顾及公共交通转换自由度的城市行人路网连通性分析——以成都市中心城区为例  

Connectivity of Pedestrian Networks by Considering Public Transport Transfer Freedom:A Case Study in the Central Urban Area of Chengdu

作　　者：郑雪姣 杨雪[1] 余建华 赵一凡 杨鸿海 唐炉亮[3] ZHENG Xuejiao;YANG Xue;YU Jianhua;ZHAO Yifan;YANG Honghai;TANG Luliang(School of Geography and Information Engineering,China University of Geosciences,Wuhan 430074;Qinghai Key Laboratory of Geomatics Technology and Application,Xining 810001;State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430072,China)

机构地区：[1]中国地质大学(武汉)地理与信息工程学院,湖北武汉430074 [2]青海省地理空间信息技术与应用重点实验室,青海西宁810001 [3]武汉大学测绘遥感信息工程国家重点实验室,湖北武汉430072

出　　处：《地理与地理信息科学》2023年第3期16-22,共7页Geography and Geo-Information Science

基　　金：青海省地理空间信息技术与应用重点实验室开放课题“基于众源轨迹数据的城市路网构建与连通性分析”(QHDX-2020-01);国家自然科学基金青年项目(41901394)。

摘　　要：现有行人路网连通性研究主要从机动车路网角度出发,忽略了包含人行道、人行横道以及公共交通站点布设对行人路网连通性的影响。该文提出一种顾及公共交通转换自由度的行人路网连通性评价模型,并以成都市中心城区为例,对区域内行人路网连通性进行了评价和分析。研究结果表明:①成都市中心城区行人路网连通性呈现圈层式变化格局,公共交通明显降低了路网连通性的两极分化,显著提升了三环内及沿线区域行人步行便利性;②武侯区和金牛区的行人路网连通性高于成华区、锦江区和青羊区,行人路网整体呈现出“西南高、东北低”的空间分布格局;③在考虑公共交通转换因素后,不同街区行人路网连通性差异缩小,需要进一步优化边缘地区行人路网与公共交通的空间布局。As a fundamental infrastructure for residents′daily travel,pedestrian networks play a crucial role in providing convenient and comfortable travel services.Most existing studies analyzed and evaluated the connectivity of urban motorized road networks,ignoring the impacts of sidewalk,crosswalk,public transportation to the connectivity of pedestrian networks.To address this issue,this paper proposes a novel method to evaluate the connectivity of pedestrian networks by combining with public transport transfer freedom.The proposed method constructs a two-factor evaluation model through integrating network structural complexity and public transport transfer freedom.Taking the central urban area of Chengdu as a typical case,the paper analyzes the connectivity of pedestrian networks based on the proposed model.The results indicate that the connectivity of pedestrian networks shows a circular pattern.By integrating public transport systems,the polarization phenomenon of connectivity can be greatly reduced,resulting in a significant improvement in pedestrian travel convenience within the Third Ring Road.Moreover,the connectivity of pedestrian networks in Wuhou District and Jinniu District is obviously higher than that of Chenghua District,Jinjiang District and Qingyang District,showing a spatial pattern of high in the southwest and low in the northeast.Beyond that,although the changes in connectivity of pedestrian networks in different neighborhoods are relatively minor,the spatial layout of pedestrian networks and public transport in marginal areas still requires further optimization to enhance connectivity and accessibility.

关 键 词：众源空间数据 行人路网 连通性分析 公共交通转换 城市规划 

分 类 号：U491.13[交通运输工程—交通运输规划与管理] P208[交通运输工程—道路与铁道工程]