无信号交叉口通行能力

Traffic flow capacity at unsignalized intersection of road

以可接受间隙理论为基础,利用概率分析方法,对由多种车型组成的混合车流进行了分析,在无控交叉口主路车流车头时距服从二阶Erlang分布条件下,建立了支路多车型混合车流的通行能力模型,发展了无控交叉口的混合车流通行能力理论,通过实例分析,并与其他模型比较,本模型计算结果更接近实际情况,相对误差只有16.6%。

Based on the gap acceptance theory, the mixed traffic flow was analyzed with probability method. When the flow at major lane of unsignalized intersection follows two-class Erlang dis-tribution, the traffic capacity model of mixed flow at branch lane was developed. With an exam-ple, its calculation results were compared with the ones by other models. The results indicate that this model is more accurate, its error is 16.6%. 3 tabs,9 refs.