TRAX III Manual - JAMAR Technologies
Contents
1. A and channel B record independently When in Vol ume mode the TRAX can do either a straight axle count or use the divide by two technique EXAMPLE The TRAX has been programmed to use the divide by two tech nique As a passenger car passes over the A the unit records one count As a four axle truck passes over the A tube the unit records two counts 36 ft Round 36 ft Round 24 ft 26 ft Mini 26 ft Mini 24 ft x 4 I mu TRAX 4 3 TRAX III User s Manual L2 Two Channels with Lane Separation A B minus A Basic Volume In this layout channel A and channel B record independently The A tube is extended over one lane while the B tube is extended over two lanes At the end of each interval the A channel is subtracted from the B channel and then each channel s total is stored in memory When in Volume mode the TRAX can do either a straight axle count or use the divide by two technique The tubes should be spaced two feet apart EXAMPLE The TRAX has been programmed to use the divide by two tech nique As a car approaches the tubes in the inner lane and both front and rear axles pass over the A and the B tube the unit records a one in each channel As a second car approaches the tubes in the outer lane and both front and rear axles pass over the B tube the unit records another one in the B channel At the end of the interval the total in the A channel one2. TRAX III User s Manual If you have any questions about the use of the TRAX III or if you experience any problems with its operation please call the following number 1 215 491 4899 Monday Friday 8 00 AM to 5 00 PM Eastern time You may also contact us by fax at 1 215 491 4889 or via e mail at sales jamartech com For more information on our products or for the latest news in product develop ment visit our web site at www jamartech com Address any correspondence to JAMAR Technologies Inc 151 Keith Valley Road Horsham PA 19044 1411 Volume 2 0 October 2001 u Table of Contents Technical Support ____sessssosssssssssssssnssnsesnsennennssnnsenssnnsenssnnssnnssnnsense ii Quick Setup Guide for the TRAX IH ccrscussonsoossonssossonssonsnnennnennnnne iv Introduction to the TRAX IH ze cusossssssnsossnssorsonsnssnnsossnssnsnnsonnnne 1 1 What is the TRAX TI inrsin iie aies 1 2 How is the TRAX III Powered 0 0 0 cee eeccceceecseceeeeceereeseeeneees 1 3 Power DO and TAB Functions cccccscccecesssseceeceessteceeeeenes 1 3 Inputs and External Power Plug 0 0 eee eeeeeeeseceeeeceeeeenseeeeeees 1 4 Operation of the TRAX IH c ccrsonssossonssonsonssonsnnssnnenonsnnennnennsnnsenne 2 1 Start up Screens pda wechendidenes asthesnsediencaetns dessin 2 2 Main MeniU 0 o anarei ne E e E E n 2 3 Utilities MENU sanken RE EE EREN i 2 4 SEINES tava sa E Me nal ies 2 4 TUNE kksissshskkess
3. 2 V 0010 CLS 02 33MPH A gt C GAP 21 14 2 The first line of this screen tells you which channel of data you are seeing CHNL 0 the number of axles that have been recorded for the most recent vehicle AX 2 and how many vehicles have been recorded V 0010 The second line tells you what class the last vehicle was CLS 02 the speed of the vehicle 33 MPH and how the vehicle struck the tubes A gt C The third line tells you the gap between vehicles GAP 21 and the length between the last two axles 14 2 NOTE If you are collecting data with a four road tube layout L10 L12 pressing the TAB key will switch you to the data for your second channel This will be reflected by the channel number changing to 1 CHNL 1 TD 07 30 17 02 13 98 OPT CLASS SPEED GAP The top line of this screen gives you the date and time as they are pro grammed in the TRAX III The second line tells you the type of data that is being collected These options are fixed when in the Per Vehicle mode L11 PER VEHICLE RUN Ake e Coke B D CNT 02 MEM 99 6 4v The top line of this screen tells you the layout that has been selected L11 the type of study being done PER VEHICLE and that the TRAX HI is running or recording data RUN The next two lines represent the channels that data is being recorded on A B C amp D As the tires from an axle strike the tubes an asterisk is recorded in the appropriate channel The bottom line
4. F 72 C Date Format USA or World Time Recording Intervals English or Metric Display 4 line 20 character wide temperature LCD display Input Monitoring All inputs can be viewed on the display as the traffic crosses sensors Data Files Up to twelve digits of site code can be used for each location Clock Real Time Clock always active A 2 Appendix Appendix B FHWA Type F Vehicle Classification Scheme Class 1 Motorcycles This class includes all two or three wheeled motorized vehicles These vehicles typically have a saddle type of seat and are steered by handlebars rather than a steering wheel This includes motorcycles motor scooters mopeds motor powered bicycles and three wheel motorcycles Class 2 Passenger cars This class includes all sedans coupes and station wagons manufactured primarily for the purpose of carrying passengers includ ing those pulling recreational or other light trailers Class 3 Pickups Vans and other 2 axle 4 tire single unit vehicles This class includes all two axle four tire vehicles other than passenger cars which includes pickups vans campers small motor homes ambulances minibuses and carryalls These types of vehicles which are pulling recreational or other light trailers are included ih E Class 4 Buses This class includes all vehicles manufactured as traditional passenger carrying buses with two axles and six tires or three or more axles This incl
5. SP 8 0 ft DT 25ms Intv 15min The top two lines of this screen tell you the layout selected L11 and how the tubes should be arranged for this study The third line tells you the distance between vehicles that has been programmed into the TRAX HI DBV 36 0 and the spacing of the tubes that has been programmed 8 0 ft The fourth line tells you the dead time or D Bounce that is programmed DT 25ms and the interval length that has been programmed Intv 15min 2 19 TRAX III User s Manual TD 07 13 12 02 13 98 NO START STOP TIMES SITE ID 12345 The top line of this screen gives the date and time as they are set in the TRAX IN The next two lines are used to tell you if start stop times have been programmed If they have been programmed you will see the times and dates listed The last line is used to tell you what site code has been programmed for the study Ending a Count To end a count turn the TRAX ITI off The count will be stored in the TRAX III s internal memory Additional studies can then be conducted with the unit The TRAX III can hold up to 32 different studies in its memory 2 20 Chapter 3 Road Tube Installation amp Loop Connections TRAX III User s Manual Installing Road Tube Proper road tube installation is very important for collecting accurate data with your TRAX II The road tube and the TRAX III s air switches comprise the sensing device for the unit As with all receivers
6. Updating Loop system STAT Loop Updated TIME 00 01 Done Press DO Press DO and the status screen of the unit will appear Loop Versn 01 04 08 1024K Mem 99 Avail Counts 01 bat 6 3V TD 14 10 00 10 16 01 The first line lists the firmware version of the TRAX III The second line lists the amount of memory in the unit and what percentage of it is still available for use The third line lists the number of counts stored in the unit and the current battery voltage The fourth line lists the current time and date that are programmed in the unit After a few seconds this screen will disappear and the main menu will appear 2 2 Chapter 2 Operation of the TRAX III Main Menu COUNT UTILITIES STAT eK MAIN MENU Press DO to Select TAB changes option The Main Menu is the starting point for all of the options in the TRAX III The options on this screen are Count Program a new count When Count is selected you can choose from BASIC VOLUME ONLY PER VEH icle or BINNED Depending on the mode of data collection you have selected you can produce reports in the software for volume class speed gap length and following distance Refer to Appendix B FHWA Type F Vehicle Classification Scheme for more information on how vehicles are classified Utilities Perform miscellaneous operations that include the option to download to a module clear the counter program the default settings tune the loops set the t
