PROGRESS IN GEOGRAPHY ›› 2010, Vol. 29 ›› Issue (6): 709-715.doi: 10.11820/dlkxjz.2010.06.010

• Original Articles • Previous Articles     Next Articles

Level and Spatial Pattern of Interprovincial Accessibility Before and After Train-speed Upgrading

MENG Deyou1, FAN Kuangsheng1, LU Yuqi2, GAO Chao3   

  1. 1. Department of Environment and Urban Planning, Shangqiu Normal University, Shangqiu 476000;Henan, China;
    2. Colllege of Geographical Science, Nanjing Normal University, Nanjing 210046, China;
    3. Department of Resource Management, Tangshan Normal University, Tangshan 063000, Hebei, China
  • Received:2009-10-01 Revised:2010-01-01 Online:2010-06-25 Published:2010-06-25

Abstract:

Rail transportation has been considered to be one of the most importment modes of transportation at present. And, the promotion of accessibility of railway can play an importment role in imporving interprovincial social-economic communications. In the paper, provincial capital cities are assumed to be the nodes in the railway network, and taking weighted average shortest travel time between provincial capital cities in 2003 and 2007 as target, the evolution and spatial pattern of interprovincial accessibility are measured and contrasted before and after the 5th and 6th train-speed network upgrading. Results show that, through fifth and sixth upgrading, the accessibility level has been greatly improved all over the country, and particularly, the accessibility promotion are higher in west provinces than the others. The stepped spatial pattern of the accessibiliy level that reduces gradually from the east coastal provinces to the northwest provinces in China has appeared. The scope of the accessibility central zone is expanding gradually, and the primary railway line are becoming stronger and stronger. On the contrary, the accessibility variation are increasing from the east coastal provinces to the northwest provinces, and the zone along the railway from the Lanzhou to the Urumchi is becoming the zone with the maximum accessibility variation. The significance and function of railway upgrading to the promotion of accessibility and the strengtherning of regional social-economic communication are confirmed objectively by analyzing the evolution and spatial pattern of railway accessibility.

Key words: accessibility, China, railway transportation network, train-speed upgrading