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Automated Travel Time Measurement Using Vehicle Lengths from Loop Detector Speed Traps

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  • Coifman, Benjamin
  • Cassidy, Michael

Abstract

This report presents a vehicle reidentification algorithm for consecutive detector stations on a freeway, whereby a vehicle measurement made at a downstream detector station is matched with the vehicle's corresponding measurement at an upstream station. The algorithm should improve freeway surveillance by measuring the actual vehicle travel times; these are simply the differences in the times that each (matched) vehicle arrives to the upstream and downstream stations. Thus, it will be possible to quantify conditions between widely spaced detector stations rather than assuming that the local conditions measured at a single station are representative of an extended link between stations.

Suggested Citation

  • Coifman, Benjamin & Cassidy, Michael, 2000. "Automated Travel Time Measurement Using Vehicle Lengths from Loop Detector Speed Traps," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt54b9t4b6, Institute of Transportation Studies, UC Berkeley.
    • Handle: RePEc:cdl:itsrrp:qt54b9t4b6
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    References listed on IDEAS

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