改进步行指数模型在城市步行性评价中的应用  

Application of improved walking index model in urban walking evaluation

作　　者：王昊[1] 张泉[2] WANG Hao;ZHANG Quan(Jiangsu Institute of Urban Planning and Design, Nanjing 200014, China;Jiangsu Department of Housing and Urban and Construction, Nanjing 200014, China)

机构地区：[1]江苏省城市规划设计研究院,江苏南京200014 [2]江苏省住房和城乡建设厅,江苏南京200014

出　　处：《交通科技与经济》2018年第3期11-17,61,共8页Technology & Economy in Areas of Communications

基　　金：江苏省基础研究计划(自然科学基金)-面上研究资助项目(BK20151575)

摘　　要：步行指数(Walkability index)是一种量化测度步行性的方法,国内外的诸多研究都表明步行环境对步行出行方式、步行路径选择有显著影响,而既有步行指数模型未能考虑步行者对街道环境的整体感知。研究在既有步行指数模型基础上,进一步考虑步行环境的影响,通过SP调查确定步行环境表征因素,将步行路权形式及步行道宽度、沿线机动车开口密度、沿街界面积极程度及过街道路红线宽度5个影响步行环境的关键因素纳入步行指数影响因素对其进行修正。改进后的模型考虑步行环境和安全性的影响,可更准确地测度步行性,判别步行友好程度及改进方向。最后以张家港市核心区对模型改进前后的结果进行验证。Walking index is an quantitative index to measure the walkability.Many researches have shown that the pedestrian environment has a significant impact on pedestrian trip options,however,the existing walking index model fails to consider the overall perception of pedestrian on the street environment.Based on the revision of pedestrian index,this paper further considers the influence of actual pedestrian environment.In this study,the walkway environment characterization factors are determined by SP survey.The key factors influencing the walking environment,such as the width of pedestrian walkway,the density of motor vehicle entrances along the street,the degree of street interface and the width of streets,are included into the influencing factors of pedestrian index.The index can be used to determine the degree of pedestrian friendship and the direction of the improvement.The improved walking index model considers the influence of walking environment and safety,which can measure the walking characteristics more accurately.The results of the model before and after the improvement are verified in the core area of Zhangjiagang.

关 键 词：步行指数 步行环境评价 步行路权形式 慢行交通 

分 类 号：U121[交通运输工程]