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中国区域交通优势度评价:网络密度、邻近性及可达性(英文)
被引:51
|作者:
金凤君
[1
]
王成金
[1
]
李秀伟
[1
]
王娇娥
[1
]
机构:
[1] Institute of Geographic Sciences and Natural Resources Research,CAS
基金:
中国国家自然科学基金;
关键词:
transport dominance;
density;
proximity;
accessibility;
China;
D O I:
暂无
中图分类号:
U11 [综合运输体制与结构];
学科分类号:
08 ;
0823 ;
摘要:
Transport infrastructure plays an important role in shaping the configuration of spatial socio-economic structures and influences regional accessibility.This paper defines transport dominance from three aspects:quality,quantity,and advantage,measured by density,proximity,and accessibility indices.County is the basic unit for analysis.The results reveal:(1)Transport dominance statistically follows a partial normal distribution.A very few counties,1.4%of the total,have extremely high transport dominance which strongly supports the socio-economic development in these areas.In contrast,one eighth of all counties have poor transport dominance which impedes local socio-economic development to some extent. The remaining areas,about 70%of the counties,have median transport dominance.(2) Transport dominance is spatially unevenly distributed,with values decreasing gradually from the coastal area to the inland area.Areas in the first-highest level of transport dominance are mainly concentrated in the Yangtze River Delta,the Greater Beijing area,and the Pearl River Delta.Areas in the second-highest level are focused in Chengdu,Chongqing,and Wuhan metropolitan areas.Provincial capitals and a few other counties belong to the third-highest level.
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页码:295 / 309
页数:15
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