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Version 5 Hands-On

Version 5 Hands-On. January 21, 2011 David Roden – AECOM. Topics. Three case study datasets Batch and configuration files Network conversion Demand conversion Router Plan processing Microsimulator Feedback Boost threads. Case Study Datasets. Batch Files.

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Version 5 Hands-On

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  1. Version 5 Hands-On January 21, 2011 David Roden – AECOM

  2. Topics • Three case study datasets • Batch and configuration files • Network conversion • Demand conversion • Router • Plan processing • Microsimulator • Feedback • Boost threads Chicago RTSTEP TRANSIMS Model

  3. Case Study Datasets Chicago RTSTEP TRANSIMS Model

  4. Batch Files • Start with Case1\control directory • Open the RunAll.bat with a text editor • Right click  Edit • Set paths to executable programs and the configuration file • Open the Config.txt file with a text editor to review or edit the configuration file Chicago RTSTEP TRANSIMS Model

  5. Configuration Files • A configuration file can set global control keys • Set TRANSIMS_CONFIG_FILE=… • Program control keys override configuration keys PROJECT_DIRECTORY ../ DEFAULT_FILE_FORMAT TAB_DELIMITED TIME_OF_DAY_FORMAT HOUR_CLOCK MODEL_START_TIME 0:00 MODEL_END_TIME 27:00 UNITS_OF_MEASURE ENGLISH NUMBER_OF_THREADS 4 NOTES_AND_NAME_FIELDS TRUE Chicago RTSTEP TRANSIMS Model

  6. Network Conversion • NetPrep • Reformat network link and node data • TransimsNet • Apply warrants/rules to synthesize TRANSIMS network details • Pocket lanes, lane connectivity, activity locations, parking lots, access links, lane use, turn prohibitions, and signal and sign warrants • IntControl • Synthesize traffic controls from signal and sign warrants • Signal timing and phasing plans, detectors and phase offsets Chicago RTSTEP TRANSIMS Model

  7. Conversion Process Input_Link Input_Node Input_Zone NetPrep Conversion Script Link/Node/Zone TransimsNet Control Warrants IntControl Synthetic Network Traffic Controls ArcNet Network Shapefile Chicago RTSTEP TRANSIMS Model

  8. Review Control Files • Go to the control folder and open • NetPrep.ctl • TransimsNet.ctl • IntControl.ctl • ArcNet.ctl • Look for the input/output files and the program parameters • Review the inputs\NetPrep_Script.txt Chicago RTSTEP TRANSIMS Model

  9. Demand Conversion • Process distributes aggregate trip table data to individual travelers at specific locations and trip start times • Zones  activity locations within the zone • Daily/time period  second of the day • Trip purpose and orientation used to allocate trips to activity locations and set travel schedules • Activity location distribution weights by trip type • Diurnal distribution curves by trip type Chicago RTSTEP TRANSIMS Model

  10. Demand Conversion Process Zone Data Location File Location data Activity Location Trip Tables Conversion Script Diurnal Distributions Convert Trips Trip File HouseholdFile Vehicle File Chicago RTSTEP TRANSIMS Model

  11. Review Demand Inputs • Go to the input folder and open • Auto_Trips.txt • Transit_Trips.txt • HBW_PA.txt (Diurnal information) • Vehicle_Type.txt • LocationData_Script.txt • Go to the control folder and open • LocationData.ctl • ConverTrips.ctl • Look for the input/output files and the program parameters Chicago RTSTEP TRANSIMS Model

  12. Demand Conversion • Converting the traditional zone based demand database to the activity based demand database Chicago RTSTEP TRANSIMS Model

  13. Router • Create partitions using “RandomSelect” • Divides travelers to randomly selected partitions • Build paths for all the trips using “Router” • Paths built with Free Flow Speeds or an input link delay file • Go to the control folder and open • RandomSelect.ctl • Router.ctl • Look for the input/output files and the program parameters Chicago RTSTEP TRANSIMS Model

  14. Router Process Trip File Trip File Random Select Vehicle File Selection File Vehicle Type File Plans Router Link Delay File Link Node Connection Pocket Parking Location New Plans (Travel Paths) New LinkDelay File New Problem File Chicago RTSTEP TRANSIMS Model

  15. Plan Processing • Preparing the plans file to be read by Microsimulator • Plans are sorted based on their starting time • Go to the control folder and open • PlanPrep.ctl • Look for the input/output files and the Plan_Sort_Type key New Plans PlanPrep Sorted Plans Chicago RTSTEP TRANSIMS Model

  16. Microsimulator • A cell-based simulator that moves vehicles between link-lane-cells on a second-by-second basis • Cell length are equal to the length of the smallest vehicle in the Vehicle_Type file • Trucks occupy multiple cells • Includes traffic signals and stop signs, reaction time, required and discretionary lane changing, random slow downs, permissive merge probabilities, vehicle loading and parking, plan following, bus stop interactions, etc. • Actual travel time of each trip is calculated Chicago RTSTEP TRANSIMS Model

  17. Microsimulator Process Network Vehicle File Sorted Plans Vehicle Type File Microsimulator New Performance File (s) New Problem File New LinkDelay File (s) New SanpshotFile (s) New Occupancy File (s) New Turn Volume File (s) Chicago RTSTEP TRANSIMS Model SignFile

  18. Microsimulator Output Auto Truck Chicago RTSTEP TRANSIMS Model

  19. Feedback – Router Stabilization PlanSelect Selected Plans Router Travel Plans New Link Delay PlanPrep LinkDelay Sorted Plans Yes Change ? Stop No Microsimulator Travel Times Chicago RTSTEP TRANSIMS Model

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