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为了深入研究城市交通路网拥挤,应用历史交通流数据建立了城市交通路网拥挤指数模型。探讨了不同时间段城市交通路网的拥挤指数变化。研究结果表明:交通参数的选择和指数公式的确定是影响交通拥挤指数性能的主要原因,基于路段平均流量计算路段权重的城市交通路网拥挤指数为城市交通管理研究提供了一定的理论基础。
In order to further study congestion of urban traffic network, a model of congestion index of urban traffic network is established by using historical traffic flow data. The congestion index of urban traffic network in different time periods is discussed. The results show that the selection of traffic parameters and the determination of exponential formula are the main factors affecting the performance of traffic congestion index. The congestion index of urban traffic network based on the average traffic flow of road sections provides a theoretical basis for the study of urban traffic management.