基于内外联系的湖北省交通网络可达性格局研究

Accessibility Pattern of Traffic Network of Hubei Province Based on Internal and External Links

以湖北省103个三级行政区划为研究对象,本文运用加权平均旅行时间、可达性系数指标分析了湖北省公路网、普铁网、高铁网、民航网4种单一交通网络和综合交通网络的省内及省外可达性格局。结果表明:(1)由于地理空间区位的不同,省内可达性和省外可达性具有明显空间分异现象;(2)省外可达性对省内可达性依赖几何形心的现象具有一定纠正作用,内外联系地测定可达性更符合实际;(3)普铁网、高铁网和民航网可达性均具有很大地域差异,薄弱地区是今后交通网络建设的重点对象。

Taking 103 three level administrative divisions in Hubei as research objects,this paper uses weighted average travel time, accessibility coefficient to analyze the accessibility pattern of four single traffic networks and integrated traffic network(road network, universal rail network, high-speed rail network, civil aviation network)inside and outside of the Hubei Province. The result shows that: Accessibility inside and outside of the region has obvious spatial differentiation phenomenon due to the geographical location difference;External accessibility has a certain correction effect on the phenomenon of internal accessibility’s dependence on the geometric centroid, and measurement of a combination of internal accessibility and external accessibility is more in line with reality;The accessibility of general railway network, high-speed railway network and civil aviation network varies greatly from region to region with weak areas the key objects of traffic network construction in the future.