基于交通流时空特性的道路网动态划分方法

提出了基于交通流时空特性的道路网动态划分方法,首先根据道路网的空间特性,建立度量各断面相近程度的广义空间距离模型。引进R-Q型因子分析法,对道路网进行空间层面上的划分;然后根据交通流时间特性,以实时获取交通流状态信息为输入,实现道路网的动态划分。最后采用城市快速路网进行实例分析,划分结果表明,子路网各断面交通流量之间具有很强的相似性。

Road network dynamic splitting based on-time-space characteristic of traffic flow

A road network dynamic splitting method was proposed based on the time-space characteristic of traffic flow.A general space distance model was built based on the space characteristic of the road network to measure the distance between the road sections.The R-Q factor analysis method was introduced to split the road network in space according to the general space distance between the road sections.Taking the real-timely acquired traffic flow information as the input,the road network dynamic splitting was realized based on the time characteristic of traffic flow. A case analysis was performed for a urban high-speed road network,the splitting results showed that these is strong similarity between the traffic flows of sections of sub-road network.