Study on Spatial-Temporal Evolution of Townships Traffic Accessibility in Inner Mongolia

Abstract

The change of regional transportation accessibility is the basis for the evolution of its spatial pattern. This paper takes the townships in Inner Mongolia as the research object, based on the ArcGIS Network analysis model, the changes and spatial evolution characteristics of traffic accessibility in five time sections from 2001 to 2019 are quantitatively analyzed. The results shows: from 2001 to 2019, the road network construction in Inner Mongolia ushered in rapid development, with road mileage continuously increased, the network structure continuously optimized, and the road level continuously improved; the average accessibility of townships decreased year by year, with township accessibility increased significantly, respectively, with difference in accessibility gradually narrowed; The spatial pattern of township accessibility extends and spreads in an irregular ring to the surrounding areas from the northern part of Chifeng, the northern part of the Zhenglan Banner of Xilin Gol League, Zhengxiangbai Banner, the central part of Ulanqab, and the central part of Hohhot, with accessibility gradually decreased,the northern part of Chifeng, the southern part of Xilingol League, and the central part of Ulanqab have always been in high-level accessibility areas in five time sections,the townships with low level of accessibility are concentrated in the western and northern parts of Hulunbuir and the western region of Alxa League.