be highlighted When DataPt Reset accept amp define dir amp rotate appears in the MicroStation 95 Command Window Prompt Message field place a Data point to the left of the highlighted leg in a location such that the perpendicular projection of the point falls on the highlighted centerline of the leg IGIDS will rotate the leg 15 0 degrees counterclockwise and report statistics in the MicroStation 95 Command Window Inform Message field In response to the prompt DataPt Reset define dir amp rotate reidentify in the MicroStation 95 Command Window Prompt Message field enter a Reset button When DataPt identify Leg to rotate appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the leg nearest the right of the screen In response to the prompt DataPt Reset accept define dir amp rotate reidentify in the MicroStation 95 Command Window Prompt 90 Message field place a Data point below the highlighted leg in a location such that the perpendicular projection of the point falls on the highlighted centerline of the leg IGIDS will rotate the leg 15 0 degrees clockwise and report statistics in the MicroStation 95 Command Window Inform Message field Attach the reference file ex_intro dgn to the design file Bel E 2 E 3 EA ES From the MicroStation 95 dialog box choose File gt Reference In the Reference Files Design Files 0
35. three lens signal face on the curb lane of the leg nearest the left of the screen The color of the three lens signal face on the center lane of the leg nearest the left of the screen will be changed to green In response to the prompt DataPt Reset accept amp id item to add remove reidentify in the MicroStation 95 Command Window Prompt 65 G 25 Message field place a Data point anywhere in the window to accept the lane The color of the three lens signal face on the curb lane of the leg nearest the left of the screen will be changed to green When DataPt Reset accept amp id item to add remove reidentify appears in the MicroStation 95 Command Window Prompt Message field enter a Reset The color of the three lens signal face on the center and curb lanes of the leg nearest the right of the screen and the three lens signal face on the center and curb lanes of the leg nearest the left of the screen will be changed to white Define the NEMA traffic signal controller timing H 1 H 2 H 3 H 4 H 5 From the IGIDS Side Bar Menu select TOOLS gt Traffic gt Controller gt Timing In the Timing Data For NEMA Actuated Controller dialog box for All Phases Yellow Clearance enter 2 5 seconds and a tab character then press the Apply push button below the All Phases Yellow Clearance Data entry box The Yellow Clearance time for all phases should change to 2 5 seconds In the Timing Data For NEM
36. tools may be loosely divided into three groups First are the drawing tools IGIDS uses MicroStation as a graphics engine to perform all graphics input and output The user may select from an IGIDS library one of several typical intersection designs modifying it as needed to define the particular intersection of interest Alternately the user may define the intersection geometry by pointing at selected elements in a reference file created by another source such as a topographical map of the area with optional use of a superimposed aerial photo Finally the user may create the key components of the intersection geometry on the scratch level using MicroStation commands with optional use of a superimposed aerial photo and then define the intersection geometry by pointing at these elements After the intersection leg centerlines have been defined IGIDS provides several commands with which to place lanes and curb returns and manipulate the various intersection elements The elements of the design may be specified by the most convenient method for the particular situation For example lane width may sometimes be specified by keyboard entry of a numerical value Or it may be more convenient to identify lane edge graphics in a file that is being viewed concurrently with the IGIDS graphics file Alternately requesting that the lane edges be located by identifying existing landmarks on a superimposed aerial photo may be more convenient Traffic control fe
37. 1 From the IGIDS Side Bar Menu select SAVE TO gt Data Base I 2 In the IGIDS Database File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_hsd and finally press the OK push button IGIDS will save the intersection data to the file ex_hsd dbs J Exit IGIDS J 1 From the IGIDS Side Bar Menu select END IGIDS K Exit MicroStation 95 K 1 Choose MicroStation 95 File gt Exit 42 VERTICAL SIGHT DISTANCE Objective Evaluate the vertical sight distance for yield sign control Activity Place the horizontal sight distance triangle for yield sign control and check for obstructions within the horizontal sight distance triangle Background A Policy on Geometric Design of Highways and Streets 1994 by the American Association of State Highway and Transportation Officials defines procedures to calculate the required horizontal sight distance between adjacent legs of an intersection for yield sign control no control and stop sign control The area within this horizontal sight distance triangle must be clear of major sight obstructions to ensure safe operation of the intersection To aid in the identification of any major sight obstruction within this horizontal sight distance triangle the triangle file from a Digital Terrain Model containing the terrain and man made features that may obstruct sight may be attached as a reference file and IGIDS will determine whether
38. 20 21 22 23 MicroStation 95 Academic Suite PC Setup Guide Bentley Systems Inc 1995 MicroStation 95 Academic Suite Upgrade Guide Bentley Systems Inc 1996 MicroStation 95 Academic Suite User s Guide Bentley Systems Inc 1995 Lee Clyde E Thomas W Rioux and Charlie R Copeland The TEXAS Model for Intersection Traffic Development Research Report 184 1 CFHR 3 18 72 184 1 Center for Highway Research The University of Texas at Austin Austin Texas December 1977 Lee Clyde E Thomas W Rioux Vivek S Savur and Charlie R Copeland The TEXAS Model for Intersection Traffic Programmer s Guide Research Report 184 2 CFHR 3 18 72 184 2 Center for Highway Research The University of Texas at Austin Austin Texas December 1977 Lee Clyde E Glenn E Grayson Charlie R Copeland Jeff W Miller Thomas W Rioux and Vivek S Savur The TEXAS Model for Intersection Traffic User s Guide Research Report 184 3 CFHR 3 18 72 184 3 Center for Highway Research The University of Texas at Austin Austin Texas July 1977 Rioux Thomas W and Clyde E Lee TEXAS A Microscopic Traffic Simulation Package for Isolated Intersections 56th Annual Meeting of the Transportation Research Board Washington D C January 1977 and Transportation Research Record 644 1977 pages 45 51 Lee Clyde E Robert F Inman and Wylie M Sanders User Friendly TEXAS Mode
39. 59 mm white 2926 08 N Striping Double Salig Lina 150 mm yellow 975 36 M Striping Solid Line 450 mm white 42 20 M Signal 3 lens vertical e Signal 3 lens proteoted left vertical 4 Channalisation left 4 Controller Pratimed size 1 2 Chanuplization Right a channelivation Straight IDS External Analysis Tools IGIDS builds input to external analysis tool for execution outside IGIDS and may retrieve output results for processing within IGIDS m Texas Model for intersection Traffic m Signal Operations Analysis Package u TxDOT Automated Plan Preparation System ffic Control Features readsheet Importable File ntarantive Graphicg Intersection Design System Version 03 00 urrent Data and Time 14 Jan 1998 19 08 09 atersection Description Interactive Graphics Intersection Design System Iterative Deseriptinn er igids ays_data sTn 5X5 DAT ternative Number ining Solid Line 15 white 71990 17 nM zipang Broken Bine 150 am white 2026 08 H Striping Double Solid Line 130 am yellow 975 36 M Striping Solid Lina 450 um white 43 20 M Signal 3 lens vertical g Signal 3 lens protected left vertical 4 chamelization left 4 Controller Pratimed size 1 1 Chaan lization Right 4 Channalization Straight 4 ining Materials IGIDS Training Manual Beginners and advanced exercises Self
40. 95 Command Window Prompt Message field place a Data point on the leg nearest the right of the screen In response to the prompt DataPt Reset accept reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the leg When Key in Reset conflicting Leg speed 48 km h reidentify appears in the MicroStation 95 Command Window Prompt Message field enter a catriage return or the enter key in the MicroStation 95 Command Window Key in field IGIDS will calculate and display the horizontal sight distance triangle for a passenger car Starting at the car on the inbound lane the path that the car would take from its position on the inbound lane to the conflict point within the intersection is drawn Then the path that the car on the conflicting leg would take from its position on the conflicting leg to the conflict point within the intersection is drawn Finally a line is drawn from the driver s eye position within the car on the inbound lane to the front bumper position of the car on the conflicting leg The distance from the conflict point within the intersection to the front bumper position of the car on the inbound lane and to the car on the conflicting leg is calculated based upon the speeds specified and procedures in A Policy on Geometric Design of Highways and Streets 1990 and A Policy on Geometric Design of Highways and Streets 1994 American Association of State Highway
41. A Actuated Controller dialog box for All Phases All Red Clearance enter 1 0 seconds and a tab character then press the Apply push button below the All Phases All Red Clearance data entry box The All Red Clearance time for all phases should change to 1 0 seconds In the Timing Data For NEMA Actuated Controller dialog box for Phase 1 Maximum Extension enter 9 seconds and a tab character and set Recall to MAX for Phase 2 Maximum Extension enter 29 seconds and a tab character and set Recall to MAX for Phase 3 Maximum Extension enter 8 seconds and a tab character and set Recall to MAX and for Phase 4 Maximum Extension enter 30 seconds and a tab character and set Recall to MAX In the Timing Data For NEMA Actuated Controller dialog box press the OK push button 66 Timing Data for NEMA Actuated Controller dialog box Define the traffic turn movement percentages and the traffic volumes for each leg I i From the IGIDS Side Bar Menu select TOOLS gt Traffic gt Volume gt Percent VOL 1 2 Inthe Traffic Turn Movement Count dialog box for EB Leg 4 set U Turn to 0 Left Turn to 15 set Straight to 75 set Right Turn to 10 and set Total Volume to 720 vehicles per hour 13 In the Traffic Turn Movement Count dialog box for WB Leg 2 set U Turn to 0 Left Turn to 13 set Straight to 79 set Right Turn to 8 and set Total Volume to 760 vehicles per hour In the Traffic Turn
42. Bar Menu select ROTATE gt LEG D 2 D 3 D 4 D 5 D 6 When Key in Rotation angle 1 0 appears in the MicroStation 95 Command Window Prompt Message field enter 3 25 plus a carriage return key in the MicroStation 95 Command Window Key in field IGIDS will highlight the leg nearest the top of the screen and issue the prompt DataPt Reset accept amp define dir amp rotate reidentify in the MicroStation 95 Command Window Prompt Message field Click the right mouse button to signal a Reset and the leg nearest the top of the screen will return to its normal color In response to the prompt DataPt identify a Leg in the MicroStation 95 Command Window Prompt Message field place a Data point on the leg nearest the bottom of the screen When DataPt Reset accept amp define dir amp rotate reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point to the right of the highlighted leg in a location such that the perpendicular projection of the point falls on the highlighted centerline of the leg IGIDS will rotate the leg 3 25 degrees counterclockwise and report statistics in the MicroStation 95 Command Window Inform Message field In Window 1 press the Zoom In icon the second icon from the left Repeat this procedure four times move the cursor in Window 1 so that the 32 upper left corner of the zoom in rectangle is just to the upper left of the center
43. IDS object knows the type of its parent IGIDS object and which specific IGIDS object entry is its parent An IGIDS object can have more than one category of child IGIDS object The number of children IGIDS objects accommodated by IGIDS is virtually infinite Each parent IGIDS object maintains the current number of children IGIDS objects and has a pointer to the beginning and ending children IGIDS objects for each category of children IGIDS objects Each IGIDS object has a pointer to the previous and to the next IGIDS object on the list An IGIDS object with a null previous pointer is the first IGIDS object on the list An IGIDS object with a null next pointer is the last IGIDS object on the list An IGIDS object with a null previous pointer and a null next pointer is the only IGIDS object on the list Most high level IGIDS objects serve to group the children IGIDS objects only the lowest level IGIDS objects have a graphical representation Any procedure applied to an IGIDS object is automatically applied to all the children of the IGIDS object The six IGIDS objects are Intersection Alternative Leg Lane Seg Segment and Text There is only one intersection IGIDS object and it has a list of up to fifteen alternatives and other intersection data Each alternative IGIDS object has an intersection parent pointer a list of legs a list of text and other alternative data Each leg IGIDS object has an alternative parent pointer a list of centerline segmen
44. IGIDS_PATH is e igids but IGIDS can be loaded in any device and directory D 8 b The Button Assignments dialog box allows the user to specify the association between the buttons on the mouse and the meaning to MicroStation 95 Select Workspace gt Button Assignments The Data button specifies a coordinate to MicroStation 95 or if the Tentative button was last used it accepts the snapped calculated coordinate and is normally the left button on the mouse The Tentative button specifies a coordinate to MicroStation 95 that causes MicroStation 95 to search the design file for an element close to the coordinate specified calculate a coordinate based upon the current snap feature move an enlarged cursor to the calculated coordinate and highlight the selected element If the snapped calculated coordinate is not acceptable the user may enter additional Tentative buttons until an acceptable coordinate is displayed To accept the Tentative button snapped calculated coordinate the user would enter a single Data button the location of the cursor for the Data button is not pertinent The Tentative button is normally the center button on a three button mouse while the Tentative button is normally a left button right button chord left and right button pressed at the same time on a two button mouse The Reset button specifies a reset or reject action to MicroStation 95 and is normally the right button on the mouse The 21 D 9 D 10
45. K push button when the IGIDS Alert dialog box appears Drag the IGIDS Side Bar Menu to the upper left corner of the MicroStation window an intersection with four left turn lanes From the IGIDS Side Bar Menu select LOADFROM gt STANDARD gt 5x5 When DataPt Reset Alternative center end command is shown in the MicroStation 95 Command Window Prompt Message field enter xy 5000 5000 plus a carriage return in the MicroStation 95 Command Window Key in field When Key in Alternative number 1 appears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field In Window 1 press the Fit View icon In Window 1 press the Zoom In icon Repeat this procedure three times move the cursor in Window 1 so that the center of the zoom in rectangle is near the center of the intersection and press the Data button In the Zoom In dialog box change 2 0 to 1 75 move the cursor in Window 1 so that center of the zoom in rectangle is near the center of the intersection press the Data button and in the Zoom In dialog box change 1 75 back to 2 0 a NEMA signal controller From the IGIDS Side Bar Menu select Tools gt Traffic gt Controller gt NEMA When DataPt locate NEMA controller is shown in the MicroStation 95 Command Window Prompt Message field enter xy 5017 4983 plus a carriage return in the MicroStation 95 Command Windo
