Video detection technologies have been emerging in recent years as a viable alternative to inductive loop detectors to actuate intersection signal controllers. There is a need for quantitative evaluation procedures for documenting the performance of video detection technologies. This quantitative data is needed to qualify systems for procurement and provide benchmarks for training traffic signal technicians that deploy and maintain these systems. This research makes use of two new evaluation procedures for video detection, with several measures of performance. The first of these evaluation procedures involves the comparison of the occupancy times of inductive loop detectors and video detectors to find the amount of discrepancy between the two. The second evaluation method involves calibrating a statistical model in order to determine which weather and traffic characteristics have the greatest effects on the operation of video detectors. This report describes the test facilities used, the evaluation methods used, and documents results of this research. Problems documented in this report were independently corroborated by INDOT personnel by conducting spot inspections at over a dozen intersections with deployed video detection systems.

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video detection evaluation, likelihood analysis, video detector error, inductive loop detector error, sensitivity analysis, SPR-2391

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Joint Transportation Research Program

Publisher Place

West Lafayette, IN

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