7. above Loop Specifications We highly recommend that the TRAX III be used with loops that have been professionally installed The recommended inductance of the loops is between 100 and 200 microHenries although the TRAX should function within an inductance range of 70 to 350 microHenries 3 6 Chapter 4 Layouts Chapter 4 Layouts TRAX III User s Manual Layouts for the TRAX Ill The TRAX III is equipped with more than twenty pre programmed layouts for recording traffic data These represent the most common types of layouts used to record traffic data The following are descriptions of each of the layouts and the type of data that can be collected with each Each layout is different but there are some common prin ciples that should be used with any layout that is chosen e The condition of the sensors being used tubes piezos loops and the man ner in which they are installed are critical to achieving good results Refer to Chapter 3 Road Tube Installation amp Loop Connections for more information on this e A road tube length of sixty 60 feet is recommended for round tube and a length of fifty 50 feet is recommended for mini tube e In all tube setups of more than one tube the tube length from the end of the road to the counter must be the same for all tubes e In all short tube long tube layouts the vehicle must strike the short tube first e To collect class or speed data a minimum of eight feet
8. already begun Measure or monitor your battery by using a voltmeter or through the counter s display We recommend that the battery be recharged to its highest charge level usually 6 4 volts and above once it discharges to 6 0 or 5 9 volts A good battery may charge as high as 7 0 volts or better A defective battery may not charge any higher than 6 0 volts after a reasonable charge time Charge time will vary with the level of the battery voltage Usually a battery of 5 9 volts can be charged to its highest potential in 12 hours or less After a battery has been charged allow it to sit for at least 8 hours and check the voltage again to determine if the battery maintained its charge Some 6 2 Chapter 6 Battery Care decay is acceptable however if the battery falls below 6 0 volts recharge it for a longer period of time If this does not improve the charge the battery is most likely defective and it would not be wise to use it for any lengthy data collections Monitor your battery voltages frequently charging when neces sary and you will extend the life of your battery Additional Notes e Do not expose the battery to moisture or rain e Do not drop hit or abuse the battery it may break and expose the con tents which are highly corrosive e Do not short circuit battery terminals Some batteries are protected with self resetting fuses but short circuits may still cause severe damage to the battery e It is normal fo
9. description for more information 36 ft Round 36 ft Round Mini 26 ft Mini P 24 ft 26 tt Mini 24 ft C D lt cc gt 7 T TRAX III User s Manual L8 Four Lanes with Lane Separation A B minus A C D minus C Basic Volume This layout is the same as the L2 layout but with four tubes over four lanes rather than two tubes over two lanes Refer to the L2 description for more information The tubes should be spaced two feet apart 36 ft Round 36 ft Round 26 ft Mini 26 ft Mini lt gt gt 2 foot spacing between tubes L9 Four Lanes with Lane Separation A to B B to A C to D D to C Basic Volume This layout is the same as the L3 layout but with four tubes over four lanes rather than two tubes over two lanes Refer to the L3 description for more information The tubes should be spaced four and a half inches apart 36 ft Round 36 ft Round 24 ft 26 ft Mini 26 ft Mini 24 ft lt lt gt gt 4 gt 4 5 inch spacing A between tubes C Chapter 4 Layouts L10 Two Directions No Lane Separation A to B C to D Basic Per Veh Binned Class Speed Gap This layout is the same as the L5 layout but with four tubes over four lanes rather than two tubes over two lanes Refer to the L5 description for more information The tubes should be spaced eight feet apart and be of equal length 36 ft Round 36 ft Round 24 ft 26 ft Mini 26 ft Mini 24 ft gt 47
10. edge to leading edge of the loops and the range of values is from 0 to 99 9 ft This stands for Reset Loops System and will restore all of the factory defaults to the settings Tube Piezo CC This setting allows you to adjust a number of different values that deal with how the TRAX III handles tubes piezos and contact closures DT DTX DBV DT DTX DBV TSP EXIT This stands for Dead Time and allows you to set the length of time the TRAX IH will wait after recording a vehicle before it will record another one The range of values is from 00 millisec onds to 99 milliseconds This stands for Dead Time Extended and allows you to set a dead time higher than the maximum 99 ms in the standard DT With DTX the maximum dead time can be set as high as 990 milliseconds This stands for Distance Between Vehicles and allows you to enter in feet the distance between consecutive axles of the largest vehicle you would expect to see at the study site The TRAX III will use this number to determine if the distance be tween axles could be from the same vehicle or if the distance is great enough that the axles must be from separate vehicles For example setting the DBV for 36 ft tells the TRAX III that any 2 6 Chapter 2 Operation of the TRAX III axles spaced at over 36 ft apart must be from separate vehicles In the example from the following diagram a DBV setting of 36 feet would tell the TRAX III the axles spaced at 30 feet coul
11. gt e a L11 Two Lanes One Direction With Lane Separation A to C B to D Basic Per Veh Binned Class Speed Gap This layout is the same as the L5 layout but with the addition of two half tubes A and C to provide lane separation Refer to the L5 layout for further information This layout is for single direction traffic The A and C tubes should be spaced eight feet apart as should the B and D tubes The A tube should be spaced six inches from the B tube and the C tube should be spaced six inches from the D tube Remember vehicles must always strike the short tube first 36 ft Round 26 ft Mini 24 ft gt 6 inch spacing from AtoBandfromCtoD B TRAX III User s Manual L12 6 Two Directions With Lane Separation A to C D to B Basic Per Veh Binned Class Speed Gap This layout is the same as the L11 layout but for bidirectional traffic Refer to the L11 layout for further information The A and C tubes should be spaced eight feet apart as should the B and D tubes TheA tube should be spaced six inches from the B tube and the C tube should be spaced six inches from the D tube Remember vehicles must always strike the half tube first 36 ft Round 26 ft Mini A 24 ft N 6 inch spacing from AtoBandfromCtoD B Chapter 4 Layouts L21 1 Loop E Volume Only In this layout one loop is installed in one lane For every vehicle that passes over the loop a count of one is
12. layout across two lanes of traffic and each lane is twelve feet wide In order to ensure that the distance the air pulse has to travel from the edge of the road to the counter is the same for all tubes you should use 38 feet for the short tubes A amp C and 50 feet for the long tubes B amp D The short tubes will be installed over only one lane 12 feet leaving 26 feet of tube back to the TRAX The long tubes will be installed over two lanes 24 feet but since they are 50 feet long you will still have 26 feet back to the TRAX For round tube the lengths would be 48 feet for the short tubes and 60 feet for the long tubes It is very important that the air pulses travel over the same distance when two or more tubes are used to record data 3 2 Chapter 3 Road Tube Installation amp Loop Connections To accommodate the required length of tube brass splices may be used The splices are approximately three 3 inches long hollow and do not restrict the flow of air Do not use the splices on the roadway itself only on the section of tube after the clamp nearest the TRAX Tube Placement Tubes should be placed exactly perpendicular to the flow of traffic to prevent double counting When using two or more tubes that must be set at specific distances from each other always use a tape measure or ruler to measure from the center of each tube to determine the proper spacing In short tube long tube setups the short tube should be ins
13. registered in the TRAX TRAX L22 2 Loops E F Volume Only In this layout one loop is installed in each lane of a two lane road For every vehicle that passes over the loop a count of one is registered in the TRAX for the appropriate lane L23 4 Loop E F G H Volume Only In this layout one loop is installed in each lane of a four lane road For every vehicle that passes over the loop a count of one is registered in the TRAX for the appropriate lane TRAX III User s Manual L24 2 Loops 1 Lane Binned Length Speed Gap In this layout two loops are installed in one lane Channel E and channel F record dependent on each other EXAMPLE A car is traveling southbound approaching the loops As the vehicle passes over the front of the first loop and then the front of the second loop the speed and length of the vehicle are registered and a one is added to the volume data This type of setup does not use the divide by two technique in recording volume Each individual vehicle counts as only one L25 4 Loops 2 Lanes Binned Length Speed Gap This layout is the same as the L24 but with two additional loops in a separate lane 4 12 Chapter 4 Layouts L26 Loop Tube Piezo Loop 1 Lane Binned Per Vehicle Class Speed Gap This layout is the same as the L24 but with the addition of a piezo or tube that allows the TRAX to record classification data L27 Loop Tube Piezo L
