Deriving Operational Traffic Signal Performance Measures from Vehicle Trajectory Data
| Autor: | Howell Li, Enrique Saldivar-Carranza, Margaret Hunter, Jijo K. Mathew, James R Sturdevant, Darcy M. Bullock |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
050210 logistics & transportation
business.industry Computer science Mechanical Engineering 05 social sciences Real-time computing Big data 0211 other engineering and technologies Cloud computing 02 engineering and technology Traffic signal Highway Capacity Manual Control system 021105 building & construction 0502 economics and business Trajectory Performance measurement business Retiming Civil and Structural Engineering |
| Zdroj: | Transportation Research Record: Journal of the Transportation Research Board. 2675:1250-1264 |
| ISSN: | 2169-4052 0361-1981 |
| DOI: | 10.1177/03611981211006725 |
| Popis: | Operations-oriented traffic signal performance measures are important for identifying the need for retiming to improve traffic signal operations. Currently, most traffic signal performance measures are obtained from high-resolution traffic signal controller event data, which provides information on an intersection-by-intersection basis and requires significant initial capital investment. Over 400 billion vehicle trajectory points are generated each month in the United States. This paper proposes using high-fidelity vehicle trajectory data to produce traffic signal performance measures such as: split failure, downstream blockage, and quality of progression, as well as traditional Highway Capacity Manual level of service. Geo-fences are created at specific signalized intersections to filter vehicle waypoints that lie within the generated boundaries. These waypoints are then converted into trajectories that are relative to the intersection. A case study is presented that summarizes the performance of an eight-intersection corridor with four different timing plans using over 160,000 trajectories and 1.4 million GPS samples collected during weekdays in July 2019 between 5:00 a.m. and 10:00 p.m. The paper concludes by commenting on current probe data penetration rates, indicating that these techniques can be applied to corridors with annual average daily traffic of ~15,000 vehicles per day for the mainline approaches, and discussing cloud-based implementation opportunities. |
| Databáze: | OpenAIRE |
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