46. Technical Report Documentation Page 1 Report No 2 Government Accession No 3 Recipient s Catalog No FHWA TX 98 1291 1 4 Title and Subtitle 5 Report Date January 1998 INTERACTIVE GRAPHICS INTERSECTION DESIGN 6 Performing Organization Code SYSTEM IGIDS TRAINING MANUAL 7 Author s 8 Performing Organization Report No Thomas W Rioux Robert Inman Randy B Machemehl Research Report 1291 1 and Clyde E Lee 9 Performing Organization Name and Address 10 Work Unit No TRAIS Center for Transportation Research The University of Texas at Austin 3208 Red River Suite 200 11 Contract or Grant No Austin TX 78705 2650 0 1291 12 Sponsoring Agency Name and Address 13 Type of Report and Period Covered Texas Department of Transportation Research Report 9 96 8 97 Construction Research Section P O Box 5080 14 Sponsoring Agency Code Austin TX 78763 5080 15 Supplementary Notes Project conducted in cooperation with the Federal Highway Administration 16 Abstract The Interactive Graphics Intersection Design System IGIDS a software package that operates on personal computers and workstations has been developed to assist engineers in the analysis and design of isolated at grade intersections This report serves as the training manual for the application of this intersection design software 17 Key Words 18 Distribution Statement Intersection design Interactive Graphics Intersection No res
47. View icon In Window 1 press the Zoom In icon Repeat this procedure two times move the cursor in Window 1 so that the upper left corner of the zoom in rectangle is just to the upper left of the center of the intersection and press the Data button In the Zoom In dialog box change 2 0 to 1 5 move the cursor in Window 1 so that the upper left corner of the zoom in rectangle is just to the upper left of the center of the intersection press the Data button and in the Zoom In dialog box change 1 5 back to 2 0 Place the horizontal sight distance triangle for yield sign control D 1 From the IGIDS Side Bar Menu select TOOLS gt Sight Dist gt Horizontal Yield D 2 In response to the prompt DataPt identify yielding Inbound Lane in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the median lane of the leg nearest the bottom of the screen D 3 When DataPt Reset accept reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the lane D 4 In response to the prompt Key in Reset yielding Leg speed 48 km h reidentify in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field 38 D 5 D 6 D 7 When DataPt Reset identify conflicting Leg reidentify inbound lane appears in the MicroStation
48. _4x4 dbs Exit IGIDS G 1 From the IGIDS Side Bar Menu select END IGIDS Exit MicroStation 95 H 1 Choose MicroStation 95 File gt Exit 29 30 VEHICLE TURN TEMPLATES Objective Design the curb lane curb return Activity Generate and manipulate a vehicle turn template for a WB 60 18 truck and modify the curb return radius Background To determine the curb return radius between adjacent legs of an intersection one or more vehicle turn templates should be generated and manipulated The vehicle turn template tracks the outside front bumper and inside real axle positions of the selected standard AASHTO vehicle as the front axle follows a circular arc of a circle for the specified radius and in addition provides an optional safety zone The curb return radius should be modified to accommodate the critical path A Start MicroStation 95 and create a 2D design file ex_txtom dgn using the seed file train2d dgn Al A 2 A 3 A 4 AS A 6 A 7 A B From the Windows NT Start Menu in the lower left corner of the screen choose Start gt Programs gt MicroStation95 gt MicroStation95 From the MicroStation 95 Manager dialog box choose Style gt Command Window From the MicroStation 95 Manager dialog box choose File gt New From the Create Design File dialog box choose Select within the Seed File group From the Select Seed File dialog box under Directories make sure your e igi
49. acts and the accuracy of the data presented herein The contents do not necessarily reflect the official views or policies of the Federal Highway Administration or the Texas Department of Transportation This report does not constitute a standard specification or regulation There was no invention or discovery conceived or first actually reduced to practice in the course of or under this contract including any art method process machine manufacture design or composition of matter or any new and useful improvement thereof or any variety of plant which is or may be patentable under the patent laws of the United States of America or any foreign country NOT INTENDED FOR CONSTRUCTION BIDDING OR PERMIT PURPOSES Randy B Machemehl P E Texas No 41921 Research Supervisor iii iv TABLE OF CONTENTS Overview of IGIDS ERSTER ERROR nannte RAR rene Caution neneeene EEIE OEL Soden sa Bs TEENS E T PIERRE ee 11 Introduction of MicroStation 95 NN REIN ENE RETURN en 13 Simple Example ten FIRE EIERN N EEAS a Vehicle Turn Templates EEEE ie Keete NERREESEEEERER 31 Horizontal Sight Distance EEA ETETE ee ee rt Vertical Sight Distance sedsekassstoaat EEE IR iiinis E E Pretimed Traffic Signal and HCM Chapter 9 Analysis A A EEA NEMA Traffic Signal uesssenn O EET ee 59 Texas Model for Intersection Traffic
50. ain Roadway Alignment a Access Digital Terrain Model DTM by identifying a single triangle from DTM tnangle reference file u Horizontal alignment defined by selection of IGIDS legs lanes u Vertical alignment defined by station elevation grade and cross slope rtical Sight Distance Checking rtical Sight Distance ecking Stop Sign Control affic Signal Timing etimed Signal Controllers iffic Signal Timing ghway Capacity Manual apter 9 V C Ratio V C Ratio vement Markings Types of Striping solid line broken line dotted line lane drop no passing inbound no passing outbound double solid line and double broken line Width 4 6 8 12 18 and 24 inches 100 150 200 300 450 and 600 mm m Color white and yellow ghway Capacity Manual apter 9 Stopped Delay Stopped Delay Signals and Pavement rkings Signs Stop and Yield Signals Pretimed and NEMA Controllers Traffic Signal Heads m Pavement Markings Striping m Traffic Control Features Bill of Materials vement Markings l of Materials bular Report _ interactive Graphics Intersaction Design System Version 63 00 rent Date and Time 14 Jan 1994 14 06 47 Intersection Description Interactive Graphics Intersectian Design Syaten Alternative Description gi igtas syq_data SPo_5xS5 NAT Alternative Number 1 Striping Solid Line 150 mon white 1390 17 H Striping Broken Line 1
51. and Transportation AASHTO Place the horizontal sight distance triangle for no control El E 2 E 3 EA From the IGIDS Side Bar Menu select TOOLS gt Sight Dist gt Horizontal gt No Control In response to the prompt DataPt identify first Inbound Lane in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the median lane of the leg nearest the bottom of the screen When DataPt Reset accept reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the lane In response to the prompt Key in Reset first Leg speed 48 km h reidentify in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field 39 E 5 E 6 E 7 When DataPt Reset identify second Inbound Lane reidentify inbound leg appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the median lane of the leg nearest the right of the screen In response to the prompt DataPt Reset accept reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the lane When Key in Reset second Leg speed 48 km h reidentify appears in the MicroStation 95 Command Window Prompt Message field enter a carriage retu
52. ar on the conflicting leg would take from its position on the conflicting leg to the conflict point within the intersection is drawn Finally a line is drawn from the driver s eye position within the car on the inbound lane to the front bumper position of the car on the conflicting leg The distance from the conflict point within the intersection to the front bumper position of the car on the inbound lane and to the front bumper position of the car on the conflicting leg is calculated based upon the speed specified and procedures in A Policy on Geometric Design of Highways and Streets 1990 and A Policy on Geometric Design of Highways and Streets 1994 American Association of State Highway and Transportation AASHTO Save the MicroStation 95 design file settings G 1 Choose MicroStation 95 File gt Save Settings Plot the drawing H 1 Choose MicroStation 95 File gt Print Plot From the Plot dialog box choose File gt Preview From the Plot Preview dialog box choose Setup gt Page In the Print Setup dialog box in the Printer group choose a Name in the Orientation group choose Landscape and press the OK push button From the Plot Preview dialog box choose File gt Plot Get your plot from the printer and check your plot Close the Plot dialog box by selecting the X in the upper right corner 41 Horizontal Sight Distance Plot I Save the intersection to a database file for later use I
53. arest the bottom of the screen The stop line should be highlighted In response to the prompt DataPt Reset accept reidentify in the MicroStation 95 Command Window Prompt Message field enter a Data point anywhere in the window to accept the stop line of the median lane to the right of the centerline of the leg nearest the bottom of the screen When Keyin DataPt Trim length 0 Start of stripe appears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field In response to the prompt Keyin DataPt Stripe length 3 60 in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field A Solid Line of width 300 mm 11 8 in and color of White should appear on stop line of the median lane to the right of the centerline of the leg nearest the bottom of the screen Repeat steps H 2 through H 5 for stop line of the curb lane to the right of the centerline of the leg nearest the bottom of the screen for stop line of the median lane to the right of the centerline of the leg nearest the right of the screen for stop line of the curb lane to the right of the centerline of the leg nearest the right of the screen for stop line of the median lane to the right of the centerline of the leg nearest the top of the screen for stop line of the curb lane to the left
54. at any time D 6 a 3 Active Style specifies one of 8 predefined styles 0 7 or one of a virtually an unlimited number of Custom styles Style defines the appearance of data solid dashed dotted etc The user may create his her own Custom styles IGIDS uses Custom styles for striping D 6 a 4 Active Weight specifies one of 16 predefined weights 0 15 Weight defines the thickness or number of pixels displayed on the screen for graphics When plotting the design file the Weight can be converted to a line thickness In the Tools menu if Standard does not have a check mark to its left then choose Standard The Standard Tools menu will appear Place the cursor on the top bar of the Standard Tools menu press and hold the left button drag the menu into the top of the MicroStation 95 window to the right of the Primary Tools menu and at the same horizontal position as the Primary Tools menu and finally release the 18 D 6 c D 6 d D 6 e left button This action will dock the Standard Tools menu The Standard Tools menu contains items New File Open File Save Design Print Cut Copy Paste Undo Redo and Help When you started MicroStation 95 we had you choose Style gt Command Window The MicroStation 95 Command Window should be directly below the Primary Tools and Standard Tools menus The fields within the MicroStation 95 Command Window include the following left side top row is the Status Message field left side
55. ate Design File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_strp finally press the OK push button A 7 From the MicroStation 95 Manager dialog box under Directories make sure your e igids directory is selected then under Files select ex_strp dgn and finally press the OK push button 79 A 8 If a MicroStation 95 Restricted Use dialog box appears for Academic Edition drag the MicroStation 95 Restricted Use dialog box off the screen Start IGIDS B 1 In the MicroStation 95 Command Window Key in field enter mdl load igids Press the OK push button when the IGIDS Alert dialog box appears B 2 Drag the IGIDS Side Bar Menu to the upper left corner of the MicroStation window Load the saved IGIDS database ex_pts dbs C 1 From the IGIDS Side Bar Menu select LOADFROM gt DATABASE C 2 In the Intersection database filename dialog box under Directories make sure your e igids directory is selected then under Files choose ex_pts dbs and finally press the OK push button IGIDS will then draw the graphics that represent this saved IGIDS database C 3 In Window 1 press the Fit View icon The intersection should be visible In Window 1 press the Zoom In icon Repeat this procedure three times move the cursor in Window 1 so that the center of the zoom in rectangle is in the center of the intersection and press the Data button
56. ation 95 Command Window Key in field When Keyin DataPt Lane length 285 75 appears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or enter key in the MicroStation 95 Command Window Key in field Add outbound lanes by key in Hl H 2 H 3 H 4 H 5 H 6 From the IGIDS Side Bar Menu select ADD gt LANE OUTBND gt BY KEY IN In response to the prompt DataPt Reset accept reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the highlighted leg When Keyin Reset no new outb Lanes 1 reidentify appears in the MicroStation 95 Command Window Prompt Message field enter 2 plus a carriage return or enter key in the MicroStation 95 Command Window Key in field In response to the prompt Keyin number of right turn bays 0 in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field When Keyin DataPt setback to beginning of Lanes appears in the MicroStation 95 Command Window Prompt Message field enter 0 plus a carriage return or enter key in the MicroStation 95 Command Window Key in field In response to the prompt Keyin DataPt distance from CL 0 00 in the MicroStation 95 Command Window Prompt Message field enter a carriage return or enter key in the MicroStation 95 Co
57. atures such as stop signs yield signs signal controller cabinets channelization symbols and signal heads may be placed by the user Traffic data may be entered as turn movement volumes or as leg volumes with turn percentages using a dialog box Signal phasing is entered graphically while signal timing is entered using a dialog box Centerline lane edge and stop line striping may be added using IGIDS elements Other striping such as for islands tapers and gores may be created using graphical elements placed on the scratch level Striping types include solid line broken line dotted line lane drop no passing inbound no passing outbound double solid line and double broken line Striping widths are 100 150 200 300 450 and 600 mm 4 6 8 12 18 and 24 inches Striping colors are white and yellow Only valid combinations of striping type striping width and striping color can be placed by the user Next are the built in analysis tools Both graphical aids and computational analysis procedures are incorporated For the standard AASHTO design vehicles vehicle turning templates may be quickly drawn to a user specified turn radius for the turn angle between adjacent user selected legs These templates may be moved dynamically over the intersection geometry to evaluate pavement edge and channelization requirements For checking horizontal sight distance restrictions sight lines for stopped vehicles yielding vehicles or vehicles app
