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成渝城市群区域轨道交通网络结构的组织特征及时空演化
王亚风,黄勇,石亚灵
作者单位E-mail
王亚风 武汉市规划设计有限公司 724151972@qq.com 
黄勇 重庆大学建筑城规学院山地城镇建设与新技术教育部重点实验室  
石亚灵 重庆大学建筑城规学院  
摘要:
区域轨道交通网络作为城市间交通运输系统的主要基础设施,对区域空间结构的塑造具有重要影响。以区域轨道交通客运车流组织联系为切入点,从中心性、脆弱度、子群分布、通达性格局4个方面出发,对成渝城市群轨道交通网络结构的组织特征和演化进行了认知。结果表明:(1)中心性。轨道交通网络密度达到历史最低值,网络化空间格局初步显现,城市资源控制力分层明显;(2)脆弱度。轨道交通网络脆弱度各时期不稳定起伏,至2014年,网络稳定性达到最强;(3)子群分布。不同时期的轨道交通网络城市子群分布特征存在差异,已初步形成成德绵乐城市带、渝东南和重庆大都市区3大紧密联系的城市子群;(4)通达性格局。网络连通性能、扩展潜力和整体交通可达性达到历史最优水平,可达性居首位的城市在空间分布上经历了从“荣昌-内江-资阳-重庆主城-潼南”的动态演化过程;(5)阶段划分。成渝城市群区域轨道交通发展可分为稳步建设、完善优化、扩展延伸和网络化4个阶段。
关键词:  成渝城市群  区域轨道交通网络  空间组织  时空演化
DOI:
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基金项目:国家“十二五”科技支撑计划课题2013BAJ13B07。重庆市社会事业与民生保障科技创新专项(cstc2016shmszx0504,2016-2019)。
The Organization Characteristics and Evolvement of Regional Rail Transit Network Structure of Chengdu-Chongqing Urban Agglomeration
Wang Yafeng,Huang yong,Shi Yaling
Abstract:
As the main infrastructure of urban transportation system, regional rail transit network has an important influence on the shaping of regional spatial structure. Taking the passenger flow organization as the starting point, organizational characteristics and evolvement of rail transit network structure are analysized from 4 aspects of centrality, vulnerability, distribution of subgroups and accessibility. Some results have been found: (1) Centrality. Density of regional rail transit network has reached the lowest value. Network right focuses on a few cities, and the level of control of urban resources is obvious. (2) Vulnerability. Network vulnerability period is not stable and network stability is the strongest of all periods in 2014. (3) Distribution of subgroups. In different periods, distribution of urban subgroups is different, and 3 major urban subgroups of Chengdu-Deyang-Mianyang-Leshan City Zone, Southeast of aChongqing and Chongqing metropolitan area are formed initially. (4) Accessibility. Network expansion potential and the overall accessibility have reached the historical optimal level. Accessibility of the first urban space experiences the dynamic evolution process from Neijiang, Rongchang, Ziyang, Chongqing to Tongnan. (5) Stage division. Regional rail transportation development can be divided into 4 stages: steady construction, optimizing, extension and networking period.
Key words:  Chengdu-Chongqing urban agglomeration  regional rail transit network  spatial organization  evolvement