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为了在区域内分析高等级路网交通状态,建立了一种区域高等级路网交通状态分析模型。首先分析路网结构并对路段的交通状态进行识别分类,建立在实时交通状态下的区域高等级路网模型;然后基于路网模型运用系统结构分析法建立路网交通状态分析模型,根据不同交通状态分析需求得到不同的交通状态可达矩阵,并对可达矩阵分层分析。实例分析表明:该模型能够有效地判别路网中节点的可达性和连通性,描述路网的交通状态时空变化规律,若通过及时发布信息,出行者可根据不同的信息需求来选择最优路径,避免大范围拥挤,从而提高整个路网的运行效率。
In order to analyze the traffic status of high-grade road network in the region, a regional high-level road network traffic status analysis model was established. Firstly, the road network structure is analyzed and the traffic status of the road section is identified and classified, and the regional high-level road network model under real-time traffic conditions is established. Then, the traffic structural analysis model of road network is established based on the road network model, The state analysis needs to get different traffic state reachability matrices, and stratify the reachability matrix. The case study shows that this model can effectively distinguish the nodes’ reachability and connectivity in the road network and describe the temporal and spatial variation of the traffic conditions of the road network. If the information is released in time, the traveler can choose the optimal information according to different information needs Path, to avoid a wide range of congestion, thereby enhancing the efficiency of the entire road network.