58. ave the intersection to a Database file for later use L 1 From the IGIDS Side Bar Menu select SAVE TO gt Data Base L 2 In the IGIDS Database File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_nema and finally press the OK push button IGIDS will save the intersection data to the file ex_nema dbs Exit IGIDS M 1 From the IGIDS Side Bar Menu select END IGIDS Exit MicroStation 95 N 1 Choose MicroStation 95 File gt Exit 69 70 TEXAS MODEL FOR INTERSECTION TRAFFIC Objective Simulate the operation of the intersection using the Texas Model for Intersection Traffic Activity Create Texas Model for Intersection Traffic input files from the Pretimed Traffic Signal and HCM Chapter 9 Analysis example Background The Texas Model for Intersection Traffic provides microscopic simulation of vehicular traffic flow through a single intersection or diamond interchange and generates both a statistical summary and animated graphics that show drawn to scale color coded vehicle types moving through the intersection geometry Input data for the Texas Model includes a definition of the geometry intersection control and traffic data IGIDS can create the input files necessary to run the Texas Model The Texas Model can then be run outside of IGIDS If a spreadsheet compatible output file is requested of the Texas Model IGIDS can read this spreadsheet compati
59. ble output file and display selected statistics in bar charts A Start MicroStation 95 and create a 2D design file ex_texas dgn using the seed file train2d dgn A l From the Windows NT Start Menu in the lower left corner of the screen choose Start gt Programs gt MicroStation95 gt MicroStation95 A 2 From the MicroStation 95 Manager dialog box choose Style gt Command Window A 3 From the MicroStation 95 Manager dialog box choose File gt New AA From the Create Design File dialog box choose Select within the Seed File group A 5 From the Select Seed File dialog box under Directories make sure your e igids directory is selected then under Files choose train2d dgn and finally press the OK push button A 6 From the Create Design File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_texas and finally press the OK push button A 7 From the MicroStation 95 Manager dialog box under Directories make sure your e igids directory is selected then under Files select ex_texas dgn and finally press the OK push button T1 A 8 If a MicroStation 95 Restricted Use dialog box appears for Academic Edition drag the MicroStation 95 Restricted Use dialog box off the screen Start IGIDS B 1 In the MicroStation 95 Command Window Key in field enter mdl load igids Press the OK push button when the IGIDS A
60. ction control The phasing and timing of this traffic signal is critical to the operation of the intersection The Highway Capacity Manual HCM Special Report 209 Chapter 9 prepared by the Transportation Research Board defines procedures that may be used to find v c ratios and delays for intersections having pretimed controllers To perform the HCM Chapter 9 analysis the traffic signal heads the traffic signal phasing the traffic signal timing and the traffic turn movement counts or traffic turn movement percentages and traffic volumes must be defined by the user A Start MicroStation 95 and create a 2D design file ex_pts dgn using the seed file train2d dgn A l From the Windows NT Start Menu in the lower left corner of the screen choose Start gt Programs gt MicroStation95 gt MicroStation95 A 2 From the MicroStation 95 Manager dialog box choose Style gt Command Window A 3 From the MicroStation 95 Manager dialog box choose File gt New A 4 From the Create Design File dialog box choose Select within the Seed File group A 5 From the Select Seed File dialog box under Directories make sure your e igids directory is selected then under Files choose train2d dgn and finally press the OK push button A 6 From the Create Design File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_pts and finally press the OK push button
61. de Bar Menu select TOOLS gt Traffic gt Controller gt Timing In the Timing Data For Pretimed Signal dialog box for All Phases Yellow enter 2 5 seconds and a tab character then press the Apply push button below the All Phases Yellow data entry box The Yellow time for Phase 1 and Phase 2 should change to 2 5 seconds In the Timing Data For Pretimed Signal dialog box for Phase 1 Green enter 36 seconds and a tab character Note that the Cycle Length is calculated to be 73 seconds In the Timing Data For Pretimed Signal dialog box for Phase 2 Green enter 34 seconds and a tab character Note that the Cycle Length is calculated to be 77 seconds In the Timing Data For Pretimed Signal dialog box press the OK push button 33 Timing Data for Pretimed Signal dialog box H Define the traffic turn movement percentages and the traffic volumes for each leg H 1 From the IGIDS Side Bar Menu select TOOLS gt Traffic gt Volume gt Percent VOL H 2 In the Traffic Turn Movement Count dialog box for EB Leg 4 set U Turn to 0 Left Turn to 15 set Straight to 75 set Right Turn to 10 and set Total Volume to 720 vehicles per hour H 3 In the Traffic Turn Movement Count dialog box for WB Leg 2 set U Turn to 0 Left Turn to 13 set Straight to 79 set Right Turn to 8 and set Total Volume to 760 vehicles per hour H 4 In the Traffic Turn Movement Count dialog box for NB Leg 3 set U Turn to 0 Lef
62. ds directory is selected then under Files choose train2d dgn and finally press the OK push button From the Create Design File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_txtom and finally press the OK push button From the MicroStation 95 Manager dialog box under Directories make sure your e igids directory is selected then under Files select ex_txtom dgn and finally press the OK push button If a MicroStation 95 Restricted Use dialog box appears for Academic Edition drag the MicroStation 95 Restricted Use dialog box off the screen 31 Start IGIDS B 1 In the MicroStation 95 Command Window Key in field enter mdl load igids Press the OK push button when the IGIDS Alert dialog box appears B 2 Drag the IGIDS Side Bar Menu to the upper left corner of the MicroStation window Load the saved IGIDS database ex_4x4 dbs C 1 From the IGIDS Side Bar Menu select LOADFROM gt DATABASE C 2 In the Intersection database filename dialog box under Directories make sure your e igids directory is selected then under Files choose ex_4x4 dbs and finally press the OK push button IGIDS will then draw the graphics that represent this saved IGIDS database In Window 1 press the Fit View icon The intersection should be visible Adjust the angle of one leg by 3 25 degrees D 1 From the IGIDS Side
63. e the Color 0 254 the Style 0 7 and Custom the Weight or thickness 0 15 and the Class Primary or Construction Each MicroStation 95 element may have specific values of each of these attributes based upon the current settings when the element is added to the design file There are tools to allow the user to change any of the attribute values The Cells menu allows the user to attach and detach cell libraries a file containing a collection of cells and to select a cell for placement from among the cells in a cell library A cell is a collection of one or more MicroStation 95 elements that may be placed manipulated and deleted as one item You may have only one cell library attached at any one time Once a cell is placed you no longer need the cell library attached The Text menu provides for the selection of font height width line spacing single line justification multiline justification and other text attributes Additionally the Match push button allows the user to point at an existing text element in the design file and make the current settings equal to the selected element values The Settings menu contains the MicroStation 95 specific items Design File Level Snaps View Attributes and several others Take this opportunity to look at the menus under Settings D 5 a The Design File menu allows the user to set or change many categories D 5 b of items We have used the Design File men
64. e In addition to the ground the surface should include all other features that might obstruct the driver s view e g buildings Place the horizontal sight distance triangle for yield sign control and check for vertical obstructions within the horizontal sight distance triangle H 1 H 2 H 3 H 4 H 5 H 6 H 7 From the IGIDS Side Bar Menu select TOOLS gt Sight Dist gt Vertical gt Yield In response to the prompt DataPt identify yielding Inbound Lane in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the median lane of the leg nearest the bottom of the screen When DataPt Reset accept reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the lane In response to the prompt Key in Reset yielding Leg speed 48 km h reidentify in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field When DataPt Reset identify conflicting Leg reidentify inbound lane appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the leg nearest the right of the screen In response to the prompt DataPt Reset accept reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the leg Wh
65. e MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field A Double Solid Line of width 150 mm 5 9 in and color of Yellow should appear on the centerline of the leg nearest the bottom of the screen Repeat steps E 3 through E 6 for the blue centerline of the leg nearest the right of the screen for the blue centerline of the leg nearest the top of the screen and for the blue centerline of the leg nearest the right of the screen Add the lane striping F 1 In the IGIDS Striping dialog box set Type of Striping to Broken Line set Width in mm to 6 150 set Color to White set Reference Object Type to IGIDS Edge set Mode to Place and press the Start push button 81 F 2 F 3 F 4 F 5 F 6 IGIDS Striping dialog box When DataPt identify IGIDS Edge appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the lane line between the two lanes to the left of the centerline of the leg nearest the bottom of the screen The lane line should be highlighted In response to the prompt DataPt Reset accept reidentify in the MicroStation 95 Command Window Prompt Message field enter a Data point anywhere in the window to accept the lane line between the two lanes to the left of the centerline of the leg nearest the bottom of the screen When Keyin DataPt Trim length OVStart of stripe a
66. e for the appropriate data and prompt the user for any missing data IGIDS will then extract data from the IGIDS database and build the required input files for the software package that was selected The software package will be executed by the operating system as an external or background process and the user may use graphics engine commands to review the output When appropriate the software package output will be displayed by IGIDS CAUTION IGIDS takes control of the active graphics file and deletes everything except what is recognized as scratch graphics all graphics on levels 3 through 62 are controlled by IGIDS while level 2 is the scratch level IGIDS presents to the user an Alert Box Pressing the OK push button will allow IGIDS to continue whereas pressing the Cancel push button will cause IGIDS to exit without deleting any data IGIDS re creates graphics using IGIDS data rather than relying on stored graphics files Therefore at start up any graphics stored in the active file will be deleted The IGIDS design is created by user interaction or by importing a previously created design that is stored in a database file All needed graphics are drawn as a part of this process Existing nonIGIDS graphics should be accessed as a reference file Reference files should be attached so that their elements can be snapped to and located Upon ending IGIDS or ending MicroStation IGIDS determines whether any data have been modified si
67. ear on the curb lane of the leg nearest the bottom of the screen When DataPt Reset accept amp place three lens Face reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the curb lane of the leg nearest the right of the screen A three lens signal face will appear on the center lane of the leg nearest the right of the screen In response to the prompt DataPt Reset accept amp place three lens Face reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the center lane of the leg nearest the top of the screen A three lens signal face will appear on the curb lane of the leg nearest the right of the screen When DataPt Reset accept amp place three lens Face reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the curb lane of the leg nearest the top of the screen A three lens signal face will appear on the center lane of the leg nearest the top of the screen In response to the prompt DataPt Reset accept amp place three lens Face reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the center lane of the leg nearest the left of the screen A three lens signal face will appear on the curb lane of the leg nearest the top of the screen 61 E 9 E 10 When DataPt Res
68. en Key in Reset conflicting Leg speed 48 km h reidentify appears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field IGIDS will calculate and display the horizontal sight distance triangle for a passenger car Starting at the car on the inbound lane the path that the car would take from its position on the inbound lane to the conflict 47 H 8 H 9 H 10 point within the intersection is drawn Then the path that the car on the conflicting leg would take from its position on the conflicting leg to the conflict point within the intersection is drawn Finally a line is drawn from the driver s eye position within the car on the inbound lane to the front bumper position of the car on the conflicting leg The distance from the conflict point within the intersection to the front bumper position of the car on the inbound lane and to the car on the conflicting leg is calculated based upon the speeds specified and procedures in A Policy on Geometric Design of Highways and Streets 1990 and A Policy on Geometric Design of Highways and Streets 1994 American Association of State Highway and Transportation AASHTO In response to the prompt DataPt identify triangles for surface place a Data point on any of the triangles making up the pyramid When DataPt Reset accept triangles for surface reidentify appears in the MicroStatio
69. et accept amp place three lens Face reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the curb lane of the leg nearest the left of the screen A three lens signal face will appear on the center lane of the leg nearest the left of the screen In response to the prompt DataPt Reset accept amp place three lens Face reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the lane A three lens signal face will appear on the curb lane of the leg nearest the left of the screen F Place a three lens with protected left turn signal face for each left turn lane F 1 F 2 F 3 F 4 F 5 F 6 From the IGIDS Side Bar Menu select TOOLS gt Traffic gt Signal Face gt three lens PL In response to the prompt DataPt identify Inbound Lane in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the left turn lane of the leg nearest the bottom of the screen When DataPt Reset accept amp place three lens Prot Left reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the left turn lane of the leg nearest the right of the screen A three lens with protected left turn signal face will appear on the left turn lane of the leg nearest the bottom of the screen In response to