14. the sensor has to be functioning properly to record reliable information With this in mind examine your installations carefully and be absolutely certain that Actual Size your unit is recording data as programmed The following installation instructions cover round tube 25 inside di ameter ID by 60 outside diameter OD and mini tube 187 ID by 365 OD These directions will assist you in placing your road tubes correctly on the road surface with Round Mini confidence and a minimum of effort Tube Tube Tube Length Tube length is very critical in order to record accurate vehicle data The following guidelines should be followed for all studies regardless of simplic ity The lengths listed for each study below have shown to provide the best results based on extensive testing L1 L3 L4 L5 L6 L7 L9 L10 Long tube setups To encompass all types of vehicles and speeds a tube length of sixty 60 feet is recommended for round tube fifty 50 feet for mini tube These lengths should satisfy all requirements for normal street road highway and interstate traffic patterns L2 L8 L11 L12 Short tube long tube setups To ensure the pulses from the road tubes arrive at the counter in the proper order the tube length must be the same from the edge of the road to the TRAX I This will ensure that the pulse from the short tube arrives before the pulse from the long tube Example You are using mini tube to install an L11
15. Road Tube 20 ID x 375 OD Since mini tube is smaller and lighter than standard round tube less hardware is required to install the tubes Also mini tube should not be stretched when installed just placed on the road Mini Tube Installation Mastic or Duct Tape Webbing MASTIC OR DUCT TAPE 6 Lengths are satisfactory WEBBING Approx 4 TUBE 50 ft lengths are recommended to 5 long Loop over Coil any excess tube near the counter tube and nail as shown above Do not stretch the tube just pull it tight to avoid any movement Webbing can be used to secure the tube at each end of the roadway You may tie a knot at the far end of the tube instead of using an end plug or PK nail Since the mini tube is light and low profile you may use duct tape or two inch mastic to secure the tube to the roadway Generally three pieces of tape mastic are sufficient To reduce wear and or breakage of the tape do not install the tape in the path of the vehicle tires When installing a short tube long tube configuration L2 L8 L11 L12 you may install both tubes completely across the road and tie a knot midway of the half tube This eliminates nailing the half tube on the center line which can create a safety problem for installation personnel 3 4 Chapter 3 Road Tube Installation amp Loop Connections Checking for Accuracy Once your tubes are installed and you are collecting data observe the traffic as it is b
16. X III will download all of the counts stored in the unit You will be prompted for file names for each of the studies that are down loaded If you assign the same name several times in a row you will be copying over the previously named files Binned Cls Speed Gap data collection is not providing all of the data desired Check the TRAX III s setup to be sure the correct data options have been pro grammed The data is not being collected in the intervals desired Check the Interval setting in the TRAX III s default settings Not all layouts are available to be selected with the study requested Only certain layouts can be used depending on the mode of data collection re quested Refer to Chapter 4 Layouts for more information on the layouts Cannot view all of the information desired on the TRAX I display after the study has begun There are multiple status screens for each of the data modes To view these screens use the TAB key 8 2 Chapter 8 Troubleshooting Serial Port test failed Make sure that you are using a test connector with the proper pin configuration The test will fail if a test connector is not used The cable used for downloading cannot be used as a test connector The data produced is not accurate Check the layout used in the field and the condition of the tubes piezos or loops Make sure any tubes used were set with the proper length spacing and perpen dicular to the flow of traffic One simple condit
17. able MEM 95 and the battery voltage 6 4v L6 2 Equal Tubes with spacing 2 dir SP 8 0 ft DT 25ms The top two lines of this screen tell you the layout selected and the how the tubes should be arranged for this study The third line tells you what the tube spacing is set for in the TRAX III SP 8 0 ft The fourth line tells you what the dead time or D bounce is set for in the TRAX MI DT 25ms 2 14 Chapter 2 Operation of the TRAX III TD 07 13 12 02 13 98 NO START STOP TIMES SITE ID 12345 The top line of this screen gives the date and time as they are set in the TRAX III The next two lines are used to tell you if start stop times have been programmed If they have been programmed you will see the times and dates listed The last line is used to tell you what site code has been programmed for the study Volume Only Status Screens CHNL CNTS Int 0001 A gt B 0006 B gt A 0008 TD 07 19 50 02 13 98 The top line of this screen tells you the way in which the data is being collected CHNL CNTS or Channel Counts and the current interval number Int 0001 The next two lines give you the total per channel for the current interval The last line gives you the time and date as they are programmed in the TRAX IH TOTAL COUNTS A 000006 B 000008 This screen provides the total accumulated volume for each channel for the entire study This can be used to get a total count without having to download th
18. beled on the computer itself with COM 1 listed as 1 or A and COM 2 listed as 2 or B The following tips should help you to avoid problems when download through a computer s serial port 1 You must correctly identify what port you are plugging the cable into The 25 and 9 pin connectors used for serial ports are also used for serial or parallel printers mice plotters video cards and other devices Just because your cable fits into a connector on your PC does not mean it is a serial port Consult your computer instruction manual if you have any questions on which ports are serial ports on your computer 2 Many computers have more than one serial port You will need to know which serial port you are plugging the universal cable into Serial ports are designated as COMx where x is a number from to 4 You will need to know this number to download the unit 3 Some devices that are plugged into a computer s serial port will not allow the TRAX I to download its data properly These are devices that require a program called a device driver to be running in the computer at all times These device drivers are very self centered and think that all the data coming into the serial port is for them Mice digitizer boards Palm Pilots and light pens are all devices that require these device drivers to be running If you have to unplug a device from the serial port to plug your TRAX Ill in or if you are using a switch box be sure that the device doe
19. can be generated using JAMAR s analysis software Chapter 1 Introduction to the TRAX III How is the TRAX Ill powered The TRAX III is powered by a rechargeable lead gel battery Depending upon use batteries may last for several months before they need to be recharged The TRAX III displays the battery voltage when it is first turned on This allows you to determine if there is enough battery power to complete a study Generally battery voltage should register at 6 3 VDC or higher for a full charge Refer to Chapter 6 Battery Care for more information on battery maintenance The TRAX III also contains an external battery plug for charging the battery or powering the unit from a solar panel or other external source Power DO and TAB Functions OFF ON An OFF ON switch on top of the front panel is used to power the unit A four line by 20 character display helps you select the proper entries All options are clearly displayed with the currently selected option flashing The bottom two lines of the display are used to explain the option that is highlighted Two buttons are all that are used to move from menu to menu and to select from the various options shown on the display One key TAB is used to move the highlight to the option you want and another is used to implement it the DO key In general you press the TAB key until the option you want is flashing and then press the DO key If you move the highlight too far and overshoo
