摘要
在交通问题凸显的现实背景及可持续发展的导向下,测算城市公交承载力,识别公交资源的错配问题,有助于优化公交空间配置和城市空间发展。目前,对于交通承载力的研究大多从以交通系统为整体进行研究,而针对常规公交这一特定交通的研究较少,并缺乏对通勤出行的关注。本文基于城市公交系统和居民通勤联系网络,采用复杂网络模型,测算两个复杂网络中节点的加权中心度和联系强度,以公交站点与职住联系网络的节点加权中心度比值作为公交的通勤出行承载力,通过与阈值即研究区域整体平均值比较,分析广州市公交的通勤出行承载力空间格局。结果表明:(1)广州主城区的公交与职住空间网络加权中心度空间结构分布特征相似,在一定程度上也与广州市空间扩展方向呼应,呈现出向北联系、向东迁移的特征;(2)广州主城区的公交通勤出行承载力呈现“核心-边缘”模式,核心区的公交通勤流量负荷较大,而边缘区存在一定公交资源过剩,需要采取调整公交资源分配和供给结构等措施,优化城市公交空间配置。
Under the realistic background of prominent traffic problems and the guidance of sustainable development,measuring the carrying capacity of city public transport and identifying the misallocation of public transport resources are helpful to optimize the allocation of public transport space and urban space development.At present,most studies on transport carrying capacity focus on the transportation system as a whole,while there are few studies on conventional bus,which is a specific transport,and lack of attention to commuting.Based on the city bus system and mobile signaling data under the support of residents commute to contact form two complex networks,by using the complex network model,the weighted center of two nodes in complex networks of degrees and contact strength,with bus stops and post live contact network node weighted ratio as the bearing capacity of bus commuter travel center degree,The spatial pattern of bus commuting carrying capacity in Guangzhou was analyzed by comparing it with the threshold value,namely the overall average value of the study area,and forming an isogram.The results show that:(1)the distribution characteristics of the weighted centrality spatial structure of the public transport network and the work-housing spatial network in Guangzhou are similar,which echoes the spatial expansion direction of Guangzhou to some extent,showing the characteristics of northward connection and eastward migration.(2)The carrying capacity of bus commuting in the main urban area of Guangzhou presents a core-edge mode.The core area has a large load of bus commuting,while the edge area has a certain amount of excessive bus resources.Therefore,it is necessary to adjust the distribution and supply structure of bus resources to optimize the allocation of urban bus space.
作者
黄佳敏
刘望保
HUANG Jiamin;LIU Wangbao(School of Geography,South China Normal University,Guangzhou 510631,China)
出处
《热带地貌》
2022年第1期31-40,共10页
Tropical Geomorphology
关键词
广州
通勤出行承载力
复杂网络
中心性结构
空间配置
Guangzhou
commuting carrying capacity
complex network
centrality structure
spatial configuration
