STORAGE REQUIREMENTS FOR SIGNALIZED INTERSECTION APPROACHES--UNIFORM ARRIVALS
1999
In the design and operation of signalized intersections (SIs), various interactions are evident between geometric features and operational controls. For approach lanes, the necessary storage lengths are related to the available green times for a fixed cycle length. In addition, these 2 design parameters change in their relationship as the cycle length is varied. In earlier work by the authors, storage requirements for approaches to SIs were generated by simulation studies. These simulations involved separate phase control with random vehicular arrivals. Where adjacent intersections operate under good to excellent progression, vehicles tend to arrive in a more uniform manner. The aim of this study, therefore, was to provide storage lengths for uniform arrivals on SI approach for any lane operated with separate phase control. This modeling is relevant for detailed design and control considerations. Designers of SIs will be able to achieve balanced relationships among cycle lengths, green times, and storage lengths on approach lanes for the designated traffic volumes with a given arrival pattern.
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