20. ce TAB to Settings and press the DO key once 4 TAB to INT and press the DO key once TAB to select the interval length desired and press the DO key when your selection is flashing 5 Hit the DO key twice with Exit flashing to return to the main menu Note the default settings will remain stored in the counter for all future counts You will not need to set them again unless you are going to do a different type of study 6 From the Main Menu press the DO key when Count is flashing 7 Select the type of study you wish to do by using the TAB key and hitting DO when your selection is flashing The options are Basic Volume Only Per Veh Per Vehicle and Binned Basic Also known as Raw Data in this type of study the TRAX time stamps every axle hit These time stamps are then sorted by the software Per Veh Per Vehicle One step below Basic in this study the TRAX stores the information for each vehicle individually Binned This study can provide Class Speed and Gap information in separate files With this type of study the information for each vehicle is not stored individually but sorted into pre defined bins Volume Only the simplest of the studies it records data on an axle by axle basis or divide by two basis 8 After selecting your type of study you will be prompted to select a layout using either tubes loops or a combination of the two Refer to the descriptions in Chap ter 4 for the appropr
21. d be from the same vehicle but the axles spaced at 42 feet must be from separate vehicles TSP This stands for Tube Spacing and allows you to enter the dis tance between the tubes or piezos contact closures that the TRAX III is connected to The range of values is from 0 to 99 9 ft NOTE The spacing does not affect volume studies and does not need to be changed for these types of studies Tune LOOP STATUS TUNE AL EFGH EXIT The Tune option allows you to both check the current status of the loops as well as tune them To check the loop status press the TAB key until Loop Status is flashing then press the DO key You can Tune all the loops by press ing the TAB key until Tune All is flashing then pressing the DO key Or to tune an individual loop press the TAB key until the letter for the loop you want to tune is flashing then press the DO key Module STATUS WRITE ERASE EXIT Status Data Module Press DO Key The Module option allows you to use a JAMAR data module with the TRAX III You can check the status of a module erase a module or download data into a module by using the module s cable to connect to the COM port on the 2 7 TRAX III User s Manual TRAX II The module can hold multiple files from several different counters With this feature you can download all of your data in the field and only have to transport the module back to your office for downloading into the software Status This option all
22. divide by two technique This layout can be used with single direction or bidirectional traffic however there is no lane separation 36 ft Round 26 ft Mini 24 ft lt lt _ gt t E A L5 One Direction No Lane Separation A to B Basic Per Veh Binned Class Speed Gap One Direction In this layout both tubes A and B are extended across the lanes to be studied Channel A and channel B record dependent on each other The tubes should be spaced eight feet apart and be of equal length EXAMPLE A car is traveling southbound approaching the tubes As the vehicle passes over both the A and B tubes the speed and class of the vehicle are registered and a one is added to the volume data This type of setup does not use the divide by two technique or axle counting in recording volume Each individual vehicle counts as only one 36 ft Round 26 ft Mini A 24 ft Chapter 4 Layouts L6 Two Lanes With Lane Separation A to B B to A Basic Per Veh Binned Class Speed Gap Bidirectional This layout is the same as the L5 layout but provides lane separation for bidirec tional traffic The tubes should be spaced eight feet apart and be of equal length 36 ft Round 26 ft Mini 24 ft lt gt L7 Four Lanes A B C D Basic Volume This layout is the same as the L1 layout but with four tubes over four separate lanes rather than two tubes over two lanes Refer to the L1
23. e Site Code is a way for you to guarantee that the data you collected at a particular site was indeed collected there To enter a Site Code press DO while YES is flashing You may then enter a numerical code up to 12 characters using the numbered keys on the TRAX IH If you do not wish to use a Site Code TAB until NONE is flashing and press DO NOTE Pressing DO while EXIT is flashing will exit you out of the count setup and back to the Main Menu After you have entered your Site Code you will be taken to the Count Start Up Menu 2 12 Chapter 2 Operation of the TRAX III Count Start up Menu START STAT TEST EXIT The Count Start up menu allows you to immediately begin a count check the status of the setup or set the TRAX III into test mode Stat When you select STAT from the Count Start up menu you will see a screen similar to the one shown below BASIC Startup Status Use TAB to advance display screens CNT 02 MEM 95 6 4v Use the TAB key to scroll through screens which give you information such as the current count number percentage of memory available battery volt age study type selected current date and time start stop times and site ID After you have tabbed through the available screens you will be returned to the Count Start up Menu Test When you select TEST from the start up menu you will see the screen shown below START STAT EXIT Press DO to Start TEST MODE ENABLED Selecting sta
24. e counter to a computer 2 15 TRAX III User s Manual L04 VOLUME RUN Ah Bek RR CNT 02 MEM 99 6 4v The top line of this screen tells you the layout that has been selected L4 the type of study being done VOLUME and that the TRAX III is run ning or recording data RUN The next two lines represent the channels that data is being recorded on A and B As the tires from an axle strike the tubes an asterisk is recorded in the appropriate channel The bottom line tells you what number count this study is in the TRAX HI CNT 02 the percentage of memory available MEM 99 and the battery voltage 6 4v L3 Two Full Length Tubes A gt B B gt A Vol DT 25ms Intv 15 min The top two lines of the screen tell you the layout selected and how the tubes should be arranged for this study The fourth line tells you what the dead time or D bounce is set for in the TRAX III DT 25ms and what length of interval is being used for the study Intv 15min TD 07 19 50 02 13 98 NO START STOP TIMES SITE ID 12345 The top line of this screen gives the date and time as they are set in the TRAX III The next two lines are used to tell you if start stop times have been programmed If they have been programmed you will see the times and dates listed The last line is used to tell you what site code has been programmed for the study 2 16 Chapter 2 Operation of the TRAX III Per Vehicle Status Screens CHNL 0 AX
25. e default settings in all areas of the TRAX II This can be used as a quick way to restore the TRAX III to its initial format Tests MEMORY DISPLAY KEYS S PORT EXIT The Tests option allows you to perform a variety of diagnostic checks on the TRAX III Memory Press DO while Memory is flashing and the TRAX III automatically starts testing the memory The test does not affect any data that is stored in the unit Display To test the display press DO after the various screens that are displayed Keys Press any of the keys and the TRAX III will display the key you pressed Press DO to exit Serial Port Plug a test connector into your serial port The connecter must short the 2 amp 3 pins NOTE This test will fail if a test connector is not used properly 2 9 TRAX III User s Manual Count Menu BASIC VOLUME ONLY PER VEH BINNED EXIT When you select Count from the Main Menu the screen shown above is dis played The options on this menu are Basic Also known as Raw Data in this type of study the TRAX time stamps every axle hit These time stamps are then sorted by the software This type of study can only be done with road tubes piezos or contact closure Selecting this type of count will take you into the Layout selection menu Per Veh Short for Per Vehicle this study is one step below Basic It store the informa tion for each vehicle on a vehicle by vehicle basis which allows for exten sive mani
