历史文化名城地铁站域更新策略——基于“节点—场所”拓展模型实证

Renewal Strategies for Metro Station Catchment Areas in Historic and Cultural Cities:Based on the"Node-Place"Model of Suzhou

地铁站域更新涉及面广、针对性强、实施性高,是优化存量空间的重要手段。面向增量开发的TOD模式更为强调经济效益,较难完全彰显历史文化名城更新的多维价值导向,亟待探索更为适配的更新模式与策略。基于“节点—场所”的模型拓展,构建“耦合度—协调度—潜力值”三维更新框架,评估苏州1—5号线154个站点综合更新效能水平,并提出策略:站域分级,引导不同等级站域空间的综合更新方向;时序分段,筛选综合效能高值站域优先更新,制定“一站一策”导则;新老分区,历史城区内及历史要素密集区的站域需前置历史文化保护线要求,严格按照相关法律法规更新;规建分类,加强与城市更新规划、TOD专项规划等衔接,探索苏州在名城保护新阶段的城市更新新试点发展路径。

The renewal of subway station areas involves wide-range and highly-targeted implementations,which is an important means to optimize existing spaces.The TOD model for incremental development places more emphasis on economic benefits,making it difficult to fully demonstrate the multi-dimensional value orientation of urban renewal.It is urgent to explore more suitable renewal models and strategies.This article is based on the model expansion of"node-place",constructs a three-dimensional framework of"coupling degree-coordination degree-potential value",and evaluates the comprehensive renewal efficiency level of 154 stations on Suzhou Line 1-5.This paper proposes strategies,including(1)site classification,guiding the comprehensive renewal of different levels of site space;(2)time series segmentation,screening comprehensive efficiency of high-value station domains for priority,and formulating"one station,one policy"guidelines;(3)new and old zones,setting ahead the requirements of control lines and strictly protecting historical urban areas in accordance with relevant laws and regulations;(4)classification of planning and construction,strengthening the connection with renewal planning,TOD sector planning,etc.,and exploring the"Suzhou Path"for the new stage of protecting historical and cultural cities.