基于改进F-B模型的过饱和状态下交叉口信号配时优化方法

doi:10.3976/j.issn.1002-4026.2017.02.012

Abstract

Abstract:

To reduce the vehicle delay time at oversaturated intersections, the improved F-B signal timing model was established. The procedures of cycle calculation in this model were the same as those in F-B method. The concept of “real traffic volume” was put forward when investigating the flow rate of each approach, and the delay model was used to evaluate the F-B method and the improved FB method. The case study indicated that, compared with the F-B signal timing model, the use of improved F-B model made the delay time of two neighboring intersections of Wenhua Road/Fushan Road and Wenhua Road/Hagongda Road decrease 34.39% and 28.05% respectively. The improved model can ease traffic jam effectively, and reduce vehicle queue length, and improve the intersection service level.

Key words: signal timing , real traffic volume, delay, traffic control

CLC Number:

U491.5⁺4

GAO Jia-ning，DING Yong. Optimization method of the improved F-B model based signal timing at oversaturated intersections[J].SHANDONG SCIENCE, 2017, 30(2): 78-84.

References

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Optimization method of the improved F-B model based signal timing at oversaturated intersections

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