26. eing recorded to be sure everything is working correctly If possible check the tubes periodically during the study to ensure they have not been damaged and data is being recorded as programmed Upon completion of your data collection remove the tubes clamps nails and anything else that may be of danger to the motorists The mastic may be hard to remove in some instances especially in hotter weather In those cases it may be left on the highway and eventually it will blend into the asphalt from the flow of traffic 3 5 TRAX III User s Manual Connecting to a Loop The TRAX III is connected to a loop using a loop cable like the one shown here This cable contains wires for connecting from one to four loops to the TRAX I Generally the wires from the loop cable are connected to the wires from the loop itself using a terminal block The following color code is used for the wires j Loop 1 Red amp Black with Red Stripe Be Loop 2 White amp Black with White Stripe Ea Loop 3 Green amp Black with Green Stripe Loop 4 Blue amp Black with Blue Stripe TEETE Loop 1 Loop2 Loop3 Loop 4 The connections from the individual loops do not have to be in a specific order For example the red wire on the loop cable can be connected to either wire from Loop 1 After screwing the black connector of the loop cable to the TRAX III connect the wires of the loop cable to their corresponding loop using the color code
27. et Shorter lengths may be used provided the vehicle speeds do not exceed 30 mph Tube Placement Tube placement should be perpendicular to the flow of traffic however when using a high DTX setting a slight angle by the tube or angled wheels of a vehicle will not cause the counter to double count Remember this only applies to low speed counting tubes should be placed correctly on the roadway regardless of low or high speed counting As a reminder two hits on the road tube represents one count in the volume mode Additionally the TRAX I will record a count even if the front and rear tires on only one side of the vehicle passes over the tube as well as if both front and rear tires do Dead Time DT DTX The DT setting is measured in milliseconds which controls the output pulse interval from the air switch Typically the pulse interval is set at 20 to 40 milliseconds for normal operation This setting will cover most speeds how ever speeds from idle to 10 mph will require the DT setting to be increased When measuring volume in a very low speed situation use a DTX setting of 200 to 300 milliseconds to avoid double counting The above rules may be varied slightly since each tube installation for low speed traffic counting is unique The tube length and DT may be adjusted to fit your specific parameters Once you have decided on your settings monitor incoming data to ensure accuracy NOTE Be sure to reset the DT setting once you
28. f the month Finally TAB to year and enter the year When completed press the DO button NOTE The real time clock in the TRAX III uses a 24 hour military format i e 5 00 P M is 17 00 Interval Internally store data in 5 10 15 30 or 60 minute intervals Use the TAB button to select INT and press DO Use TAB to highlight the number of minutes in which you would like the data stored With the number flash ing press DO 2 4 Chapter 2 Operation of the TRAX III Date Units D U Set the date style and units to be used in the TRAX The date can be set to either USA month day year or World day month year formats The units can be set to either English or Metric units Loop This setting allows you to adjust a number of different values that deal with how the TRAX III handles loops SV VC TO RT DTX TRD LSP RST EXIT SV This stands for sensitivity value and allows you to set how sen sitive the TRAX III should be when recording vehicles Values can be entered for all loops at one time or on an individual basis The range of values is from 1 least sensitive to 99 most sensitive In general if you are getting extra counts from ve hicles you should lower the sensitivity If you are missing ve hicles you should raise the sensitivity VC This stands for Vehicle Count and allows to set the number of vehicles that will be recorded before the TRAX III checks to see if it needs to retune itself Values can be entered for all
29. have finished your low speed counting Using an incorrect DT setting for average speed traffic will produce incorrect data 7 2 Chapter 8 Trouble shooting TRAX III User s Manual Troubleshooting The following are some common questions problems that can be encountered when using the TRAX III The possible answers that are stated with them are not necessarily the only answer but should be checked first before contacting us If you cannot find the answer to your problem question do not hesitate to contact us Contact information is listed on the first page of this manual Additional support information can also be found on our web site at www jamartech com There is no display visible on the TRAX IH Check that the unit is not in its power saving mode The display automatically goes out when the TRAX III has not been disturbed for several minutes To bring the display back up hit any key The display on the TRAX III will not come on The battery voltage may have gone too low to power the display Connect the TRAX to a battery charger and charge for 12 hours then see if the display comes up If the unit was in the field collecting data when this problem occurred turn the unit off return it to your office and charge Even if the battery voltage was too low to power the display it may have been high enough to continue collecting data When downloading not all of the studies done are appearing The software used with the TRA
30. hkentiiswigsrisigkeshnn 2 7 Module sauce ERE E dabedn 2 7 Memory eraoo eei ennt SAES keeap n YEE PESEE ENE IREE 2 8 Tests lt aneen TE En EREI R EE E E e 2 9 Count Ment aeee a Ei E E EE 2 10 Layout Selection uuenseeseessesseesnenseennensennen nennen 2 11 Ste Code s eana eee nE E EE Tas 2 12 Count Start up Menu sssssesesseessseeseesesessserrrsreerrsesrsseneesee 2 13 Stat O aaae a E A E EErEE 2 13 Test ZEsiseheinel itisknhtishl ste sjn 2 13 SHEETS SEEE E E E ES 2 14 Basic Data Status Screens sosser 2 14 Volume Only Status Screens eee 2 15 Per Vehicle Status Screens een 2 17 Binned Status Screens ceceescceseeceeeeneeeenees 2 18 Ending lt a Count ae last 2 20 Road Tube Installation amp Loop Connections curconssorsonsorsonssonne 3 1 Layouts aise seatinssicensenssussecnssessucsovnanoeseseneseascavocnenssens 4 1 Downloading the TRAX TH csssssssscsssssscscscsceseseseesesssesseesseeee 5 1 Battery Care Low Speed Counting Troubleshooting Appendix iii TRAX III User s Manual Quick Setup Guide for the TRAX Ill 1 Turn the TRAX III ON 2 From the Main Menu TAB to STAT and hold down the DO key Check the battery voltage bat X Xv For longer studies week or more the voltage should be at least 6 4 It can be less for shorter counts but should not be below 6 1 Release the DO key when finished checking 3 TAB to Utilities and press the DO key on
31. iate selection TAB to your selection and press the DO key to select it 9 You will then be prompted to select a site code Press DO with Yes flashing to enter one or press DO with None flashing to not use a site code 10 Press DO with Start flashing to begin your study iv Chapter 1 Introduction to the TRAX II TRAX III User s Manual What is the TRAX III The TRAX III is an automatic traffic recorder designed and built by JAMAR Technologies Inc It is designed for ease of use but contains many options and features that are needed for comprehensive traffic data analysis The TRAX III can collect data in four modes basic raw data volume only data per vehicle data and binned class speed and or gap data These various modes allow you to go from a simple one lane volume count to a multi lane individual axle time stamped raw data collection with the same piece of equipment The method used for data collection can be road tubes loops or piezos or a combina tion of these These options allow you to collect accurate data under the most difficult of circumstances The TRAX III can store up to 32 different studies It stores the type of study done the date and time a site code and the data for the study At any convenient time you can transfer the data to your computer or a data module through the RS 232 serial port and process the data Reports for volume class speed gap length or following distance