70. ey in the MicroStation 95 Command Window Key in field In Window 1 Top View press the Fit View icon In Window 1 Top View press the Zoom In icon Repeat this procedure two times move the cursor in Window 1 Top View so that the upper left corner of the zoom in rectangle is just to the upper left of the center of the intersection and press the Data button In the Zoom In dialog box change 2 0 to 1 6 move the cursor in Window 1 Top View so that the upper left corner of the zoom in rectangle is just to the upper left of the center of the intersection press the Data button and in the Zoom In dialog box change 1 6 back to 2 0 Place a pretimed signal controller F 1 F 2 F 3 F 4 From the IGIDS Side Bar Menu select Tools gt Traffic gt Controller gt Pretimed When DataPt locate Pretimed controller is shown in the MicroStation 95 Command Window Prompt Message field enter xy 5013 4987 plus a carriage return in the MicroStation 95 Command Window Key in field In response to the prompt Key in angle for controller 0 00 in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field This angle defines the rotational angle for the traffic signal controller box where East is 0 and counterclockwise is positive When Key in number of pretimed controller phases appears in the MicroStation 95 Command Window
71. g Manual Research Report Number 0 1291 1 Center for Transportation Research The University of Texas at Austin Austin Texas January 1998 MicroStation Customer Support Library Reference Manual Version 4 for Clix DOS and MAC Document DSYS11540 Bentley Systems Inc and Intergraph Corporation l 1990 MicroStation User s Guide Version 4 for Clix Document DGA051410 Bentley Systems Inc and Intergraph Corporation 1991 MicroStation Reference Guide Version 4 for Clix Document DGA051710 Bentley Systems Inc and Intergraph Corporation 1991 MicroStation MDL Manual Version 4 for DOS Document DGA022410 Bentley Systems Inc and Intergraph Corporation 1991 MicroStation User s Guide Version 5 Document DGA0514110 Bentley Systems Inc and Intergraph Corporation September 1993 MicroStation Reference Guide Version 5 Document DGA054210 Bentley Systems Inc and Intergraph Corporation September 1993 MicroStation Development and Support Guide Version 5 Document DGA054310 Bentley Systems Inc and Intergraph Corporation September 1993 MicroStation MDL Programmer s Guide Version 5 Document DGA055010 Bentley Systems Inc and Intergraph Corporation November 1993 MicroStation MDL Function Reference Manual Version 5 Document DGA055110 Bentley Systems Inc and Intergraph Corporation December 1993 97 13 14 15 16 17 18 19
72. h 62 giving the user the 27 B 2 choice to continue OK or stop Cancel To continue press the OK push button when the Alert dialog box appears When ready IGIDS will report IGIDS V lt vn gt S lt sn gt Ready lt units gt Units in the MicroStation 95 Command Window Command Message field where lt vn gt is the IGIDS Version Major and Minor Number where lt sn gt is the IGIDS Structure Number and lt units gt is either English or Metric The structure number and lt units gt of a saved IGIDS database must match the structure number of IGIDS being executed and the current lt units gt of the design file to be loaded by IGIDS An IGIDS Side Bar Menu will appear Drag the IGIDS Side Bar Menu to the upper left corner of the MicroStation window close all other MicroStation 95 windows except Window 1 and resize Window 1 to not overlap the IGIDS Side Bar Menu Place an intersection that is typical of those found in many areas C 1 From the IGIDS Side Bar Menu select LOADFROM gt STANDARD gt 4x4 C2 C3 When DataPt Reset Alternative center end command is shown in the MicroStation 95 Command Window Prompt Message field enter xy 5000 5000 plus a carriage return in the MicroStation 95 Command Window Key in field This entry tells MicroStation 95 that the intersection should be centered at an x coordinate of 5000 meters and y coordinate of 5000 meters When Key in Alter
73. he color of the three lens with protected left signal face on the left turn lane of the leg nearest the bottom of the screen and the three lens with protected left signal face on the left turn lane of the leg nearest the top of the screen will be changed to white When Key in phase number 1 appears in the MicroStation 95 Command Window Prompt Message field enter 2 plus a carriage return or enter key in the MicroStation 95 Command Window Key in field In response to the prompt DataPt Reset id sig hd or chan sym to add reenter in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens signal face on the center lane of the leg nearest the bottom of the screen 63 G 9 G 10 G 12 G 13 G 14 6 15 G 16 When DataPt Reset accept amp id item to add remove reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens signal face on the curb lane of the leg nearest the bottom of the screen The color of the three lens signal face on the center lane of the leg nearest the bottom of the screen will be changed to green In response to the prompt DataPt Reset accept amp id item to add remove reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens signal face on the center lane of the leg nearest the top of the screen The color of the three lens
74. he stop line of the median lane of the leg nearest the bottom of the screen When DataPt Reset accept reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the lane In response to the prompt DataPt Reset identify conflicting Leg reidentify inbound lane appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the leg nearest the right of the screen F 6 When DataPt Reset accept reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the leg F 7 In response to the prompt Key in Reset conflicting Leg speed 48 F 8 km h reidentify in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field When Key in DataPt Reset stopped bumper pos 0 M reidentify appears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field IGIDS will calculate and display the horizontal sight distance triangle for a passenger car with its front bumper at the stop line Starting at the car on the inbound lane the path that the car would take from its position on the inbound lane to the conflict point within the intersection is drawn Then the path that the c
75. hoice to continue OK or stop Cancel The Snaps menu contains Button Bar Nearest Keypoint Midpoint Center Origin Bisector and Intersection The Button Bar creates a Snap Mode toolbox that can be moved around the window or docked along any edge The Nearest Snap uses the closest points on elements The Keypoint Snap uses predefined keypoints on elements The Midpoint Snap uses the midpoints of elements and segments of elements The Center Snap uses the centers and centroids of elements The Origin Snap uses the origins of cells The Bisector Snap uses the midpoints of entire elements The Snap Modes constrain an element to Intersection intersect another element with the point of intersection at its starting or ending point Tangent be tangent to another element Tangent From be tangent to another element with the point of tangency at its starting or ending point Perpendicular be perpendicular to another element Perp From be perpendicular to another element with the point of intersection at its starting or ending point Parallel be parallel to another element Through Point pass through a particular point on the design plane and Point On start or end on another element The View Attributes menu allows the user to control whether Construction elements are displayed or hidden whether Fill is active or inactive shapes are filled whether the Grid i
76. ia McTrans Ref 33 in the future The ftp site can be accessed by an Internet browser at ftp ftp ce utexas edu ftp igids or by the ftp program at ftp ce utexas edu changing the directory to igids The igids directory contains documentation dos and winnt sub directories The dos directory contains ustn40 ustn50 and ustn95 subdirectories The winnt directory contains ustn50 and ustn95 sub directories IGIDS uses a graphics engine MicroStation to perform all interactive graphics operations and to maintain the graphics engine database IGIDS software operates above and drives the graphics engine through a higher level language interface IGIDS allows the user to switch easily between IGIDS commands and graphics engine commands The commands available within the graphics engine are used for this purpose as much as possible IGIDS does not provide any plotting capabilities relying instead on the graphics engine to perform these operations IGIDS accommodates up to fifteen alternative designs for an intersection Existing intersection conditions will normally constitute one alternative Each alternative and its major graphical component groupings is placed on separate graphical levels or planes so that it can be displayed independently or not displayed in a particular view by the graphics engine IGIDS allocates a user graphical level or plane and allocates a scratch graphical level or plane All or part of an intersection alternative can be c
77. ials AASHTO 1990 A Policy on Geometric Design of Highways and Streets 1994 American Association of State Highway and Transportation Officials AASHTO 1994 Metric 1980 Texas Manual on Uniform Traffic Control Devices for Streets and Highways Texas State Department of Transportation Austin Texas 1980 with Revision 6 1996 Highway Capacity Manual Special Report 209 Transportation Research Board National Research Council Washington D C Third Edition 1994 Vehicle Turning Characteristics For Use In Geometric Design Geometric Design Section Highway Design Division State Department of Highways and Public Transportation Austin Texas 1987 GEOPAK GEOPAK Corporation North Miami Beach Florida 1996 McTrans Newsletter Center for Microcomputers in Transportation Transportation Research Center University of Florida Gainesville Florida 1997 99 100 APPENDIX The following presents the Microsoft PowerPoint slides delivered with the Training Manual 101 102 eractive Graphics Intersection Design System Robert F Inman Randy B Machemehl Clyde E Lee The University of Texas at Austin Center for Transportation Research CTR and Texas Department of Transportation TxDOT Assists engineers in the analysis and design of isolated at grade intersections n Operates on personal computers and workstations with MicroStation m Provides the Intersection Design Engineer with su
78. icroStation 95 and create a 2D design file ex_nema dgn using the seed file train2d dgn Al A 2 A 3 AA AS A 6 AT A 8 From the Windows NT Start Menu in the lower left comer of the screen choose Start gt Programs gt MicroStation95 gt MicroStation95 From the MicroStation 95 Manager dialog box choose Style gt Command Window From the MicroStation 95 Manager dialog box choose File gt New From the Create Design File dialog box choose Select within the Seed File group From the Select Seed File dialog box under Directories make sure your er igids directory is selected then under Files choose train2d dgn and finally press the OK push button From the Create Design File dialog box under Directories make sure your er igids directory is selected then under Files enter ex_nema and finally press the OK push button From the MicroStation 95 Manager dialog box under Directories make sure your c igids directory is selected then under Files select ex_nema dgn and finally press the OK push button If a MicroStation 95 Restricted Use dialog box appears for Academic Edition drag the MicroStation 95 Restricted Use dialog box off the screen 59 Start IGIDS B 1 B 2 Place CL C2 C 3 C 4 Place D 1 D 2 D 3 D 4 In the MicroStation 95 Command Window Key in field enter mdl load igids Press the O
79. icroStation 95 window or view will resize either the horizontal and vertical dimensions of the MicroStation 95 window or view D 12 b The slider along the right border of a MicroStation 95 window or view allows the user to pan the design file in the vertical direction using either the up arrow slider button or the down arrow D 12 c The bar and slider along the bottom border contains from left to right the Update View icon a paint brush paint or redraw the Zoom In icon a sign increase magnification the Zoom Out icon a sign decrease magnification the Window Area icon zoom in by rectangle the Fit View icon view all elements the Rotate View icon the Pan View icon the View Previous icon the View Next icon the left arrow the slider button and the right arrow The bar along the bottom edge of a MicroStation 95 window or view applies only to the single MicroStation 95 window or view E Use MicroStation 95 to Draw a Leg Centerline E 1 Set the element attributes E 1 a Select the Active Color icon leftmost icon from the MicroStation 95 E l c Primary Tools menu at the top and choose the yellow color color 4 The Active Color icon should now be colored yellow Select the Active Level icon next icon to the right from the MicroStation 95 Primary Tools menu at the top and choose level 2 level 2 The Active Level icon should now have 2 displayed on its left side Select the Ac
80. imed controllers m An inventory or bill of materials for traffic control features can be requested in printed or spreadsheet compatible input file format CAD Engine Use Relational Hierarchical Geometry IGIDS Object Data stored using double precision floating point numbers m Save and load IGIDS object data m Create graphics from IGIDS object data m Develop Internal Analysis Tools m Interface to External Analysis Tools IDS Built in Analysis Tools Vehicle turning templates for the standard AASHTO vehicles orizontal sight distance checking stop sign controlled yield sign controlled uncontrolled m Vertical sight obstruction checking within the horizontal sight distance triangle using a Digital Terrain Model DTM triangle file IDS Data Manipulation Tools i IGIDS prepares data file hat are executed outside IGIDS and then brings the results back into IGIDS TEXAS Model for intersection Traffic TEXAS Signal Operations Analysis Package SOAP TxDOT Automated Plan Preparation Systern APP croStation as a CAD Standard MicroStation is a Computer Aided rafting CAD software package by entley Systems Inc m MicroStation is the CAD standard currently implemented by the Texas Department of Transportation TxDOT m MicroStation is used by virtually every State DOT in the United States roStation as a CAD Standard a MicroStation is used world
81. individual sight lines are obstructed Several viewing options are provided A Start MicroStation 95 and create a 3D design file train3d dgn using the seed file seed3d dgn A 1 From the Windows NT Start Menu in the lower left corner of the screen choose Start gt Programs gt MicroStation95 gt MicroStation95 A 2 From the MicroStation 95 Manager dialog box choose Style gt Command Window A 3 From the MicroStation 95 Manager dialog box choose File gt New A 4 From the Create Design File dialog box choose Select within the Seed File group A 5 From the Select Seed File dialog box under Directories select the device and directory for MicroStation 95 normally c win32app microstation then select the directory for wsmod default seed then under Files select seed3d dgn Finally press the OK push button A 6 From the Create Design File dialog box under Directories make sure your e igids directory is selected then under Files enter train3d and finally press the OK push button A 7 From the MicroStation 95 Manager dialog box under Directories make sure your e igids directory is selected then under Files select train3d dgn and finally press the OK push button 43 A 8 If a MicroStation 95 Restricted Use dialog box appears for Academic Edition drag the MicroStation 95 Restricted Use dialog box off the screen B Set the MicroStation 95 Design File
