Utilizing Big Data to Verify and Enhance Route Choice Models in Travel Demand Modeling
Virginia Department of Transportation (VDOT) has invested roughly $5M to maintain and improve its long-range travel demand models, which are needed to help analyze candidate transportation projects. A key step within these models is “trip assignment” where the path vehicles follow is represented in the network. High-resolution global positioning system (GPS)-level data offers the potential to improve the accuracy of this step. However, VDOT staff are finding some discrepancies between route choice as currently represented in demand models and route choice as observed by GPS data—and it is not immediately clear how to resolve this discrepancy. This research effort will determine the best way to use the GPS data to enhance model accuracy. Note that a substantial amount of effort needed to make this determination has already been completed through an earlier research effort, and thus, this new study adds additional work to address this trip assignment step.
Language
- English
Project
- Status: Active
- Funding: $71,000.00
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Contract Numbers:
127473
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Sponsor Organizations:
Virginia Transportation Research Council
530 Edgemont Road
Charlottesville, VA United States 22903 -
Managing Organizations:
Virginia Transportation Research Council
530 Edgemont Road
Charlottesville, VA United States 22903 -
Project Managers:
Miller, John
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Performing Organizations:
School of Engineering
CEIE Dept., MSN-6C1
Faifax, VA United States 22030 Villanova, Pennsylvania United States -
Principal Investigators:
Zhu, Shanjiang
Xiong, Chenfeng
- Start Date: 20250522
- Expected Completion Date: 20270331
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Accuracy; Data analysis; Global Positioning System; Route choice; Travel demand
- Identifier Terms: Virginia Department of Transportation
- Subject Areas: Data and Information Technology; Highways; Planning and Forecasting;
Filing Info
- Accession Number: 01955038
- Record Type: Research project
- Source Agency: Virginia Department of Transportation
- Contract Numbers: 127473
- Files: RIP, STATEDOT
- Created Date: May 15 2025 9:16AM