32. ime amp date restore default vehicle settings and perform diagnostic tests on the TRAX ITI Stat Select to display available memory counts stored battery power and time date This is the same screen as the last start up menu described on page 2 2 TAB until STAT is flashing then hold the DO key down to review the informa tion on this screen Approximately five seconds after releasing the DO key the screen will return to the Main Menu 2 3 TRAX III User s Manual Utilities Menu SETTINGS TUNE MODULE MEMORY TESTS EXIT The Utilities Menu contains an assortment of operations that are necessary and or helpful to the operation of the TRAX III Press the TAB key until Utilities is flashing then press the DO key to enter this menu When you have selected Utilities from the Main Menu the screen shown above is displayed Settings T DATE INT D U LOOP TUBE PIEZO CC EXIT NOTE The nonvolatile memory in the TRAX II will retain the default set tings you program These settings will be used for future traffic studies with out having to re enter the Settings menu Time Date TAB to T DATE and push DO Set the current time and date for your location starting with the hour Use the CHANGE buttons 3 and 6 to correct the settings as required Use the TAB key to move from the hour setting to the minutes Enter the correct number of minutes TAB to month and enter the number for the current month TAB to day and enter the day o
33. ion check of a tube that is laid out in the field is to disconnect the tube from the TRAX III and hold the end to your cheek You should feel the air pulse as tires cross the tube If you do not there may be a tear in the tube or it may be blocked After setting up a counter always observe the display and traffic to be sure data is being recorded properly The TRAX III will not download Check your connection between the TRAX and the computer Refer to Chapter 5 Downloading the TRAX III for other items to check The TRAX III displays File Error during the download process The counter may not have been cleared properly Once the clearing memory pro cess has started it must be allowed to finish before the counter is turned off If this error appears the counter must be cleared properly before future use If you are unable to find a solution to your problem contact us using the information located on the first page of this manual 8 3 TRAX III User s Manual This page was intentionally left blank 8 4 Appendix TRAX III User s Manual Appendix A Technical Specifications Size 10 X 7 X 6 Weight approximately 7 Ibs in a cast aluminum housing Sensor Inputs Road Tube Loop Piezo Memory 1024 KB backed up by lithium battery Power 6 volt 10 amp hour rechargeable lead gel battery with solar panel option Interface RS 232 serial 9 pin DBS socket Temperature Range Minus 40 F 40 C to 165
34. is recorded to memory That total is then subtracted from the B subtotal of 2 for a final B total of one One vehicle has been recorded in each lane of the study 36 ft Round 26 ft Mini gt 2 foot spacing between tubes 4 4 Chapter 4 Layouts L3 Two Channels with Lane Separation A to B B to A Basic Volume In this layout both tubes A and B are extended across the lanes to be counted Channel A and channel B record independent of each other When one tube is hit the next hit is ignored When in Volume mode the TRAX can do either a straight axle count or use the divide by two technique The tubes should be spaced four and a half inches apart EXAMPLE The TRAX has been programmed to use the divide by two tech nique A car is traveling southbound approaching the tubes As the front and rear axles strike the A tube a one is registered in the A channel The front and rear axles then strike the B tube but these hits are ignored since the A tube has just been hit Conversely a car traveling northbound will strike the B tube first recording it in the B channel and then have its hits on the A tube ignored 36 ft Round 26 ft Mini lt 24 ft gt 4 5 inch spacing between tubes North 45 TRAX III User s Manual L4 One Channel A Volume In this layout one tube is extended across the lanes to be counted When in Volume mode the TRAX can do either a straight axle count or use the
35. k the tubes A gt C The third line tells you the gap between vehicles GAP 21 and the length between axles 14 2 NOTE If you are collect ing data with a four road tube layout L10 L12 pressing the TAB key will switch you to the data for your second channel This will be reflected by the channel number changing to 1 CHNL 1 2 18 Chapter 2 Operation of the TRAX III TD 07 30 17 02 13 98 OPT CLASS SPEED GAP V0 02 V1 01 Interval 0001 The top line of this screen gives you the date and time as they are pro grammed in the TRAX III The second line tells you the types of data that have been programmed to be collected The third line gives you the vehicle totals for each channel for the current interval The fourth line tells you what interval is currently being recorded L11 BINNED DATA RUN Ake C8 B D CNT 02 MEM 99 6 4v The top line of this screen tells you the layout that has been selected L11 the type of study being done BINNED DATA and that the TRAX II is running or recording data RUN The next two lines represent the channels that data is being recorded on A B C amp D As the tires from an axle strike the tubes an asterisk is recorded in the appropriate channel The bottom line tells you what number count this study is in the TRAX II CNT 02 the percentage of memory available MEM 99 and the battery voltage 6 4v L11 2 1 2 amp full Tube Sets A gt C B gt D DBV 36 0
36. nit truck Class 11 Five or Less Axle Multi Trailer Trucks This class includes all vehicles with five or less axles consisting of three or more units in which the pulling unit is a tractor or single unit truck i Class 12 Six Axle Multi Trailer Trucks This class includes all six axle vehicles consisting of three or more units in which the pulling unit is a tractor or single unit truck en N Class 13 Seven or More Axle Multi Trailer Trucks This class includes all vehicles with seven or more axles consisting of three or more units in which the pulling unit is a tractor or single unit truck The TRAX III also collects data for Class 14 Unclassified Vehicles This class includes all vehicles which the TRAX III could not process into one of the existing 13 classes This data can be retained in your reports or it can be redistributed by the software into the existing 13 classes based on the percent ages in each of those classes A 5 TRAX III User s Manual We are pleased that you have chosen the JAMAR TRAX Il for your data collection needs We have strived to develop a unit that is easy to use and has the options that our customers require The TRAX III has undergone extensive testing to verify the accuracy of its operations and each unit is road tested before it leaves our facility However just like other complex electronic devices problems can occur We have always suggested that users verify the conti
37. nuing accuracy of any de vice they use We feel verification against manual counts should be performed on an annual basis as required by the FHWA to assure proper operations and results Should you detect any problems with any of our products please no tify JAMAR Technologies immediately and discontinue use of the unit until we have verified its operation
38. of tube spacing is required to achieve accurate results e For counts done in the volume only mode the TRAX will either do a straight axle count or use the divide by two technique in which every two axle hits will increment the TRAX by one In order to record volumes on a vehicle by vehicle basis without regard to their number of axles you must be in the Binned mode with the appropriate hose configuration e Data can be collected in the Basic mode with any of the tube layouts since basic data is essentially a collection of all the sensor activations on an indi vidual basis However the minimum tube spacing requirements still apply to Basic data If a layout says volume only that is the only information you will be able to accurately get from it You can collect data in the Basic mode with an L1 layout but you will only be able to get volume data not class speed etc e Since Basic data collection requires the time stamping of each individual axle it requires a great deal more memory space in the TRAX 4 2 Chapter 4 Layouts e The following examples of how the data is recorded do not apply to the Basic data mode Basic data is a collection of sensor activations that are then later grouped into usable data by the software The diagrams for the following tube layouts assume a length of twelve feet per lane of traffic and are shown for round tube and mini tube L1 Two Channels A B Basic Volume In this layout channel
39. oop 2 Lane Binned Per Vehicle Class Speed Gap This layout is the same as the L26 but with the addition of 2 loops and a piezo or tube for a second lane 4 13 TRAX III User s Manual L28 Tube Piezo Loop Tube Piezo 1 Lane Binned Per Vehicle Class Speed Gap This layout is the same as the L5 but with the addition of a loop to provide greater accuracy 36 ft Round 26 ft Mini 24 ft L29 Tube Piezo Loop Tube Piezo 2 Lane Binned Per Vehicle Class Speed Gap This layout is the same as the L6 but with the addition of two loops to provide greater accuracy 36 ft Round 36 ft Round 26 ft Mini 26 ft Mini 24 ft 6 ft Mini gt lt 24 ft 4 14 Chapter 5 Downloading the TRAX IlI TRAX III User s Manual Downloading a TRAX Ill The TRAX III is designed to be downloaded to a computer or data module using its communications serial port To properly download the unit you will need JAMAR s data analysis software an available serial port on your computer and a JAMAR universal cable shown to the right Note that you cannot download a TRAX I to a computer or module while it is collecting data You must end any counts by turning the unit off before you download To prepare to download your data connect the universal cable to a serial port on your computer Some serial ports have 25 pins and some have 9 Generally COM lis a9 pin COM 2 is a 25 or 9 pin The ports may be la
