主路优先无信号交叉口次要道路通行能力分析

Capacity Analysis of Minor Lane Traffic Flow on Unsignalized Intersection

基于可插间隙理论和概率论方法,推导出理想条件下只有2股车流情况下无信号交叉口次要道路的通行能力计算模型,然后对理想模型的不足进行分析,并运用随机过程的马尔可夫理论对无信号交叉口主要道路为双向4车道,次要道路为直行车、左转车、右转车混合交通流,同时考虑不同车型,建立次要道路通行能力的修正模型.

Based on the gap acceptance theory and probability method,the capacity calculating method of minor stream is deduced on the condition of two vehicle streams under ideal conditions.Then,by analysing the derivation the disadvantage of the ideal model,capacity model of the minor mixed traffic flow on the unsignalized intersection is set up using the theory of Markov stochastic processes.Therefore,the capacity theory of unsignalized intersection with mixed traffic stream is improved.