Traffic signal systems can be more effective if high-quality performance measures are available. However, these performance measurement methodologies require more detection than exists in standard signal systems. One useful performance measure would be the traffic flow state at the intersection (e.g., static queue, discharging queue, free flow). This paper develops and tests a method for detection of the state of real-time traffic flow by interpreting patterns of signal status and traffic flow conditions measured by stop bar detectors. This paper proposes a widely available algorithm to create a model in the form of a decision tree that is calibrated to translate these states from traffic operation and signal control patterns. The tree was calibrated with microscopic simulation data and validated with independent simulation and manually extracted field data sets. Test results indicated that the traffic flow states detection methodology performed well and could be efficiently developed on large data sets.


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    Title :

    Detection of Stop Bar Traffic Flow State


    Additional title:

    Transportation Research Record


    Contributors:


    Publication date :

    2011-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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