The Design of a U-Turn Lane Right Set and Its Control Mode at an Intersection
Zhijian Wang, Liang Li, Ma Chaofeng · 2015
Aiming at the problem of low efficiency and poor security of u-turn traffic at intersection, the project carry out an analysis of operation characteristic, conflict and design on u-turn traffic, and take the u-turn traffic conflict and influence factors in consideration. For an actual signalized intersection, we design a scheme of u-turn lane right set, and give the corresponding traffic signal control mode, which effectively avoids four kinds of conflict between u-turn traffic and other traffic in time and space, and improves the efficiency and safety of u-turn traffic. Finally, operate the status quo intersection and designed intersection with VISSIM based on actual survey data of the intersection, and collect corresponding traffic data to analyze traffic evaluation. Result shows that, the implementation of u-turn lane right set and the improvement of control mode can effectively avoid conflict points between u-turn traffic and other traffic; delay time, stop time and queue length have been reduced significantly, and traffic flow capacity at intersection has also been greatly improved. In the field of traffic engineering design, it is worthy of in-depth study and innovation on right set of u-turn lane.