长江三角洲高速公路网络构建对区域可达性的影响
发布时间：2019-03-15 14:38
【摘要】：高速公路建设有利于缩短地区间的交通里程并节约旅行时间,改善区域间的可达性并有利于地区间的经济联系的增强。以长江三角洲地区为研究区域,基于1992、1998、2004和2010年的公路交通网络数据,采用节点平均交通里程、节点平均迂回系数、节点平均旅行时间和区域平均旅行时间等空间和时间距离指标对长三角地区选定年份的交通可达性及其变化进行测算与比较。研究表明:1)各县市平均交通里程均获得了不同程度的缩短,节点平均迂回系数均获得了不同程度的降低,但不同县市在不同时期的改善幅度存在较大差距,2004 2010年各县市平均交通里程改善幅度最大,尤其是跨江和越海通道建设使长江和杭州湾沿岸县市的迂回度获得了较大幅度的降低;2)随着高速公路的建设,各节点平均旅行时间和区域平均旅行时间均获得了大幅度的改善,尤其是边远地区改善幅度更大,但受交通建设边际效应递减规律的限制,可达性的改善幅度不断减弱。
[Abstract]:The highway construction is beneficial to shorten the traffic mileage and save the travel time, improve the reachability of the region and strengthen the economic connection between the regions. Taking the Yangtze River Delta region as the research area, based on the highway traffic network data of 1992, 1998, 2004 and 2010, the average traffic mileage of nodes and the average roundabout coefficient of nodes are adopted. The spatial and temporal distance indexes, such as node average travel time and regional mean travel time, are used to measure and compare the traffic reachability and its changes in selected years in the Yangtze River Delta region. The results are as follows: 1) the average traffic mileage of each county and city has been shortened in different degrees, and the average roundabout coefficient of nodes has been reduced in different degrees, but there is a big gap in the improvement range of different counties and cities in different periods. 2004 in 2010, the average traffic mileage of counties and cities improved the most, especially the construction of cross-river and sea-crossing channel made the roundabout degree of counties and cities along the Yangtze River and Hangzhou Bay decreased greatly. 2) with the construction of expressway, the average travel time of each node and the average travel time of each region have been greatly improved, especially in the remote areas, but it is restricted by the law of decreasing marginal effect of traffic construction. The improvement in accessibility has been weakening.
【作者单位】： 河南财经政法大学资源与环境学院//中原经济区"三化"协调发展河南省协同创新中心;南京师范大学地理科学学院;唐山师范学院资源管理系;
【基金】：国家自然科学基金项目(41101107) 河南省教育厅人文社会科学研究项目(2014-qn-146) 唐山市科技局指导计划项目(13140227b)“唐山市新型城镇化进程推进对策研究”
【分类号】：U412.366
[Abstract]:The highway construction is beneficial to shorten the traffic mileage and save the travel time, improve the reachability of the region and strengthen the economic connection between the regions. Taking the Yangtze River Delta region as the research area, based on the highway traffic network data of 1992, 1998, 2004 and 2010, the average traffic mileage of nodes and the average roundabout coefficient of nodes are adopted. The spatial and temporal distance indexes, such as node average travel time and regional mean travel time, are used to measure and compare the traffic reachability and its changes in selected years in the Yangtze River Delta region. The results are as follows: 1) the average traffic mileage of each county and city has been shortened in different degrees, and the average roundabout coefficient of nodes has been reduced in different degrees, but there is a big gap in the improvement range of different counties and cities in different periods. 2004 in 2010, the average traffic mileage of counties and cities improved the most, especially the construction of cross-river and sea-crossing channel made the roundabout degree of counties and cities along the Yangtze River and Hangzhou Bay decreased greatly. 2) with the construction of expressway, the average travel time of each node and the average travel time of each region have been greatly improved, especially in the remote areas, but it is restricted by the law of decreasing marginal effect of traffic construction. The improvement in accessibility has been weakening.
【作者单位】： 河南财经政法大学资源与环境学院//中原经济区"三化"协调发展河南省协同创新中心;南京师范大学地理科学学院;唐山师范学院资源管理系;
【基金】：国家自然科学基金项目(41101107) 河南省教育厅人文社会科学研究项目(2014-qn-146) 唐山市科技局指导计划项目(13140227b)“唐山市新型城镇化进程推进对策研究”
【分类号】：U412.366
【参考文献】
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