首先介绍了综合待行区在国内的研究和应用现状,阐述了信号交叉口时空资源优化策略,并通过昆明市现状交叉口实际调查对过饱和与排队溢出关系进行研究,然后提出基于综合待行区的过饱和排队溢出优化模型.最后运用微观仿真软件VISSIM对目标交叉口实施优化模型前后的车流运行情况进行仿真.结果显示,该优化模型能够充分利用交叉口内时空资源,增加展宽段车流存储量,提高车流通行能力,有效的缓解和预防因车流排队溢出引起的过饱和交通现象.%Firstly,this paper introduces the research and application status of integrated waiting area in the domestic,and expounds the time-space resources optimization strategy at signalized intersection.The relationship between oversaturation and queue overflow was researched through realistic intersection traffic survey in Kunming.Then this paper put forwards the optimization model of oversaturated queue overflow condition based on integrated waiting area.Finally,this paper uses the microscopic simulation software VISSIM to simulate the target intersection traffic running situation before and after optimization model was implemented.The results showed that this optimization model can make full use of the time and space resources in the intersection,increase stretching-segment traffic storage,improve the traffic capacity,effectively mitigate and prevent oversaturated traffic phenomenon caused by traffic queue overflow.
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