基于节点重要度的公交专用道关键节点识别

Key Nodes Identification of Bus Lane Based on Node Importance

为使公交专用道的路线与城市中大型客流集散点有效地衔接,结合现有道路网节点重要度评价体系与公交专用道建设实际情况,选用节点度、介数指标和站点客流集散量等7个具体指标建立节点重要度评价指标体系。运用主成分分析法确定指标权重,对节点重要度进行综合分析。最后以哈尔滨市道里区路网为实例进行验证,结果表明:识别结果与公交专用道建设的现实相符,工作强度、介数指标以及站点客流集散量为影响公交专用道节点选取的主要因素,所提出的公交专用道关键点识别方法可行、有效。

In order to effectively link the route of the bus lane with the large passenger flow distribution point in the city, combined with the existing road network node importance evaluation system and the actual situation of the bus lane construction, the node degree, the median index and the site passenger flow distribution amount were selected. The principal component analysis method was used to determine the index weights, and the node importance was comprehensively analyzed. Finally, the road network in Daoli District of Harbin was taken as an example for verification, the results show that the recognition results are consistent with the reality of the construction of bus lanes, work intensity, median index and the site passenger flow distribution are the main factors affecting the selection of bus lane nodes. The proposed key point identification method for bus lanes is feasible and effective.