What is it about?
Short left-turn lane length and signal phase sequence are important influencing factors on intersection operations. For isolated intersections, the impacts of different short left-turn lane lengths and signal phase sequence on traffic flow operations are analyzed using the probability theory. One single-objective optimization model is formulated to maximize the capacity of the entire intersection and guarantee an acceptable level of service for each movement.
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Why is it important?
The results indicate that the intersection capacity can be maximized under the same level of service by integrating the configuration of traffic lanes and the split of signal phases.
Perspectives
The formulated methodology can be used to improve the operations of the entire intersection by integrating the design of the left-turn lane space and signal phase sequence. As a result, the maximal intersection capacity and the minimal intersection delay can be obtained.
Ronghan Yao
Dalian University of Technology
Read the Original
This page is a summary of: Settings of short left-turn lane and signal phase sequence for isolated signalized intersections, Transport, May 2014, Vilnius Gediminas Technical University,
DOI: 10.3846/16484142.2014.915427.
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