Assessment on Regional Accessibility Based on Land Transportation Network:A Case Study of the Yangtze River Delta
Received date: 2006-05-18
Revised date: 2006-09-19
Online published: 2006-12-25
Supported by
National Natural Science Foundation of China,No.40371044; No.70573053]
For a given region, internal accessibility and external accessibility should be considered to assess accessibility of each point in the region. Using MapX component and Delphi programming tool, regional accessibility calculation and analysis information system based on minimal pass-time is developed, with which mark diffusing figure could be generated. From the view of time-distance, the present and approaching regional internal accessibility and regional external accessibility of 16 major cities in the Yangtze River Delta are analyzed according to land traffic network. The result shows that, the regional accessibility of the Yangtze River Delta radiates a fan-shaped pattern with Shanghai as the core. The top two cities are Shanghai and Jiaxing. The bottom two cities are Taizhou and Nantong. With the completion of Sutong Bridge, Hangzhouwan Bridge and Zhoushan Bridge, the regional internal accessibility of all cities in the Yangtze River Delta will be improved. Especially for Shaoxing, Ningbo and Taizhou, the regional internal accessibility will be one hour decrease. At the same time, the regional internal accessibility of other cities will be about 25 minutes decrease averagely. As the accomplishment of the Yangkou seaport in Nantong, regional external accessibility with the node of seaport of cities in Jiangsu province will be increased with an average decrease in accessibility by about one hour.
ZHANG Li, LU Yuqi . Assessment on Regional Accessibility Based on Land Transportation Network:A Case Study of the Yangtze River Delta[J]. Acta Geographica Sinica, 2006 , 61(12) : 1235 -1246 . DOI: 10.11821/xb200612001
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