82. itable tools to assist with each intersection design stage IDS Drawing Tools MicroStation used as a graphics engine to perform all graphics input and output Standard intersection layouts library that can be drawn and modified m Intersection geometry defined by existing MicroStation graphics m intersection geometry defined by user key in of data OT IGIDS Research Project 0 1139 9 88 to 991 initial design and development using MicroStation Clix V4 u Project 0 1308 9 97 to 9 93 additional features using MicroStation Clix V4 m Project 0 1308 9 93 to 9 94 extension conversion to MicroStation DOS V4 MDL m Project 0 1291 9 95 to 9 97 metrication vertical sight distance striping traffic control bill of materiais and develop training u Drawing and Manipulation Tools Built in Analysis Tools m Data Manipulation Tools Model for Intersection Traffic data files Intersection defined by loading a previously saved IGIDS database m Traffic signs signals and striping placed by the user 2 IDS Manipulation Tools Add copy delete rotate and modify intersection geometric components Enter and modify traffic data u Enter and modify traffic controller phasing and timing m Add remove and modify curb returns IDS Built in Analysis Tools Procedures of the 1994 Highway Capacity Manual Chapter 9 Signalized Intersections may be used to find v c ratios and delays for intersections with pret
83. ithin the Seed File group A 5 From the Select Seed File dialog box under Directories make sure your e igids directory is selected then under Files choose train2d dgn and finally press the OK push button A 6 From the Create Design File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_soap and finally press the OK push button A 7 From the MicroStation 95 Manager dialog box under Directories make sure your e igids directory is selected then under Files select ex_soap dgn and finally press the OK push button 75 A 8 If a MicroStation 95 Restricted Use dialog box appears for Academic Edition drag the MicroStation 95 Restricted Use dialog box off the screen Start IGIDS B 1 In the MicroStation 95 Command Window Key in field enter mdl load igids Press the OK push button when the IGIDS Alert dialog box appears B 2 Drag the IGIDS Side Bar Menu to the upper left corner of the MicroStation window Load the saved IGIDS database ex_pts dbs C 1 From the IGIDS Side Bar Menu select LOADFROM gt DATABASE C 2 In the Intersection database filename dialog box under Directories make sure your e igids directory is selected then under Files choose ex_pts dbs and finally press the OK push button C 3 In Window 1 press the Fit View icon In Window 1 press the Zoom In icon Repeat this procedure f
84. l Guide to Data Entry Research Report 361 1F CTR 3 18 84 361 1F Center for Transportation Research The University of Texas at Austin Austin Texas November 1985 Lee Clyde E Randy B Machemehl and Wiley M Sanders TEXAS Model Version 3 0 Diamond Interchanges Research Report 443 1 F Center for Transportation Research The University of Texas at Austin Austin Texas January 1989 Rioux Thomas W Simulation of Diamond Interchange Traffic Operations 70th Annual Meeting of the Transportation Research Board Washington D C January 1991 Rioux Thomas W Robert Inman Randy B Machemehl and Clyde E Lee Texas Model for Intersection Traffic Additional Features Research Report 1258 1F CTR 3 18 91 2 1258 1F Center for Transportation Research The University of Texas at Austin Austin Texas January 1993 98 24 25 26 27 28 29 30 31 32 33 SOAP84 User s Manual FHWA IP 85 7 Federal Highway Administration U S Department of Transportation January 1985 SOAP84 Data Input Manual FHWA IP 85 8 Federal Highway Administration U S Department of Transportation January 1985 Supplement to SOAP84 User s Manual FHWA IP 85 7 Transportation Research Center University of Florida Gainesville Florida September 1988 A Policy on Geometric Design of Highways and Streets 1990 American Association of State Highway and Transportation Offic
85. l highlight the second line and construct and highlight a 500 meter circular fillet and finally press the Data button anywhere to accept 24 the fillet In Window 1 press the Update View icon both lines and the arc of a circle should be visible Close the Modify palette by selecting the X in the upper right corner F Save the MicroStation 95 design file settings F 1 Choose MicroStation 95 File gt Save Settings G Plot the drawing G 1 Choose MicroStation 95 File gt Print Plot From the Plot dialog box choose File gt Preview From the Plot Preview dialog box choose Setup gt Page In the Print Setup dialog box in the Printer group choose a Name in the Orientation group choose Landscape and press the OK push button From the Plot Preview dialog box choose File gt Plot Get your plot from the printer and check your plot Close the Plot dialog box by selecting the X in the upper right corner 25 Leg Centerline Plot H Exit MicroStation 95 H 1 Choose MicroStation 95 File gt Exit 26 SIMPLE EXAMPLE Objective Create the graphics for a simple example Activity Become comfortable with IGIDS by stepping through a simple example that describes how to load a standard 4x4 intersection Background Intersection analysis begins by defining the geometry of the intersection Several common intersections are available for loading as a beginning step in the analysis process A Start Mic
86. lar to docking the Primary Tools Standard Tools and Main menus The 3D View Control menu contains from left to right Zoom In Out Change View Perspective Set Display Depth Set Active Depth Show Display Depth Show Active Depth Change View Rotation Camera Settings and Render To utilize the IGIDS Vertical Sight Distance command you must be in a 3D design file and may need to set display depth to view the results This will be covered in the training session on Vertical Sight Distance 19 D 7 The Utilities menu contains the MicroStation 95 specific items Key in Install Fonts MDL Applications and several others Take this opportunity to look at the menus under Utilities D 7 a The Key in dialog box allows the user to enter a MicroStation 95 command in the top field to select a MicroStation 95 command from the hierarchical list of commands in the middle fields or to select a MicroStation 95 command from the list of recent key in commands in the bottom field When you started MicroStation 95 we had you choose Style gt Command Window The left side bottom row of the Command Window is the Key in field and it provides the same functionality as the top field in the Key in dialog box In the top field in the Key in dialog box you may enter up arrow and down arrow keys for command recall and selection and enter the home end delete backspace left arrow and right arrow keys for command editing D 7 b The Ins
87. lert dialog box appears B 2 Drag the IGIDS Side Bar Menu to the upper left corner of the MicroStation window Load the saved IGIDS database ex_pts dbs C 1 From the IGIDS Side Bar Menu select LOADFROM gt DATABASE C 2 In the Intersection database filename dialog box under Directories make sure your c igids directory is selected then under Files choose ex_pts dbs and finally press the OK push button C 3 In Window 1 press the Fit View icon In Window 1 press the Zoom In icon Repeat this procedure four times move the cursor in Window 1 so that the center of the zoom in rectangle is near the center of the intersection and press the Data button Save the MicroStation 95 design file settings D 1 Choose MicroStation 95 File gt Save Settings Plot the drawing E 1 Choose MicroStation 95 File gt Print Plot From the Plot dialog box choose File gt Preview From the Plot Preview dialog box choose Setup gt Page In the Print Setup dialog box in the Printer group choose a Name in the Orientation group choose Landscape and press the OK push button From the Plot Preview dialog box choose File gt Plot Get your plot from the printer and check your plot Close the Plot dialog box by selecting the X in the upper right corner 72 l yA as _ 8 Sao og Ben ne ee a an une a m Po L aeae h
88. mand Window Key in field 91 F 5 F 6 F 7 F 8 F 9 When Keyin Leg description appears in the MicroStation 95 Command Window Prompt Message field enter Leg 5 plus a carriage return or the enter key in the MicroStation 95 Command Window Key in field In response to the prompt DataPt identify line or arc to add to Centerline in the MicroStation 95 Command Window Prompt Message field place a Data point on the line from the reference file closest to the intersection center The line should be highlighted When DataPt Reset accept and add to Centerline reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the are from the reference file The line should be added to the centerline and the arc should be highlighted In response to the prompt DataPt Reset accept and add to Centerline reidentify place a Data point on the line from the reference file farthest from the intersection center The arc should be added to the centerline and the line should be highlighted When DataPt Reset accept and add to Centerline reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the line The line should be added to the centerline Add inbound lanes by key in G 1 From the IGIDS Side Bar Menu select ADD gt LANE INBND gt BY KEY G 2 G 3 G 4 GS IN In res
89. mmand Window Key in field 93 H 7 H 8 When Keyin DataPt width of one Lane 3 6 all Lanes appears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or enter key in the MicroStation 95 Command Window Key in field In response to the prompt Keyin DataPt Lane length 299 25 enter a carriage return or enter key in the MicroStation 95 Command Window Key in field Add a curb lane curb return by keyin EL 1 2 1 3 From the IGIDS Side Bar Menu select ADD gt CURB CR gt BY KEY IN In response to the prompt DataPt Reset accept reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the highlighted leg When Keyin Reset curb return radius min 0 10M reidentify appears in the MicroStation 95 Command Window Prompt Message field enter 6 1 plus a carriage return or enter key in the MicroStation 95 Command Window Key in field Save the MicroStation 95 design file settings J 1 Choose MicroStation 95 File gt Save Settings Plot the drawing K 1 Choose MicroStation 95 File gt Print Plot From the Plot dialog box choose File gt Preview From the Plot Preview dialog box choose Setup gt Page In the Print Setup dialog box in the Printer group choose a Name in the Orientation group choose Landscape and press the OK push button From the Plot Preview dialog box choose File gt Plot Ge
90. mmand Window Prompt Message field place a Data point on the stop line of the curb lane of the leg nearest the top of the screen A three lens signal face will appear on the curb lane of the leg nearest the right of the screen When DataPt Reset accept amp place 3 Lens Face reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the curb lane of the leg nearest the left of the screen A three lens signal face will appear on the curb lane of the leg nearest the top of the screen In response to the prompt DataPt Reset accept amp place 3 Lens Face reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the lane A three lens signal face will appear on the curb lane of the leg nearest the left of the screen Define the pretimed traffic signal controller phasing with northbound and southbound in phase 1 and westbound and eastbound in phase 2 F 1 F 2 F3 From the IGIDS Side Bar Menu select TOOLS gt Traffic gt Controller gt Phasing In response to the prompt Key in phase number 1 in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field When DataPt Reset id sig hd or chan sym to add reenter appears in the MicroStation 95 Command Window Prompt Message field place a Data
91. n list of alternatives and intersection data m Alternative maximum of 15 list of legs list of text and alternative data IDS Alternative list of centerline segments inbound lanes outbound lanes inner edge curb return segments and outer edge curb return segments and leg data DS Text on Alternative DS Leg Centerline DS Hierarchical Objects ist of inner edge segments outer edge segments stop line segments inner edge striping segments outer edge striping segments stop line striping segments and other striping segments and lane data DS Lane Inner Edge Segment HDS Hierarchical Objects Segment arc or line list of text and segment data u Text text data IDS Lane Outer Edge Segment DS Outer Edge Curb Return DS Internal Analysis Tools Vehicle turning templates TXTOM Horizontal sight distance checking for stop yield and uncontrolled conditions m Vertical sight distance checking within the horizontal sight triangle a Highway Capacity Manual Chapter 9 analysis for signalized intersections a Bill of Materials for traffic control features rizontal Sight Distance Checking e and Load IGIDS Load IGIDS object data from a library of standard intersection layouts m Load IGIDS object data from an IGIDS database of previously saved IGIDS object data m Save IGIDS object data to an IGIDS database tical Sight Distance Checking Dependent on Terr
92. n 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the triangles In the Vertical Sight Distance dialog box for Inbound Leg 3 set Station to 0 0 set Elevation to 98 0 set Grade to 1 5 and set Crosslope to 2 0 for Conflicting Leg 2 set Station to 0 0 set Elevation to 98 0 set Grade to 2 0 and set Crosslope to 2 0 set Elevation of top of traffic contro box to 103 0 set Sight Line Spacing to 1 0 meters set Driver Eye Height to 1 07 meters set Object Height to 0 15 meters in the Viewing Options group set Unobstructed lines on an X in the box to the left and the color to blue color 1 set Lines before obstruction on and the color to white color 0 set Lines through obstruction on and the color to yellow color 4 set Lines behind obstruction on and the color to red color 3 and set Draw traffic control box on and the color to green color 2 and finally press the OK push button These same settings may also be used to check the no control and stop sign controlled vertical sight distance 48 Vertical Sight Distance dialog box Save the MicroStation 95 design file settings I 1 Choose MicroStation 95 File gt Save Settings Plot the drawing 3 1 Choose MicroStation 95 File gt Print Plot From the Plot dialog box choose File gt Preview From the Plot Preview dialog box choose Setup gt Page In the Print Setup dialog box in the Printer group choose a Name
93. native number 1 appears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field This selects the default alternative number 1 IGIDS will then draw the graphics that represent this alternative In Window 1 press the Fit View icon the fifth icon from the left The intersection should be visible Save the MicroStation 95 design file settings D 1 Choose MicroStation 95 File gt Save Settings Plot the drawing E 1 Choose MicroStation 95 File gt Print Plot From the Plot dialog box choose File gt Preview From the Plot Preview dialog box choose Setup gt Page In the Print Setup dialog box in the Printer group choose a Name in the Orientation group choose Landscape and press the OK push button From the Plot Preview dialog box choose File gt Plot Get your plot from the printer and check your plot Close the Plot dialog box by selecting the X in the upper right corner 28 Standard 4X4 Standard 4X4 Fund u Simple Example Plot Save the intersection to a database file for later use F 1 From the IGIDS Side Bar Menu select SAVE TO gt Data Base F 2 In the IGIDS Database File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_4x4 Finally press the OK push button IGIDS will save the intersection data to the file ex
94. nce any LOAD FROM gt DATABASE command or since the last SAVE TO gt DATABASE command if modifications have been made the program presents an Alert Box Pressing the OK push button will allow IGIDS to perform a SAVE TO gt DATABASE command whereas pressing the Cancel push button will cause IGIDS to exit without saving the data 11 INTRODUCTION TO MICROSTATION 95 Objective Learn the basics of MicroStation 95 required to operate IGIDS Activity Learn basics of MicroStation 95 by creating a 2D training seed file reviewing MicroStation 95 commands menus and dialog boxes and drawing a simple leg centerline The 2D training seed file will be used for most examples The leg centerline will be used in the Add Leg example Background MicroStation 95 is a computer aided drafting CAD software package IGIDS is an MDL application that runs on MicroStation 95 Some knowledge of MicroStation 95 is required to operate IGIDS A Start MicroStation 95 and create a 2D design file train2d dgn using the seed file seed2d dgn A A 2 A 3 AA A 5 A 6 AN A 8 From the Windows NT Start Menu in the lower left corner of the screen choose Start gt Programs gt MicroStation95 gt MicroStation95 From the MicroStation 95 Manager dialog box choose Style gt Command Window From the MicroStation 95 Manager dialog box choose File gt New From the Create Design File dialog b
