考虑路段权重的城市交通路网拥挤指数研究

Study on Congestion Index of Urban Traffic Network Based on Link Weights

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 study the congestion of urban traffic network deeply,this paper established an index model of urban traffic network congestion based on historical traffic flow data and discussed the change of congestion index of urban traffic network in different time.The results showed that：the selection of parameters and traffic congestion index formula play an important performance to the capability of congestion index.This paper provided a congestion index method to contribute on urban traffic management theory based on fixed link weights of urban traffic network.