扬子江城市群高速公路网交通需求和空间联系结构分析  

Traffic Demand and Spatial Structure Analysis of Yangtze River Agglomeration Expressway Network

作　　者：刘晓磊 段征宇[1] 仲小飞 LIU Xiaolei;DUAN Zhengyu;ZHONG Xiaofei(Key Laboratory of Road Traffic Engineering of the Ministry of Education,Tongji University,Shanghai 201804,China;China Design Group Co.,Ltd,Nanjing,210014,China)

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海201804 [2]中设设计集团股份有限公司,南京210014

出　　处：《交通与运输》2020年第4期5-10,共6页Traffic & Transportation

基　　金：江苏省交通运输科技项目(城市群交通规划方法和应用技术研究,编号:2018Y32)。

摘　　要：探索扬子江城市群交通需求及空间联系结构特征,为综合交通运输系统规划和管理提供基础。基于高速公路断面流量数据及地理信息系统数据,建立了OD反推模型,结合产业GDP、人口数等要素,揭示扬子江城市群交通需求特征;运用位序-规模分析、优势流分析和网络结构分析方法探究各城市在城市群体系中的地位、城市群空间联系结构等。研究发现,各城市交通量与城市GDP显著相关,客货车流量与第二产业值呈正相关性;扬子江城市群整体发展较为均衡,网络流量分布均匀,呈现无层级结构,货车流量比客车流量分布更均匀,城市节点流量的流入、流出基本无方向性差异。苏州在城市群交通网络中的核心地位突出,南京、南通、常州和无锡的地位也较高。To explore the characteristics of the traffic demand and spatial structure of the Yangtze River agglomeration,and to provide a basis for the planning and management of comprehensive transportation systems.Based on expressway cross-section flow data and geographic information system data,this paper establishes an OD estimation model,combining industrial GDP,population,and other factors,to reveal the traffic demand characteristics of the Yangtze River agglomeration.In addition,the status of each city in the urban agglomeration system and the spatial structure of the urban agglomeration are studied by using order-scale analysis,dominant flow analysis,and network structure analysis methods.It is found that the traffic volume of each city is significantly related to urban GDP,the passenger traffic and freight traffic flow are positively correlated with the GDP of the secondary industry.The urban agglomeration network traffic flow is evenly distributed and has no hierarchical structure.The freight traffic flow is more evenly distributed than the passenger traffic flow.There is barely directional difference in the inflow and outflow of urban node traffic.Suzhou has a core position in the urban agglomeration transportation network,and Nanjing,Nantong,Changzhou and Wuxi also have high positions.

关 键 词：扬子江城市群 高速公路 OD反推 交通需求 网络结构分析 

分 类 号：U491[交通运输工程—交通运输规划与管理]