95. neate where it is permissible for traffic to travel and cross IGIDS provides for the placement and bill of materials for the following traffic control devices yield sign stop sign three lens signal head three lens protected left signal head left turn channelization arrow straight movement channelization arrow right turn channelization arrow U turn channelization arrow pretimed controller NEMA controller solid line striping broken line striping dotted line striping lane drop striping no passing inbound striping no passing outbound striping double solid line striping and double broken line striping An inventory or bill of materials for traffic control features can be requested in printed or spreadsheet compatible input file format A Start MicroStation 95 and create a 2D design file ex_strp dgn using the seed file train2d dgn A l From the Windows NT Start Menu in the lower left corner of the screen choose Start gt Programs gt MicroStation95 gt MicroStation95 A 2 From the MicroStation 95 Manager dialog box choose Style gt Command Window A 3 From the MicroStation 95 Manager dialog box choose File gt New A 4 From the Create Design File dialog box choose Select within the Seed File group A 5 From the Select Seed File dialog box under Directories make sure your e igids directory is selected then under Files choose train2d dgn and finally press the OK push button A 6 From the Cre
96. neee ne Sistas 71 Add Leg E E T E A A E EEEE senti OD References ee PEA E E E aeara an ni enge 97 i 1 ABER enden ee ee een 10 vi OVERVIEW OF THE INTERACTIVE GRAPHICS INTERSECTION DESIGN SYSTEM IGIDS Intersection design is a complex process that involves many different skills Elements of transportation planning traffic engineering and geometric design contribute to the process of designing the most practicable facility for intersection traffic Traditionally the design engineer has relied upon the application of manual or sometimes computer aided procedures to determine the most appropriate alternative that satisfies the objectives The process involves geometric layout traffic analysis channelization selection and placement of traffic control devices timing of traffic signals lighting drainage fuel consumption evaluation pollution analysis cost estimating and other engineering functions that are eventually reduced to practice in a set of plans and specifications Virtually all the engineering and analysis procedures needed to complete the design process are well known and documented The Interactive Graphics Intersection Design System IGIDS a software package that operates on personal computers and workstations assists engineers in the analysis and design of isolated at grade intersections IGIDS was created to provide the intersection design engineer with suitable tools to assist with each process stage These
97. nits per master unit and in the Pos Units Per lt sub units gt box enter an appropriate number Please check with your Graphics Coordinator for appropriate values for these settings This IGIDS Training Course is based on metric units so enter m in the Master Units box and enter mm in the Sub Units box Also enter 1000 in the mm Per m box and enter 100 in the Pos Units Per mm box In the Design File Settings dialog box press the OK push button An Alter dialog box may appear warning you that Changing your Working Units will change the size of existing elements press the OK push button From the MicroStation 95 dialog box choose Settings gt View Attributes In the View Attributes dialog box set Dynamics on Fast Cells off Fast Curves off Fast Font off Fill on Level Symbology off Line Styles on Line Weights on Text on press the All button and close the View Attributes dialog box B 10 From the MicroStation 95 Main menu choose the Delete Element icon bottom left icon then place a Data point on the cube in Window 2 Isometric View and finally place a Data point anywhere in the window to accept the element for deletion B 11 Close Window 2 Isometric View Window 3 Front View and Window 4 Right View by selecting the X in the upper right corner in each window B 12 In Window 1 Top View move the cursor to the bottom right corner of the window until the double headed 45 degree angle ar
98. no need for a Save button D 2 a Compress Design is used to physically delete MicroStation 95 elements that have been marked for deletion by the user D 2 b Save Settings saves the current MicroStation 95 settings in the current design file so that when the file is entered again the same views levels etc are restored D 2 c Reference allows the user to attach detach and manipulate reference files Up to 256 reference files may be attached to a single design file for read only access to the data The reference files may be other MicroStation 95 design files or raster files D 2 d Print Plot allows the user to generate hard copy output of the design file D 2 e Page Setup allows the user to specify the hard copy output device and characteristics D 2 f Exit terminates your MicroStation 95 session 15 D 3 The Edit menu contains the MicroStation 95 specific items Undo Redo and numerous others Take this opportunity to look at the menus under Edit Undo allows the user to undo the last MicroStation 95 command Redo negates the last undo operation D 4 D 5 The Element menu contains the MicroStation 95 specific items Attributes Cells Text and several others Take this opportunity to look at the menus under Element D 4 a D 4 b D 4 c The Attributes menu allows the user to specify the Level or drawing plane 1 63 individual levels may be viewed or hidden at any tim
99. opied to another alternative and all or part of an intersection alternative can be modified by IGIDS commands In addition any number of reference files may be attached to the master design file by the graphics engine IGIDS can locate elements in these reference files to be added as graphics for IGIDS Finally the graphics engine may display a raster image a scanned photograph or other raster data IGIDS graphics will normally be two dimensional in plan view and will use a state plane coordinate system operating in English or metric units Coordinates distances and other real numeric data are stored as 16 significant digit 64 bit double precision floating point variables in the master units of the graphics engine feet or meters All angular data will be stored as the same type variables but in degrees All counter or indexing type numbers will be stored as ten significant digit 32 bit integer variables All other integer numbers with no perceived possibility of exceeding several hundred will be stored as five significant digit 16 bit integer variables IGIDS uses relational hierarchical geometry Relational geometry refers to the fact that the only absolute coordinate needed by IGIDS is the center of the intersection The legs of the intersection are defined relative to the intersection center the lanes of a leg are then defined relative to the leg s centerline and so on IGIDS data are stored as objects with IGIDS maintaining the
100. our times move the cursor in Window 1 so that the center of the zoom in rectangle is near the center of the intersection and press the Data button Save the MicroStation 95 design file settings D 1 Choose MicroStation 95 File gt Save Settings Plot the drawing E 1 Choose MicroStation 95 File gt Print Plot From the Plot dialog box choose File gt Preview From the Plot Preview dialog box choose Setup gt Page In the Print Setup dialog box in the Printer group choose a Name in the Orientation group choose Landscape and press the OK push button From the Plot Preview dialog box choose File gt Plot Get your plot from the printer and check your plot Close the Plot dialog box by selecting the X in the upper right corner 76 ie Ze I P O x YB COD ERBEN Soe TEN eet onan regen er i wesen 5 2 Oy Signal Operations Analysis Package SOAP Plot F Save the intersection to a database file for later use F 1 From the IGIDS Side Bar Menu select SAVE TO gt Data Base F 2 In the IGIDS Database File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_soap and finally press the OK push button IGIDS will save the intersection data to the file ex_soap dbs G Create and review a Signal Operations Analysis Package SOAP input file G 1 From the IGIDS Side Bar
101. own in the MicroStation 95 Command Window Prompt Message field enter xy 5013 4987 plus a carriage return in the MicroStation 95 Command Window Key in field In response to the prompt Key in angle for controller 0 00 in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field When Key in number of pretimed controller phases appears in the MicroStation 95 Command Window Prompt Message field enter a 2 plus a carriage return or the enter key in the MicroStation 95 Command Window Key in field 52 Place a three lens signal face for each leg El E 2 E 3 E 4 E 5 E 6 From the IGIDS Side Bar Menu select TOOLS gt Traffic gt Signal Face gt 3 Lens In response to the prompt DataPt identify Inbound Lane in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the curb lane of the leg nearest the bottom of the screen When DataPt Reset accept amp place 3 Lens Face reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the curb lane of the leg nearest the right of the screen A three lens signal face will appear on the curb lane of the leg nearest the bottom of the screen In response to the prompt DataPt Reset accept amp place 3 Lens Face reidentify in the MicroStation 95 Co
102. ox choose Select within the Seed File group From the Select Seed File dialog box under Directories select the device and directory for MicroStation 95 normally e win32app microstation then select the directory for wsmod default seed then under Files select seed2d dgn and finally press the OK push button From the Create Design File dialog box under Directories make sure your ex igids directory is selected then under Files enter train2d finally press the OK push button From the MicroStation 95 Manager dialog box under Directories make sure your e igids directory is selected then under Files select train2d dgn and finally press the OK push button If a MicroStation 95 Restricted Use dialog box appears for Academic Edition drag the MicroStation 95 Restricted Use dialog box off the screen 13 B Set the MicroStation 95 Design File Settings B 1 B 2 B33 B 4 B 5 B 6 B 7 From the MicroStation 95 dialog box choose Settings gt Design File In the Design File Settings dialog box under Category choose Active Angle In the Modify Active Angle Parameters area in the Active Angle box enter 0 0 In the Design File Settings dialog box under Category choose Active Scale In the Modify Active Scale area press the 1 0 button and ensure that the lock to the right of the X Scale and Y Scale boxes is in the locked position press the lock
103. parent child relationships among IGIDS objects IGIDS works by manipulating a defined set of objects There is a strict set of rules used by IGIDS that fixes the way that these IGIDS objects are related to each other Because the task of complying with these rules is assigned to IGIDS the user need not be concerned with the relationship details IGIDS defines the relative object for each type of IGIDS object IGIDS calculates the station and offset of a coordinate from the leg centerline for all items that are a child of the leg Only IGIDS commands can be used to manipulate the geometry because of the need to update the data in the IGIDS structures IGIDS minimizes forcing the user to enter data in a defined order or sequence To accomplish this objective IGIDS will automatically sort each list of children IGIDS objects as new children IGIDS objects are added to the list so that the user can enter geometry data items in any order IGIDS automatically sets the direction of any entered graphical IGIDS object so that it will conform with the sorted direction of the list of which it is a part Hierarchical geometry refers to the fact that the IGIDS objects are related in a parent child relationship Each IGIDS object will comprise only one parent IGIDS object and may have zero or more children IGIDS objects An IGIDS object can have different parent IGIDS object types with the type of parent being associated with the attributes of an IGIDS object Each IG
104. ponse to the prompt DataPt Reset accept reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the highlighted leg When Keyin Reset no new inb Lanes 1 reidentify appears in the MicroStation 95 Command Window Prompt Message field enter 2 plus a carriage return or enter key in the MicroStation 95 Command Window Key in field In response to the prompt Keyin number of left turn bays 0 in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field When Keyin number of right turn bays 0 appears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field 92 G 6 G 7 G 8 G 9 In response to the prompt Keyin DataPt setback to beginning of Lanes in the MicroStation 95 Command Window Prompt Message field enter 0 plus a carriage return or enter key in the MicroStation 95 Command Window Key in field When Keyin DataPt distance from CL 0 00 appears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or enter key in the MicroStation 95 Command Window Key in field In response to the prompt Keyin DataPt width of one Lane 3 6 all Lanes enter a carriage return or enter key in the MicroSt
105. ppears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field In response to the prompt Keyin DataPt Stripe length 243 84 in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field A Broken Line of width 150 mm 5 9 in and color of White should appear on lane line between the two lanes to the left of the centerline of the leg nearest the bottom of the screen Repeat steps F 2 through F 5 for lane line between the two lanes to the right of the centerline of the leg nearest the bottom of the screen for lane line between the two lanes to the left of the centerline of the leg nearest the right of the screen for lane line between the two lanes to the right of the centerline of the leg nearest the right of the screen for lane line between the two lanes to the left of the centerline of the leg nearest the 82 top of the screen for lane line between the two lanes to the right of the centerline of the leg nearest the top of the screen for lane line between the two lanes to the left of the centerline of the leg nearest the left of the screen and for lane line between the two lanes to the right of the centerline of the leg nearest the left of the screen G Add the edge striping G l G 2 G 3 G4 G 5 In the IGIDS Striping
106. ppropriate IGIDS structure where the attribute data will be stored The type of the graphics engine element arc line or text will be used to determine the item type segment or text and therefore relate it to the appropriate IGIDS structure The ID will be the entry number the instance number or the row number in the appropriate IGIDS structure Given an ID IGIDS can search the graphics engine database or access the appropriate IGIDS structure for the specified item The higher level grouping objects may not have a graphical representation During the design process the user may interact with IGIDS to modify the design as desired This interaction is through the graphics engine s user interface The user may 10 identify existing graphical elements specify geometric points and key in alphanumeric data all in response to IGIDS prompts All usual graphics engine functions are always available Graphics engine and IGIDS functions may be used in any desired sequence If there is a need to construct a feature that is beyond IGIDS s capability the graphics engine s tools may be used to create the feature as scratch graphics IGIDS can then inspect these scratch graphics and add the desired feature to the design Graphics on an existing drawing may be processed in a similar manner Intersection analysis and design software packages will be executed when the user selects from a menu the software package IGIDS will check its databas
