高密度城市轨交站域更新是城市公共空间存量活化的重要课题,步行路网以及路网周边的基础设施对轨交站点人流量的汇聚产生深远影响。伴随着国内各城市轨道交通线路的延长,各个站点客流增量呈现出边际递减的现象。为使轨交站域城市更新中地块开发强度、用地性质、公共设施密度与客流强度更有效地匹配,充分发挥轨交站域各空间要素的集客效应,以深圳市高新中站周边地区城市更新为例。首先,根据现运行良好的客流量与站域开发强度实测数据,确定高新中站属于到达型、出发型、平衡型中的到达型站点;然后,根据高新中站规划客流量与预计开发强度之间的定量关系判断站域城市更新容量未能符合预期;最后,对高新站周边地块地面、地下建筑空间容量、路网结构等相关要素进行量化,对各地块可能的诱增集客潜力进行综合评价,为实现规划容量提供设计依据。
The renewal of the area around high-density urban rail transit stations is an important topic for the revitalization of existing urban public spaces. The pedestrian network and the infrastructure around it have a profound impact on the aggregation of passenger flow at rail transit stations. As urban rail transit lines continue to expand across China, a diminishing marginal effect is observed in the incremental passenger flow at various stations. To ensure a more effective alignment between the development intensity, land use nature, public facility density, and passenger flow intensity in urban renewal projects surrounding rail transit stations, and to fully leverage the agglomeration effects of spatial elements within these areas, this paper takes the urban renewal of the surrounding region of the Hi-Tech Central Station in Shenzhen as a case study. Firstly, based on the empirical data of well-functioning passenger flow and station area development intensity, the Gaoxinzhong Station is identified as an arrival-type station among the categories of arrival, departure, and balanced stations. Secondly, the quantitative relationship between the planned passenger flow and anticipated development intensity at the Hi-Tech Central Station is analyzed, revealing that the urban renewal capacity of the station area fails to meet expectations. Finally, a quantitative assessment is conducted on the ground and underground building space capacity, road network structure, and other relevant factors of the surrounding plots around the Hi-Tech Central Station, and a comprehensive evaluation is made of the potential induced passenger flow aggregation capacity of each plot, providing a design basis for achieving the planned capacity.
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