40. ows you to check whether there is data currently stored in the module Write This option allows you to download data from your TRAX II into the data module You are asked to verify this selection several times to make sure this is what you want to do Erase This option allows you to clear any data stored in the module You are asked to verify this selection several times to make sure this is what you want to do Once the data has been erased it cannot be restored so use this option carefully Memory DATA VEH RST EXIT The Memory option allows you to clear or reset various portions of the TRAX Is memory Data This option will clear any count data in the TRAX III s memory You will be prompted to confirm this selection several times to make sure this is what you want to do NOTE Once the clearing memory process has started you must allow the counter to finish before turning it off Turning the counter off before the clearing process is finished will result in a file error in the counter Veh This stands for Vehicle Table and allows you to restore the factory default tables for storing data The TRAX III has the ability to upload user defined tables for class speed or gap data collection The VEH option 2 8 Chapter 2 Operation of the TRAX III will restore the defaults which are 15 70 mph by 5 mph for speed FHWA scheme F for class and 2 to 26 by 2 seconds for gap RST This option allows you to Reset all th
41. pulation of the data Selecting this type of study will take you into the Layout selection menu Volume Only This study counts traffic on an axle by axle basis or using the divide by two technique where every two axle hits are recorded as one Select VOL VEH for a divide by two study or VOL AXLE for a straight axle count Selecting this type of study will take you into the Layout selection menu Binned This study can provide Class Speed and Gap binned files You can choose to collect only one type of data or two or three types at one time in any com bination Selecting this type of study will take you into the Layout selection menu 2 10 Chapter 2 Operation of the TRAX III Layout Selection L5 L6 L10 L11 L12 L24 25 26 27 28 29 A screen similar to the one shown above is displayed when in the Layout Selection menu The meaning of each of the selections is displayed on the 3rd line when the individual option is flashing Refer to Chapter 4 Layouts for a more detailed description of the individual layouts Listed below are the types of layouts that are available to be selected with the different types of data collection modes Basic L1 L2 L3 L4 L5 L6 L7 L8 L9 L10 L11 L12 Volume Only L1 L2 L3 L4 L7 L8 L9 L21 L22 L23 Per Veh L5 L6 L10 L11 L12 L26 L27 L28 L29 Binned L5 L6 L10 L11 L12 L24 L25 L26 L27 L28 L29 If you are doing a Basic Volume Only or Per Vehicle study after you have selected the tube layout for your study
42. r a battery to become warm to the touch during charging e It is normal for a battery to self discharge during prolonged storage Al ways fully charge a battery prior to storage While in storage periodically check the batteries with a voltmeter to ensure they have not discharged below a level that may cause permanent damage e Always store in a cool dry location e Keep batteries away from fire and do not incinerate they may explode e Under no circumstances should you attempt to open the battery case e Always observe polarity when connecting your battery to any electronic electrical device If your device is not protected for improper battery hookup you may cause severe damage to the electronic circuitry The positive termi nal may be indicated by a plus sign or red mark The negative terminal may be indicated by a minus sign or black mark 6 3 TRAX III User s Manual This page was intentionally left blank 64 Chapter 7 Low Speed Counting TRAX III User s Manual Low Speed Counting Below 10 mph The TRAX II is capable of recording vehicle data as low as idle speeds and above with a high degree of accuracy Tube length tube placement and the air switch D bounce DT setting are important factors in achieving excellent results from this type of application The following guidelines should be used for low speed vol ume installations Tube Length The total length should not exceed forty 40 fe
43. rt will take you to the status screens for the type of study you have programmed You will be able to observe how the TRAX II is collecting data with the setup you have programmed 2 13 TRAX III User s Manual seria aoa ET VE POR TAN Titik i ek Although you will see the data for each vehicle displayed in the TRAX I when you are in the TEST mode no data is being stored in permanent memory To end the Test mode you must turn the TRAX I off START When you select Start from the Count Start up menu the TRAX III will begin recording data You will be shown a screen that displays the data as it is being collected There are several screens available for viewing while the TRAX III is collecting data Press the TAB key to page though the available status screens The following are examples of the types of screens that are available for review depending on the study you have programmed Basic Data Status Screens L06 BASIC RUN Ag FERREE B ee CNT 02 MEM 95 6 4v The top line of this screen tells you the layout that has been selected L6 the type of study being done Basic and that the TRAX III is running or recording data RUN The next two lines represent the channels that data is being recorded on A and B As the tires from an axle strike the tubes an asterisk is recorded in the appropriate channel The bottom line tells you what number count this study is in the TRAX III CNT 02 the percentage of memory avail
44. s not have a driver running in memory Once the universal cable is plugged into the computer plug the BLACK plug on the other end into the TRAX III and slide the ON OFF switch on the unit to the ON position After a brief period of self diagnostics the counter will display the Main Menu 5 2 Chapter 5 Downloading the TRAX III COUNT UTILITIES STAT eRe MAIN MENU Press DO to Select TAB changes option This is the screen from which all downloading is done At this point refer to your software manual for information on how to setup the software for downloading Note that the TRAX IH will automatically sense whatever baud rate you select in the software The higher the baud rate the faster your data will be transferred While the data is being downloaded the display on the TRAX III will show TRANSFER IN PROGRESS COUNT 01 BLOCK 01 TKKK KOK KOK K K K K K K K K K KK KK KK The computer will show the data being received in blocks Each block represents 4096 bytes of data Once the data has been transferred to the computer you may turn the TRAX III off Do not clear the data out of the unit until you are certain that it has been downloaded successfully to the computer 5 3 TRAX III User s Manual This page was intentionally left blank 5 4 Chapter 6 Battery Care TRAX III User s Manual Battery Care The following information regarding battery care is furnished to assist you in the use and main
45. t the desired option just keep pressing the TAB key until it is re selected 1 3 TRAX III User s Manual Inputs and External Power Plug The TRAX III can be equipped with a variety of inputs for collecting data These include road tube inputs loop inputs and piezo inputs The TRAX III also contains an external power plug that can be used for charging a battery or powering the unit from a solar panel or other external source The external power plug contains two prongs and is shown at the right in the diagram below Loop plugs contain two prongs for each loop that is installed In the picture shown below the loop plug is on the left and has eight prongs indicating that there are four loops installed LOOP PLUG EXTERNAL POWER PLUG 1 4 CHAPTER 2 Operation of the TRAX III TRAX III User s Manual Start up Screens A 4 line 20 character display located in the TRAX III s front panel is used to display the unit s current options and status Note that the display of the TRAX III has a power saving feature that turns off the screen if the unit has not been disturbed for several minutes To bring the display back up press either the DO or TAB key When you turn on the TRAX II it will display several screens with information on the current status of the unit After the title screen is shown the TRAX III will begin a self check of the loop system Once this process is complete you will see the screen shown below
