RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2007, Vol. 16 >> Issue (6): 726-726.

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IMPACT OF REGIONAL EXPRESSWAY NETWORK ON THE ACCESSIBILITY PATTERN—THE CASE OF THE BELT ALONG THE YANGTZE RIVER IN ANHUI PROVINCE

WU Wei1|2| CAO Youhui1| CAO Weidong1|2| XU Jian1|2| WANG Yue1|2   

  • Received:1900-01-01 Revised:1900-01-01 Online:2007-11-20

Abstract:

Taking the case of the belt along the Yangtze River in Anhui Province，selecting weighted mean travel times as indicator，the impact of regional expressway network construction on the accessibility pattern of internal and exterior region was analyzed.The evolution pattern in the integrated accessibility was elaborated in this paper.The variation extent of integrated accessibility and its relative accessibility pattern was also discussed.Based on the above,some conclusions were drawn as the followings:the construction of expressway network will greatly improve the regional accessibility，and contribute to the equilibrium of accessibility distribution as well;the internal，exterior and integrated accessibility pattern are different from each other，so are the impacts caused by the expressway network construction;the east and the north is lower than the southwest in the extent of accessibility variation;according to the variation extent and direction in accessibility coefficients after the construction，the nodes are divided into three categories—nodes with declined，little changed and improved relative accessibility,respectively.

Key words: accessibility, expressway network, weighted mean travel time, accessibility coefficient, belt along the Yangtze River

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