I NTERFACING THE MORPC NTERFACING THE MORPC REGIONAL MODEL WITH DYNAMIC REGIONAL MODEL WITH DYNAMIC TRAFFIC SIMULATION TRAFFIC SIMULATION David Roden (AECOM) Supin Yoder (FHWA) Nick Gill and Zhuojun Jiang (MORPC) Rebekah Anderson and Greg Giaimo (ODOT) FHWA – TRANSIMS Deployment Project
I nterfacing the MORPC Regional Model with Dynamic Traffic Simulation David Roden (AECOM) Supin Yoder (FHWA) Nick Gill and Zhuojun Jiang (MORPC) Rebekah Anderson and Greg Giaimo (ODOT). FHWA – TRANSIMS Deployment Project. Agenda. Study Overview Network Conversion and Debugging - PowerPoint PPT Presentation
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INTERFACING THE MORPC NTERFACING THE MORPC REGIONAL MODEL WITH REGIONAL MODEL WITH
AECOM, MORPC, ODOT, and FHWA are participating in a study to route and simulate MORPC’s tour-based demand on a TRANSIMS network Create a time-dependent TRANSIMS network Route and simulate TP+ trips on the TRANSIMS network Route and simulate MORPC tours on the TRANSIMS
network Feedback travel times from TRANSIMS to the tour
model Create a time-dependent transit network and tour
Loop ramps were added to the TP+ network to improve results
TRANSIMS Travel Demand Concepts
TRANSIMS models individual persons for 24+ hours
Trips between specific activity locations, at specific times of day, using a specific travel mode and vehicle Activity locations – street locations / block faces Time of day (start/end/duration) – seconds Modes – walk, bike, drive, ride, transit, P&R, K&R, etc.
Convert aggregate trip tables to individual travelers at specific locations and trip start times Zones activity locations within the zone Daily/time period second of the day
Activities havelocations, start times and durations
Trips connectactivities
Time Home Stop1 Work Stop2 Stop1 Shop Stop25:306:006:307:007:308:008:309:009:3010:0010:3011:0011:3012:0012:3013:0013:3014:0014:3015:0015:3016:0016:3017:0017:30
Work Tour At Work Sub-Tour
TRANSIMS Router and Microsimulator
Router builds a unique path for each trip Between origin and destination activity locations
(link-offset) Starting at a specific second of the day Using a specified travel mode and vehicle Based on network travel times in15-minute
increments Microsimulator moves vehicles between link-
lane-cells on a second-by-second basis Cells are 6 meters long Vehicles move 0, 1, 2, 3, 4, 5, or 6 cells each second