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作 者:张勤宇 帅斌[1] 吕敏 ZHANG Qin-yu;SHUAI Bin;LV Min(School of Transportation and Logistics,Southwest Jiaotong University,Chengdu 611756,China)
机构地区:[1]西南交通大学,交通运输与物流学院,成都611756
出 处:《交通运输工程与信息学报》2021年第4期98-105,共8页Journal of Transportation Engineering and Information
基 金:国家自然科学基金项目(71173177)。
摘 要:《国家综合立体交通网规划纲要》中提出要加快建设高效率国家综合立体交通网主骨架。本文借助复杂网络相关理论,以L空间方法构建了国家综合立体交通网主骨架区域网络与城市网络,分析了区域与城市之间的连接情况。结果表明:在由21个重点区域构成的区域网络中,每个重点区域与其他区域至少有2条路径相连接,且区域网络具有小世界的特点,说明重点区域之间连接紧密,可靠性强。在由116个节点构成的城市网络中,城市间连边以极、组群、组团等不同类型重点区域城市之间的连边为主;在考虑城市空间距离的加权网络中,重庆、西安等节点重要度较高,建议重点关注各种交通方式在这些节点的相互衔接情况以提升运输效率。在鲁棒性分析中,发现加权网络对随机攻击和基于接近度中心性的蓄意攻击鲁棒性较好,而对基于介数中心性和PageRank中心性的蓄意攻击鲁棒性较差。通过对主骨架的网络特性进行分析并识别其重要节点,本文研究结果不仅证实了主骨架规划的合理性,还可为重点区域及城市的综合交通运输规划提供其连接情况、支撑作用与拓扑重要性等理论层面的参考。The planning outline has raised the issue of the procedure for constructing a high efficiency national integrated stereoscopic transportation network basic framework.This paper examined the basic framework of the region network and city network in L-Space,and used complex network theory to analyze the connections between regions and cities.The results are as follows.In the region network,each of the 21 important regions has at least two routes to other regions,and the network has a small-world property,indicating that the connections between important regions are close and reliable.In the city network with 116 nodes,the edges are mainly between cities in different important regions.In the distance-weighted network,nodes such as Chongqing and Xi’an have high centrality,and we advise that the interconnection between different means of transport at these nodes be specially concentrated to boost transportation efficiency.The robustness analysis showed that the weighted network is relatively robust under random attacks and malicious attacks based on closeness centrality,but performs worse under malicious attacks based on betweenness centrality or PageRank centrality.By analyzing the network properties and identifying the vital nodes of the basic framework,we not only demonstrate the rationality of the basic framework,but also provide a theoretical discussion of such issues as connection status,supporting role,and topological importance that might serve as reference for the integrated transportation planning of vital regions and cities.
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