三维空间网络分析对步行可达性的定量评价——以上海浦东足球场周边地区城市设计为例  

Three-dimensional Spatial Network Analysis and Application Exploration in Quantitative Evaluation of Walking Accessibility—A Case Study on the Urban Design of the Area around Shanghai Pudong Football Stadium

作　　者：韩斯桁 陈泳[2] 张灵珠[1] HAN Siheng;CHEN Yong;ZHANG Lingzhu

机构地区：[1]同济大学建筑与城市规划学院 [2]高密度人居环境生态与节能教育部重点实验室、生态化城市设计国际合作联合实验室、同济大学建筑与城市规划学院

出　　处：《住宅科技》2021年第4期16-21,43,共7页Housing Science

基　　金：国家自然科学基金资助项目“机动化时代街区宜步行的关键形态指标及优化方法研究”(编号:51278339);“街区空间形态对老年人步行行为的影响机理及导控研究:以上海为例”(编号:51678414)。

摘　　要：步行可达性作为城市设计方案对空间活力促进作用的评价指标,传统上是依据经验来预测行人活动的分布,往往缺少客观严谨的定量评价。文章以上海浦东足球场周边地区城市设计中三个方案的步行系统为例,应用空间设计网络分析(sDNA)软件对各方案进行步行可达性的三维定量评价。建立不同的情境模型,模拟足球场周边地区不同时段复杂的人群流动情况,以期较为准确地描述人们可能的步行路径以及其中的流量分布。这不仅有助于从三维可视化角度对比城市设计方案中步行网络结构的局部区别对步行活动潜力分布的影响,而且为城市设计师提供了更加科学地描述步行可达性和城市空间活力的理论依据。Pedestrian accessibility,an index of space vitality for evaluating urban design scenarios,has traditionally been based on subjective experiences to predict the distribution of pedestrian activities,usually lacking objective evidence and rigorous quantitative evaluation.Through the use of spatial design network analysis(sDNA)software,this study provides a three-dimensional quantitative evaluation for the pedestrian circulation system of three alternative urban design scenarios for the community around Shanghai Pudong Football Stadium.Possible walking paths and flow distributions around football stadium are evaluated by simulating pedestrian flow movements for different situation models during different periods.This study not only helps to compare the impact of the local differences in pedestrian space morphology and structure on the distribution of pedestrian activity potential from a three-dimensional visualization perspective but also provides a more accurate description of pedestrian accessibility and theoretical basis of urban space vitality for urban designers.

关 键 词：三维空间网络分析 步行可达性 定量评价 方案对比 城市设计 

分 类 号：TU984.2[建筑科学—城市规划与设计]