Real-Time Delay Measurement and Intersection Analysis Systemby Rahim F. Benekohal, Univ of Illinois, Urbana, United States,
Weixiong Zhao, Univ of Illinois, Urbana, United States,
Yan Lu, Univ of Illinois, Urbana, United States,
Li Wang, Univ of Illinois, Urbana, United States,
Abstract: Two intersection delay measurement approaches are developed, and a framework for a real-time traffic signal data collection and intersection operational analysis system is presented. The two methods-Image processing method and Stop-start delay method- measure delays for individual vehicles rather than the average delay. The Image processing method measure approach delay, which can be divided into stopped delay and moving delay, but the Stop-start method measures the stopped-delay of vehicles. The delays measured by the Stop-start method were within 1 second of the actual delay for 82% of vehicles and within 2 seconds for 94% of them.
Subject Headings: Traffic delay | Traffic signals | Intersections | System analysis | Vehicles | Traffic models | Data processing | Traffic analysis
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