107. r Directories make sure your e igids directory is selected then under Files enter ex_txtom and finally press the OK push button IGIDS will save the intersection data to the file ex_txtom dbs J Exit IGIDS J 1 From the IGIDS Side Bar Menu select END IGIDS K Exit MicroStation 95 K 1 Choose MicroStation 95 File gt Exit 35 36 HORIZONTAL SIGHT DISTANCE Objective Evaluate the horizontal sight distance for yield sign control no control and stop sign control Activity Place the horizontal sight distance triangle for yield sign control no control and stop sign control Background A Policy on Geometric Design of Highways and Streets 1994 by the American Association of State Highway and Transportation Officials defines procedures to calculate the required horizontal sight distance between adjacent legs of an intersection for yield sign control no control and stop sign control The area within this horizontal sight distance triangle must be clear of major sight obstructions to ensure safe operation of the intersection A Start MicroStation 95 and create a 2D design file ex_hsd dgn using the seed file train2d dgn A l From the Windows NT Start Menu in the lower left corner of the screen choose Start gt Programs gt MicroStation95 gt MicroStation95 A 2 From the MicroStation 95 Manager dialog box choose Style gt Command Window A 3 From the MicroStation 95 Manager dialog box
108. r retrieved The IGIDS database will be the master database All graphics and attribute data items will be contained in the IGIDS database and the value stored there will have precedence over any other value Thus the graphics engine database can be deleted or all of the graphics in the graphics engine database can be deleted or erased and IGIDS will be able to re create the graphics previously saved into an IGIDS database using the LOAD FROM gt DATABASE command Any graphics added by the user on the scratch level will be lost Any IGIDS vehicle turn template sight distance checking TEXAS Model statistics and Highway Capacity Manual Chapter 9 graphics will be lost but are easily re created from the IGIDS database information Coordinate distance angular and other data in the IGIDS database will be considered the definitive values IGIDS will always use the values in the IGIDS database for all calculations IGIDS will keep the entire IGIDS data base in memory so that no disk I O will be involved in reading a data item this will allow the software to operate as fast as possible IGIDS presents this design to the user as graphics displayed by the graphics engine The ID of each IGIDS object that is displayed segs and text is a part of the graphics engine s data and is used to link the graphics engine database with the IGIDS database Each IGIDS graphical item in the graphics engine database will contain the ID of the corresponding item in the a
109. raffic gt Controller gt Phasing In response to the prompt Key in phase number 1 in the MicroStation 95 Command Window Prompt Message field enter a carriage return or enter key in the MicroStation 95 Command Window Key in field When DataPt Reset id sig hd or chan sym to add reenter appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens with protected left signal face on the left turn lane of the leg nearest the bottom of the screen In response to the prompt DataPt Reset accept amp id item to add remove reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point on the three lens with protected left signal face on the left turn lane of the leg nearest the top of the screen The color of the three lens with protected left signal face on the left turn lane of the leg nearest the bottom of the screen will be changed to green When DataPt Reset accept amp id item to add remove reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the lane The color of the three lens with protected left signal face on the left turn lane of the leg nearest the top of the screen will be changed to green In response to the prompt DataPt Reset id sig hd or chan sym to add reenter in the MicroStation 95 Command Window Prompt Message field enter a Reset T
110. rate a vehicle turn template for a WB 60 18 truck with a turn radius of 14 meters 15 4 yards with a 0 2 meter 0 18 yard clearance zone and with a turn angle of 93 25 degrees rotate the vehicle turn template to the angle for the inbound leg place the outside front axle of the vehicle turn template at the stop line of the curb lane this will allow you to dynamically move the vehicle turn template Position the vehicle turn template so that the beginning of the yellow clearance line on the left of the vehicle turn template is touching the inner edge of the curb lane on the bottom leg and the highest point of the yellow clearance line is touching the inner edge of the curb lane on the right leg Press the data button to set the position You may continue to move the vehicle turn template by pressing the data button MicroStation 95 windowing commands may be executed while you are moving the vehicle turn template Press the Reset button when you are finished 33 F Modify the curb return radius for the leg F 1 E2 F 3 F 4 F 5 From the IGIDS Side Bar Menu select ADD gt CURB CR gt BY KEY IN IGIDS will highlight the last identified leg the leg on the right In response to the prompt DataPt Reset accept reidentify in the MicroStation 95 Command Window Prompt Message field press the Reset button When DataPt Reset identify Leg for adding Curb Return appears in the MicroStation 95 Command Window Prompt Me
111. ress the OK push button In the Character Mapping dialog box in the Font group choose 59 TrafficControl and in the Display Mode group choose the Label option Screen Font Notice the traffic signal heads defined under 3 20 4 and 5 a left turn arrow defined under Tl and L a NEMA traffic signal controller defined under n and N a pretimed traffic signal controller defined under p and P a right turn arrow defined under r and R a stop sign defined under s and S a through arrow defined under t and T a U turn arrow defined under u and U and a yield sign defined under y and Y Press the Done push button Finally press the x in the upper right corner of the MDL dialog box D 8 The Workspace menu contains the MicroStation 95 specific items Configuration Button Assignments and several other items Take this opportunity to look at the menus under Workspace D 8 a The Configuration dialog box allows the user to specify many MicroStation 95 parameters Select Workspace gt Configuration then under Category select All Alphabetical and then under View modify all configuration variables select IGIDS_PATH If IGIDS_PATH is not listed please contact your system administrator to rectify the problem IGIDS uses the value of IGIDS_PATH to locate where IGIDS is loaded on your computer The normal value for
112. return by key in Background Intersection analysis begins by defining the geometry of the intersection Several common intersections are available to load as a beginning step in the analysis process The intersection may then be modified to fit the particular problem Placing a standard intersection and then modifying the intersection is normally easier than creating an intersection from scratch IGIDS objects may be added by identifying graphics on the scratch level or in a reference file and by key in A Start MicroStation 95 and create a 2D design file ex_adleg dgn using the seed file train2d dgn A 1 From the Windows NT Start Menu in the lower left corner of the screen choose Start gt Programs gt MicroStation95 gt MicroStation95 A 2 From the MicroStation 95 Manager dialog box choose Style gt Command Window A 3 From the MicroStation 95 Manager dialog box choose File gt New A 4 From the Create Design File dialog box choose Select within the Seed File group A 5 From the Select Seed File dialog box under Directories make sure your e igids directory is selected then under Files choose train2d dgn and finally press the OK push button A 6 From the Create Design File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_adleg and finally press the OK push button A 7 From the MicroStation 95 Manager dialog box under Directories
113. rn or the enter key in the MicroStation 95 Command Window Key in field IGIDS will calculate and display the horizontal sight distance triangle for a passenger car Starting at the car on the first inbound lane the path that the car would take from its position on the first inbound lane to the conflict point within the intersection is drawn Then the path that the car on the second inbound lane would take from its position on the second inbound lane to the conflict point within the intersection is drawn Finally a line is drawn from the driver s eye position within the car on the first inbound lane to the driver s eye position within the car on the second inbound lane The distance from the conflict point within the intersection to the front bumper position of the car on the first inbound Jane and to the front bumper position of the car on the second inbound lane is calculated based upon the speeds specified and procedures in A Policy on Geometric Design of Highways and Streets 1990 and A Policy on Geometric Design of Highways and Streets 1994 American Association of State Highway and Transportation AASHTO Place the horizontal sight distance triangle for stop sign control F 1 F 2 F 3 F 4 From the IGIDS Side Bar Menu select TOOLS gt Sight Dist gt Horizontal gt Stopped In response to the prompt DataPt identify stopped Inbound Lane in the MicroStation 95 Command Window Prompt Message field place a Data point on t
114. roStation 95 and create a 2D design file ex_4x4 dgn using the seed file train2d dgn Al A 2 A 3 AA AS A 6 Ast AB From the Windows NT Start Menu in the lower left corner of the screen choose Start gt Programs gt MicroStation95 gt MicroStation95 From the MicroStation 95 Manager dialog box choose Style gt Command Window From the MicroStation 95 Manager dialog box choose File gt New From the Create Design File dialog box choose Select within the Seed File group From the Select Seed File dialog box under Directories make sure your c igids directory is selected then under Files choose train2d dgn and finally press the OK push button From the Create Design File dialog box under Directories make sure your cNigids directory is selected then under Files enter ex_4x4 Finally press the OK push button From the MicroStation 95 Manager dialog box under Directories make sure your c igids directory is selected then under Files select ex_4x4 dgn and next press the OK push button If a MicroStation 95 Restricted Use dialog box appears for Academic Edition drag the MicroStation 95 Restricted Use dialog box off the screen B Start IGIDS B 1 In the MicroStation 95 Command Window Key in field enter mdl load igids plus a carriage return IGIDS displays an Alert dialog box to notify the user that IGIDS will delete levels 3 throug
115. roaching an uncontrolled intersection may be drawn For vertical sight obstruction checking within the horizontal sight distance triangle the triangle file created from a Digital Terrain Model DTM must be attached as a reference file and the user must be in a 3D MicroStation design file Procedures of the 1994 Highway Capacity Manual Chapter 9 Signalized Intersections may be used to find v c ratios and delays for intersections with pretimed controllers IGIDS displays the v c ratios and delays in bar chart format for each leg An inventory or bill of materials for traffic control features can be requested in printed or spreadsheet compatible input file format Finally there are data manipulation tools that can be used first to prepare data files for analyses that are executed outside IGIDS and then to bring the results back into IGIDS The TEXAS Model for Intersection Traffic TEXAS the Signal Operations Analysis Package SOAP and the Texas Department of Transportation TxDOT Automated Plan Preparation System are supported by IGIDS The TEXAS Model provides microscopic simulation of vehicular traffic flow through a single intersection or a diamond interchange and generates both a statistical summary and animated graphics that show drawn to scale color coded vehicle types moving through the intersection geometry Selected TEXAS Model statistics may be displayed in bar chart format for each leg and for all intersection legs SOAP develop
116. row appears Then press and hold the cursor drag the cursor to the bottom right corner of the MicroStation 95 window and finally release the cursor button B 13 From the MicroStation 95 dialog box choose File gt Compress Design B 14 From the MicroStation 95 dialog box choose File gt Save Settings Save the design file as ex_vsd dgn C 1 From the MicroStation 95 dialog box choose File gt Save As In the Save Design As dialog box under Directories make sure your e igids directory is selected then under Files enter ex_vsd and finally press the OK push button Start IGIDS D 1 In the MicroStation 95 Command Window Key in field enter mdl load igids Press the OK push button when the IGIDS Alert dialog box appears D 2 Drag the IGIDS Side Bar Menu to the upper left corner of the MicroStation window and adjust Window 1 Top View to accommodate the IGIDS Side Bar Menu Place an intersection that is typical of those found in many areas E 1 From the IGIDS Side Bar Menu select LOADFROM gt STANDARD gt 4x4 E 2 When DataPt Reset Alternative center end command is shown in the MicroStation 95 Command Window Prompt Message field enter xy 5000 5000 plus a carriage return in the MicroStation 95 Command Window Key in field 45 E 3 When Key in Alternative number 1 appears in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter k
117. s and assesses isolated intersection signal timing plans Data for both the built in and external analyses are drawn from a common database that is maintained by IGIDS Many of these data are extracted from the graphical intersection geometry defined by the user Some nongraphical data such as traffic volumes must be entered through the keyboard IGIDS is a MicroStation MDL Application MicroStation is a computer aided drafting CAD software package created by Bentley Systems Inc and is the CAD standard currently used by TxDOT The user must have a working version of MicroStation to run IGIDS IGIDS is available for MicroStation Version 4 0 for DOS Windows and Clix for MicroStation Version 5 for DOS Windows Windows 95 Windows NT and Clix and for MicroStation 95 for DOS Windows and Windows 95 Windows NT IGIDS may be operated using English or metric units though once a project has been started in a given system of units the system of units may not be changed IGIDS may be operated using a 2D MicroStation design file except that a 3D file is required for vertical sight obstruction checking within the horizontal sight distance triangle To change the file format from 2D to 3D the user may save the IGIDS project to a database file enter a 3D file and load the project from the database file IGIDS is now available from The University of Texas at Austin s Civil Engineering Department s anonymous ftp site and will be available for access v
