武汉城市圈城乡道路网拓扑通达性的时空演化

发布时间：2018-01-20 08:08

本文关键词： 拓扑通达性时空演化城乡道路网武汉城市圈　出处：《长江流域资源与环境》2014年02期 　论文类型：期刊论文

【摘要】：以武汉城市圈为例,基于1989~2010年加权城乡道路网拓扑空间数据库和网络发育评价模型,对武汉城市圈20多年来城乡道路网发育程度进行动态分析和空间演化的研究。结果表明:20多年来武汉城市圈高速城乡道路网发育程度明显改善,经历了由树状网络—回路网络—网络拓展阶段,但路网空间生长尚未饱和,外向拓展和内部充填的潜力较大;通达性重心和中心的空间迁移变化不明显,囿于武汉市城区,宏观上保持高度的稳定性,但其微观格局存在跳跃性和突变性;圈域城乡节点拓扑通达性指数空间分布呈现"不均衡→相对均衡"的动态变化,但整体上仍存在明显的空间分异和集聚;武汉城市圈城乡道路网通达性分布与城乡节点发育、城乡社会经济发展水平密切相关,在空间上已开始打破"核心-边缘"的特点,呈现等级圈层发展的趋势。
[Abstract]:Taking Wuhan urban circle as an example, based on weighted urban and rural road network topology spatial database and network development evaluation model from 1989 to 2010. The dynamic analysis and spatial evolution of urban and rural road network development in Wuhan urban circle over the past 20 years have been carried out. The results show that the development degree of high-speed urban and rural road network in Wuhan urban circle has obviously improved in the past 20 years. It has gone through the stage of tree-network, loop network-network expansion, but the space growth of the road network is not yet saturated, and the potential of outward expansion and internal filling is great. The spatial migration of the accessible center of gravity and center is not obvious, confined to the urban area of Wuhan, maintaining a high degree of stability macroscopically, but its micro pattern exists jump and mutation; The spatial distribution of topological accessibility index of urban and rural nodes in the circle region is "unbalanced" 鈫扵he dynamic change of relative equilibrium, but there is still obvious spatial differentiation and agglomeration on the whole; The accessibility distribution of urban and rural road network in Wuhan urban circle is closely related to the development of urban and rural nodes and the level of social and economic development of urban and rural areas.
【作者单位】：华中师范大学城市与环境科学学院;湖北大学中国旅游案例教学与研究中心;西南交通大学地球科学与环境工程学院;
【基金】：国家自然科学基金项目(41201130、41101361) 国家社会科学基金项目(11CJL048)
【分类号】：U412.1
【正文快照】： 21世纪,中国城市化进入快速发展时期,已成为影响人类发展进程的两大关键因素之一[1]。都市圈经济发展模式与运行体制处于深刻大转型期,都市圈运行的结构性问题日益突出。2007年12月,武汉城市圈获批“全国资源节约型和环境友好型社会建设综合配套改革试验区”,并获得“先试先行

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