46. talled to the zone line center of the highway Observe traffic to be sure that vehicles in the outer lane are not coming in contact with the short tube Installation Round Tube 25 ID x 60 OD Round tube should be stretched one foot for every ten feet of roadway when being installed Each tube should be secured at each end of the roadway by using a galvanized C Clamp Chinese Finger Figure 8 Grip or an End Plate Whichever is used ensure the proper nail size is used Use the longer nail size normally 2 1 2 inch or longer in hot weather due to the softness of the asphalt In cold weather applications the as phalt becomes harder making it more difficult to drive in the nails In this situation smaller nails 1 1 2 inch can be used Round Tube Installation Clamp Clamp End Plate End Plate Chinese Chinese Finger or Mastic Finger or Figure 8 Figure 8 MASTIC 6 Lengths are TUBE 60 ft lengths are recommended satisfactory Coil any excess tube near the counter he tube should be stretched 1 ft for every 10 ft of road surface 3 3 TRAX III User s Manual Next secure the tube on the traveled portion of the road surface by using mastic As aminimum one piece of mastic should be placed on the zone line middle ofthe road and two pieces of mastic should be placed in the middle of each lane Additional mastic should be used as deemed neces sary to prevent the tube from moving when stuck by a vehicle Mini
47. tells you what number count this study is in the TRAX II CNT 02 the percentage of memory available MEM 99 and the battery voltage 6 4v 2 17 TRAX III User s Manual L11 2 1 2 amp full Tube Sets A gt C B gt D DBV 36 0 SP 8 0 ft DT 25ms The top two lines of this screen tell you the layout selected L11 and how the tubes should be arranged for this study The third line tells you the distance between vehicles that has been programmed into the TRAX HI DBV 36 0 and the spacing of the tubes that has been programmed 8 0 ft The fourth line tells you the dead time or D Bounce that has been programmed DT 25ms TD 07 13 12 02 13 98 NO START STOP TIMES SITE ID 12345 The top line of this screen gives the date and time as they are set in the TRAX IN The next two lines are used to tell you if start stop times have been programmed If they have been programmed you will see the times and dates listed The last line is used to tell you what site code has been programmed for the study Binned Status Screens CHNL 0 AX 2 V 0010 CLS 02 33 MPH A gt C GAP 21 14 2 The first line of this screen tells you which channel of data you are seeing CHNL 0 the number of axles that have been recorded for the most recent vehicle AX 2 and how many vehicles have been recorded V 0010 The second line tells you what class the last vehicle was CLS 02 the speed of the vehicle 33 MPH and how the vehicle struc
48. tenance of rechargeable batteries Battery life is dependent on the user s preventative maintenance procedures Establish regular routines for all of your batteries regardless of their usage A battery should not be allowed to discharge too low 5 8 volts and below This will cause a chemical build up on the cells that will eventually destroy the battery Symptoms of these conditions are 1 The battery will not charge to its full capacity of 6 4 volts or higher 2 The battery will only hold its charge for a short time under load con ditions 3 The battery will discharge faster than normal during storage under no load With this in mind leave your battery in the TRAX until the voltage discharges to 6 0 or 5 9 volts under normal use then recharge the battery to its highest potential normally from 6 4 volts and up The battery can be charged through the charge port with the TRAX charger or a similar 6VDC charger with the correct plug and polarity The battery may also be removed for charging if desired Charging Never plug a charger into a charge port unless you are absolutely sure of the voltage output and polarity Charging a battery is very important for obvious reasons Your TRAX de pends on a fully charged battery to operate efficiently and to produce reliable and correct data Batteries should not be allowed to sit in a discharged state for any length of time Once the battery discharges below 5 8 volts damage to the cells has
49. the loops at one time or on an individual basis The range of values is from 10 to 250 vehicles TO This stands for Time Out and allows you to set the length of time the TRAX II will wait with a constant vehicle presence before it checks to see if it needs to retune itself Values can be entered for all the loops at one time or on an individual basis The range of values is from 30 seconds to 59 minutes and 59 seconds RT This stands for Re tune Time and allows you to set the length of time before the TRAX III checks to see if it needs to re tune itself regardless of all other factors The range of values is from 30 seconds to 59 minutes and 59 seconds DTX This stands for Dead Time and allows you to set the length of time the TRAX III will wait after recording a vehicle before it will record another one The range of values is from 00 millisec onds to 990 milliseconds 2 5 TRAX III User s Manual TRD LSP RST This stands for Trailer Distance and allows you set the spacing within which any new recording will be considered a trailer from the previous recording The range of values is from 0 to 99 9 ft As an example if the TRD is set to 20 0 ft and a vehicle is recorded any new recording seen within the next twenty feet will be recorded as a trailer for the previous vehicle This stands for Loop Spacing and allows you to enter the dis tance between the loops that the TRAX III is connected to This distance is from leading
50. udes only traditional buses including school and transit buses functioning as passenger carrying vehicles All two axle four tire minibuses should be classified as Class 3 Modified buses should be considered to be trucks and classified appropriately oe JAMAR 1 N A A 3 TRAX III User s Manual Class 5 Two Axle Six Tire Single Unit Trucks This class includes all vehicles on a single frame which have two axles and dual rear tires This includes trucks camping and recreation vehicles motor homes etc fe Class 6 Three Axle Single Unit Trucks This class includes all vehicles on a single frame which have three axles This includes trucks camping and recreation vehicles motor homes etc Cha Gites sE Class 7 Four or More Axle Single Unit Trucks This class includes all vehicles on a single frame with four or more axles A cd Class 8 Four or Less Axle Single Trailer Trucks This class includes all vehicles with four or less axles consisting of two units in which the pulling unit is a tractor or single unit truck Class 9 Five Axle Single Trailer Trucks This class includes all five axle vehicles consisting of two units in which the pulling unit is a tractor or single unit truck A 4 Appendix Class 10 Six or More Axle Single Trailer Trucks This class includes all vehicles with six or more axles consisting of two units in which the pulling unit is a tractor or single u
51. you will be taken to the Site Code Menu Unlike the other three studies se CONT CHANGE EXIT lecting the Binned option does OPT CLASS SPEED GAP not immediately take you to the Site Code Menu Instead you are taken to the screen shown here Use this screen to select the types of data you want to collect The default setting is for Class Speed and Gap To change this setting press the TAB key until Change is flashing and press DO You will then be taken to the next screen On the screen shown here all three CONT CLASS SPEED GAP study types class speed and gap OPT CLASS SPEED GAP are currently selected To de se lect a study type press the TAB key until the study you want to remove is flashing Then press the DO key You will see that the study you chose has been removed from the Options listed on the second line To re select a study that has been removed press the TAB key until the selection you want is flashing Then hit the DO 2 11 TRAX III User s Manual key You will see the study you chose returned to the Options on the second line When you have configured the options for the types of data that you want to collect press the TAB key until CONT is flashing Then press the DO key and you will be taken into the Site Code Menu Site Code YES NONE EXIT The data in the TRAX III includes the date and time that the study was done but no direct information on where the study was done Correct use of th
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