118. s displayed or hidden whether Line Styles are displayed whether Line Weights are displayed whether Text is displayed and other view attributed View 17 Attributes can be applied to the single selected View Number MicroStation 95 Window number using Apply or to All views D 6 The Tools menu contains the MicroStation 95 specific items Primary Standard Main 3D if the design file is 3D and numerous other tools Take this opportunity to look at the menus under Tools D 6 a D 6 b In the Tools menu if Primary does not have a check mark to its left then choose Primary The Primary Tools menu will appear Place the cursor on the top bar of the Primary Tools menu press and hold the left button drag the menu into the top of the MicroStation 95 window to the leftmost position under File and finally release the left button This action will dock the Primary Tools menu The Primary Tools menu contains items for active color level style and weight element information and AccuDraw D 6 a 1 Active Color specifies one of 255 colors 0 254 from an active Color Table The value in the Color Table specifies a 24 bit true color value 16 777 216 color combinations to be associated with the Active Color D 6 a 2 Active Level specifies one of 63 levels 1 63 or drawing planes Level segregates the data allowing the user to view or not view the data Individual levels may be viewed or hidden
119. ssage field place a Data point on the leg nearest the bottom of the screen In response to the prompt DataPt Reset accept reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the leg When Key in Reset curb return radius min 0 10 M reidentify leg appears in the MicroStation 95 Command Window Prompt Message field key in various values of the curb return radius until the bottom yellow clearance line is touching or is above the green curb return A value of 22 meters 20 yards may be acceptable G Save the MicroStation 95 design file settings G 1 Choose MicroStation 95 File gt Save Settings H Plot the drawing Hl Choose MicroStation 95 File gt Print Plot From the Plot dialog box choose File gt Preview From the Plot Preview dialog box choose Setup gt Page In the Print Setup dialog box in the Printer group choose a Name in the Orientation group choose Landscape and press the OK push button From the Plot Preview dialog box choose File gt Plot Get your plot from the printer and check your plot Close the Plot dialog box by selecting the X in the upper right corner 34 Vehicle Turn Template Plot I Save the intersection to a database file for later use I 1 From the IGIDS Side Bar Menu select SAVE TO gt Data Base I 2 In the IGIDS Database File dialog box unde
120. t Turn to 18 set Straight to 70 set Right Turn to 12 and set Total Volume to 750 vehicles per hour 56 H 5 In the Traffic Turn Movement Count dialog box for SB Leg 1 set U Turn to 0 Left Turn to 16 set Straight to 69 set Right Turn to 15 and set Total Volume to 770 vehicles per hour The OK push button will now be enabled H 6 In the Traffic Turn Movement Count dialog box press the OK push button Traffic Turn Movement Count dialog box Perform the Highway Capacity Manual Chapter 9 analysis for V C ratio I 1 From the IGIDS Side Bar Menu select TOOLS gt HighCapMan gt Chapter 9 12 In the IGDS Highway Capacity Manual Chapter 9 dialog box press the V C push button then press the Done push button Save the MicroStation 95 design file settings J 1 Choose MicroStation 95 File gt Save Settings Plot the drawing K 1 Choose MicroStation 95 File gt Print Plot From the Plot dialog box choose File gt Preview From the Plot Preview dialog box choose Setup gt Page In 57 the Print Setup dialog box in the Printer group choose a Name in the Orientation group choose Landscape and press the OK push button From the Plot Preview dialog box choose File gt Plot Get your plot from the printer and check your plot Close the Plot dialog box by selecting the X in the upper right corner x E S d N 1 em i ener ees ai NIS i i ade ae a
121. t your plot from the printer and check your plot Close the Plot dialog box by selecting the X in the upper right corner 94 Add Leg Plot L Save the intersection to a database file for later use L 1 From the IGIDS Side Bar Menu select SAVE TO gt Data Base L 2 In the IGIDS Database File dialog box under Directories make sure your e igids directory is selected then under Files enter ex_adleg and finally press the OK push button IGIDS will save the intersection data to the file ex_adleg dbs M Exit IGIDS M 1 From the IGIDS Side Bar Menu select END IGIDS N Exit MicroStation 95 N 1 Choose MicroStation 95 File gt Exit 95 96 10 11 12 REFERENCES Rioux Thomas W Robert F Inman Charles H Berry Clyde E Lee and Randy B Machemehl Interactive Graphics Intersection Design System First Stage Development Research Report 1139 1F Center for Transportation Research The University of Texas at Austin Austin Texas November 1991 Rioux Thomas W Robert F Inman Randy B Machemehl and Clyde E Lee Interactive Graphics Intersection Design User s Manual Research Report 1308 1F Center for Transportation Research The University of Texas at Austin Austin Texas December 1994 Rioux Thomas W Robert F Inman Randy B Machemehl and Clyde E Lee Interactive Graphics Intersection Design System IGIDS Trainin
122. tall Fonts dialog box allows the user to install user defined D 7 c fonts When IGIDS was installed on your computer the instructions called for adding the IGIDS font to your font resource file You may check this by selecting Utilities gt Install Fonts On the right side of the Font Installer dialog box press the Open push button In the Open Font Library dialog box under Directories select the device and directory for MicroStation 95 normally c win32app microstation then select the directory for wsmod default symb then under Files choose font rsc and finally press the OK push button On the right side of the Font Installer dialog box examine the list for font number 59 named TrafficControl If the IGIDS TrafficControl font is not listed please contact your system administrator to rectify the problem Finally press the Done push button The MDL Applications dialog box allows the user to load start unload stop and get additional information about MDL Applications IGIDS is an MDL Application Select Utilities gt MDL Applications In the MDL dialog box in the Available Applications group select FONTEDIT from the list and then press the Load push button In the Open Font Library dialog box under Directories select the device and directory for MicroStation 95 normally c win32app microstation then select the directory for wsmod default symb next under Files choose font rsc and finally p
123. the prompt DataPt Reset accept amp place three lens Prot Left reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the left turn lane of the leg nearest the top of the screen A three lens with protected left turn signal face will appear on the left turn lane of the leg nearest the right of the screen When DataPt Reset accept amp place three lens Prot Left reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the left turn lane of the leg nearest the left of the screen A three lens with protected left turn signal face will appear on the left turn lane of the leg nearest the top of the screen In response to the prompt DataPt Reset accept amp place three lens Prot Left reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point anywhere in the window to accept the lane A three lens with protected left turn signal face will appear on the left turn lane of the leg nearest the left of the screen 62 Define the NEMA traffic signal controller phasing with northbound and southbound left turns in phase 1 northbound and southbound through movements in phase 2 eastbound and westbound left turns in phase 3 and eastbound and westbound through movements in phase 4 Gl G2 G 3 G4 G 5 G 6 G 7 G 8 From the IGIDS Side Bar Menu select TOOLS gt T
124. tive Style icon next icon to the right from the MicroStation 95 Primary Tools menu at the top and choose dash dot style style 4 The Active Style icon should now display a dash dot line on the left and a 4 on the right E 1 d Select the Active Weight icon next icon to the right from the MicroStation 95 Primary Tools menu at the top and choose weight 0 weight 0 The Active Weight icon should now have a thin line on the left and a 0 on the right 23 E 2 Place leg centerline E 2 a Place a 150 meter line at 45 degrees From the MicroStation 95 E 2 b E 2 c Main Tool menu select the Linear Elements palette row 2 right icon and drag it into the MicroStation 95 window From the Linear Elements palette choose the Place Line icon 2nd from left on the top row From the Place Line dialog box select Length to be active an X will appear enter a value of 150 meters enter the tab character to set the number select Angle to be active an X will appear and enter a value of 45 degrees enter the tab character to set the number In the MicroStation 95 Command Window Key in field enter xy 5010 5010 plus a carriage return This entry tells MicroStation 95 that the line should start at an x coordinate of 5010 meters and a y coordinate of 5010 meters In Window 1 press the Fit View icon the fifth icon from the left the line should be visible Place a 150 meter line at 30 degrees In the MicroStation
125. trictions This document is available to the public through the Design System IGIDS National Technical Information Service Springfield Virginia 22161 19 Security Classif of report 20 Security Classif of this page 21 No of pages 22 Price Unclassified Unclassified 120 Form DOT F 1700 7 8 72 Reproduction of completed page authorized INTERACTIVE GRAPHICS INTERSECTION DESIGN SYSTEM IGIDS TRAINING MANUAL by Thomas W Rioux Robert F Inman Randy B Machemehl and Clyde E Lee Research Report Number 1291 1 Research Project 0 1291 Interactive Graphics Intersection Design System IGIDS Conducted for the TEXAS DEPARTMENT OF TRANSPORTATION in cooperation with the U S Department of Transportation Federal Highway Administration by the CENTER FOR TRANSPORTATION RESEARCH Bureau of Engineering Research THE UNIVERSITY OF TEXAS AT AUSTIN January 1998 This report was prepared in cooperation with the Texas Department of Transportation and the U S Department of Transportation Federal Highway Administration ACKNOWLEDGMENTS The authors express appreciation for the guidance provided by the TxDOT Project Director H Wickes TRF and by the Project Monitoring Committee which included J Barron Waco M Emery Tyler B Gilley Lubbock J Kelly Lubbock C Slacum Lufkin and E Sanchez El Paso DISCLAIMERS The contents of this report reflect the views of the authors who are responsible for the f
126. ts a list of inbound lanes a list of outbound lanes a list of inner edge curb return segments a list of outer edge curb return segments and other leg data Each lane IGIDS object has a leg parent pointer a list of inner edge segments a list of outer edge segments a list of stop line segments a list of inner edge striping segments a list of outer edge striping segments a list of stop line striping segments a list of other striping segments and other lane data Each segment IGIDS object has a leg lane parent pointer a list of texts and data for either an arc of a circle or a line Each text IGIDS object has an alternative segment parent pointer and text data Each IGIDS object may have either a parent or child relationship with other different type IGIDS objects Any IGIDS object may have only one parent but a parent may have none one or more children Only Segs and Text have displayable graphic elements All others have graphical visibility owing solely to the attached child IGIDS objects Each IGIDS object may have a virtually unlimited number of children There is one exception to this The number of Alternatives is limited to 15 There is always only one Intersection The leg centerline must be entered and completed before any lanes may be attached An IGIDS command applied to an IGIDS object is automatically applied by IGIDS to all child IGIDS objects of the selected IGIDS object It is convenient to subclassify some IGIDS object types
127. u in section B above to set the Active Angle Active Scale Element Highlight Color Coordinate Readout and Working Units The Level Display menu allows the user to control which levels 1 63 are displayed and hidden for each view 1 8 views may be on at any 16 D 5 c D 5 d one time and to control the active level the level where all new user elements are placed Level segregates the data allowing the user to view or not view the data on individual levels View Levels can be applied to the single selected View Number MicroStation 95 Window number using Apply or to All views The active level is indicated by a circle the displayed level s are indicated by a black square and hidden level s are indicated by gray squares The active level applies to all views IGIDS sets the active level to 2 and uses levels 3 through 62 for displaying graphics IGIDS controls the level of each element placed by IGIDS The user is prohibited from changing the active level by IGIDS The user can use the IGIDS View command to control which of the levels 3 through 62 are displayed or hidden Each IGIDS Alternative uses 4 levels with the first level being the centerline graphics the second level being the lane graphics the third level being the traffic control graphics and the fourth level being the text IGIDS displays an Alert dialog box upon startup to notify the user that IGIDS will delete levels 3 through 62 giving the user the c
128. w Key in field In response to the prompt Key in angle for controller 0 00 in the MicroStation 95 Command Window Prompt Message field enter a carriage return or the enter key in the MicroStation 95 Command Window Key in field When Key in Is this a dual ring controller yes no appears in the MicroStation 95 Command Window Prompt Message field from the IGIDS Side Bar Menu select No 60 Place a three lens signal face for each through lane E l E 2 E 3 EA E 5 E 6 E 7 E 8 From the IGIDS Side Bar Menu select TOOLS gt Traffic gt Signal Face gt three lens In response to the prompt DataPt identify Inbound Lane in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the center lane of the leg nearest the bottom of the screen When DataPt Reset accept amp place three lens Face reidentify appears in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the curb lane of the leg nearest the bottom of the screen A three lens signal face will appear on the center lane of the leg nearest the bottom of the screen In response to the prompt DataPt Reset accept amp place three lens Face reidentify in the MicroStation 95 Command Window Prompt Message field place a Data point on the stop line of the center lane of the leg nearest the right of the screen A three lens signal face will app
129. wide a Many operating systems and hardware platforms are supported m Provides drawing and plotting tools m Provides dialog box interface s User can switch between IGIDS commands and MicroStation commands MicroStation Versions 4 5 and 95 a Windows 95 and Windows NT MicroStation Versions 5 and 95 m Clix MicroStation Versions 4 and 5 Relational the single absolute coordinate is the center of the intersection all geometric definitions are relative to parent object m Hierarchical the parent child relationships are maintained by IGIDS all commands are automatically processed by IGIDS for child objects 7 croStation as a CAD Engine IGIDS uses MicroStation to perform all interactive graphics operations to maintain the graphics engine database and to perform all plotting functions m IGIDS software operates above and drives the graphics engine through a higher level language interface m IGIDS allows the user to switch easily between executing IGIDS commands and graphics engine commands English or Metric units IGIDS units are automatically determined by design file master units specifications Once a project has been started in a given system of units the system of units may not be changed m 2D or 3D design file 2D for virtually all functions 3D for vertical sight distance checking Easy to convert between 2D and 3D IDS Hierarchical Objects intersectio

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