论文部分内容阅读
针对我国欠缺研究东西方向、尤其是中西部欠发达地区高速铁路的状况,以汉宜高速铁路为例,选取加权平均旅行时间分析城市可达性空间格局变化,运用时间距离引力模型测量城市经济联系强度,并依据经济联系隶属度确定城市经济联系方向.结果表明,汉宜高铁促进江汉平原沿线城市可达性水平显著提高,实现地理时空有效收敛;推动城市经济联系强度显著增长,有效减缓城市间联系受距离衰减的作用;促使城市的主要经济联系方向从“中心城市指向性”向“地域相邻指向性”转变,空间近邻效应越来越明显.通过对汉宜高铁建成前后的对比分析,明晰高速铁路建设的空间经济意义,廓清城市的空间发展导向,为区域国土空间开发提供参考.
Aiming at the lack of research on the east-west high-speed railways in our country, especially the high-speed railways in the central and western less developed regions, taking the Han-Yi high-speed railway as an example, we choose the weighted average travel time to analyze the change of spatial pattern of urban accessibility and measure the urban economic connection by using time distance gravity model And the degree of urban economic link was determined according to the degree of economic affiliation.The results show that the level of urban accessibility of Han-Yi high-speed rail has been significantly improved and the spatial and temporal convergence of geography has been achieved, the intensity of urban economic connection has been significantly increased, The relationship between the two cities will be affected by the decay of distance and the major economic linkages of cities will be changed from the directionality of the center city to the direction of the geographical proximity of the central city, , Make clear the spatial and economic significance of high-speed railway construction, clarify the orientation of urban spatial development, and provide a reference for the development of regional land and space in the region.