Traditional methods used in transportation planning to identify bottlenecks and mobility issues, such as the Volume-to-Capacity Ratio and the Planning Time Index, have limited usefulness in identifying the exact location and extent of bottlenecks. Moreover, existing bottleneck identification tools flag all bottleneck types without distinction, despite the fact that strategies and resources used to address each type are different. This research first proposes a taxonomy of congestion to distinguish between different types of bottlenecks. It then describes a new methodology for identifying the location of recurring bottlenecks. Recurring bottleneck locations must experience a reduction in speed, an upstream accumulation of vehicles, and recurrence at the same location over three consecutive months. The methodology is currently used in long-term transportation planning and project selection in Colorado to identify and address the most severe bottleneck locations in the state.


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    Title :

    A Framework for Identifying Recurring Bottlenecks in the State Planning Process in Colorado


    Additional title:

    Transportation Research Record


    Contributors:


    Publication date :

    2018-08-08




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Characteristics and Temporal Stability of Recurring Bottlenecks

    Ahmed, Ishtiak / Rouphail, Nagui M. / Tanvir, Shams | Transportation Research Record | 2018