协调节点重要度考量的县域综合运输通道识别

Identification of county comprehensive transportation channels considering the coordination importance model of nodes

根据县域交通特点,构建协调节点重要度模型,提出相应通道布局识别优化方法。引入复杂网络对节点重要度法进行改进,通过网络拓扑特性与位置属性的协调程度确定未来发展的节点重要度。根据计算结果,在分层最优树识别的布局基础方案中引入节点保护环优化布局,提高鲁棒性。实例分析结果表明:该方法能够客观、有效地识别符合县域发展的综合运输通道,弥补上层规划的不足,对加强县域交通建设、提高综合立体交通网络的效率和服务水平有参考意义。

According to the characteristics of the county,the county comprehensive transportation channel is a backbone network based on the highway network,which undertakes the main passenger and freight flow and connects various transportation modes.Based on this,the importance model of coordination nodes is constructed,and the channel layout method is proposed.The model introduces complex network to improve the node importance.The importance of new nodes is determined by the coordination degree of topology attributes and location attributes.Among them,block identification is introduced to determine the division scheme.The location attributes include comprehensive traffic impact and development potential.The node protection ring is introduced into the basic layout scheme to improve the robustness.Examples show that this method can objectively and effectively identify the comprehensive transportation channels in line with the county development,make up for the lack of upper planning and improve the efficiency of comprehensive transportation.