摘要
基于1989—2010年武汉城市圈城乡道路网空间数据库,引入时空距离通达性模型,从中心—外围节点通达性和城乡节点—节点通达性两个方面,定量分析武汉城市圈城乡通达性变化及其空间格局。发现武汉城市圈通达性基本遵循距离衰减律,形成以武汉为中心的靶形结构,呈现由核心—边缘式向等级圈层式渐进演化的空间格局。另外,由于城乡道路网分布的不均匀,因地形地貌发育、线路技术等级和节点社会经济水平等差异性,导致整个路网空间伺服效能存在空间异质性,整体呈现不规则化、层级分异化和网络均衡化格局。
Based on the urban-rural road network （URRN） data of 1989,1995,2000,2005,2010 in Wuhan metropolitan area （WMA）, the time-space distance accessibility model is introduced and then the spatial structure and its evolution of accessibility of URRN within the last 20 years in WMA are performed from the two aspects of the center - peripheral node accessibility and urban nodes-rural nodes accessibility. The study reveals that during 1989-2010 years, the road accessibility in WMA follows the distance decay rule, presenting a complex spatial structure which evolves from center-periphery distribution to rank-circle pattern, forming a target-shaped structure taking Wuhan city as the center. Moreover, due to the uneven distribution of URRN, the topography growth, the category of roads and the difference of socio-economy development between urban and rural, the entire road network space servo performance exist spatial heterogeneity, overall displaying an irregular spatial pattern with an obvious level differentiation, but showing a growth trend of equalization.
出处
《经济地理》
CSSCI
北大核心
2013年第9期43-50,64,共9页
Economic Geography
基金
国家自然科学基金项目(41201130
41101361
41371183)
国家社会科学基金项目(11CJL048)
华中师范大学中央高校基本科研业务费(CCNU13A05003)
关键词
时空距离通达性
空间演化
城乡道路网
武汉城市圈
accessibility
space-time distance
spatial evolution
urban-rural road network
Wuhan metropolitan area
