健康城市视角下的紧凑城市形态量化指标体系研究：以苏南城市为例

This project reexamines the theory of Compact City, using advanced 3-D GIS tool of CityEngine for quantitative research of compact urban form in China and using cities in South-Jiangsu region for case studies. It aims to reveal the correlation between compact urban form and healthy city indexes in order to establish a new compact city indicators system. Compared to existing studies of the compact city mainly concerned by qualitative description and macro-scale data, this project focuses on the spatial planning at the median-scales ranging from city block to district, and proposes implementable compact city strategies through modeling and simulation. The research will be carried out through the following steps: 1) establish a key indicator system for compact city; 2) clarify the indexes of the healthy city; 3) build an CityEngine model to simulate the correlation between urban form and urban environmental quality; and 4) use cities in Southern Jiangsu Province as samples of study, collecting the data of their urban forms and local climate and putting it into CityEngine in order to generate an optimized set of indicators of compact city. In the context of China’s healthy city agenda, the compact city indicators system will lay a scientific foundation for more effective urban design, inspire the wide effort of urban renewal based on small-block model, promote public health in the city, and support the transformation of Chinese cities toward a sustainable model from theoretical, practical, and political aspects.

本项目在对紧凑城市理论批判与再挖掘基础上，运用CityEngine系统对紧凑城市形态进行参数化研究，并以苏南城市为样本实证分析，研究城市紧凑性与城市环境指标的相关性，据此建构支持我国健康城市目标的紧凑城市关键指标体系。相较于目前学术界对紧凑城市的研究止于定性描述和宏观指标，本课题着眼于从街区至分区这个中观尺度的空间规划，通过模型提炼形态指标，模拟并量化分析其对健康城市环境的影响以发展可操作的紧凑城市策略。研究基于以下逻辑：1）建构紧凑城市形态参数体系，2）筛选健康城市指标，3）运用CityEngine建构紧凑城市参数与健康城市指标之间的相关性模型，4）采集苏南城市空间地理数据进行可视化模型演算达成优化指标体系。在健康中国背景下，紧凑城市指标体系将为城市设计的落地和精细化提供科学依据，对推动小街区模式的城市更新、提升公共健康产生积极影响，为城市发展模式的可持续转型提供理论、实践和政策支持。

本项目在对紧凑城市理论批判与再挖掘基础上，运用ArcGIS系统和多源数据对紧凑城市形态进行参数化研究，并以苏南城市为样本实证分析，研究城市紧凑性与城市环境指标的相关性，据此建构支持我国健康城市目标的紧凑城市关键指标体系。相较于目前学术界对紧凑城市的研究止于定性描述和宏观指标，本课题着眼于从街区至分区这个中观尺度的空间规划，通过模型提炼形态指标，模拟并量化分析其对健康城市环境的影响以发展可操作的紧凑城市策略。研究基于以下逻辑：1）建构紧凑城市形态参数体系，2）筛选健康城市指标，3）运用ArcGIS系统和多源数据建构紧凑城市参数与健康城市指标之间的相关性模型，4）分片区采集步行和非机动车出行等活动数据作为城市活力的指征，5）结合城市空间地理数据进行可视化模型演算达成优化指标体系。在健康中国背景下，紧凑城市指标体系将为城市设计的落地和精细化提供科学依据，对推动小街区模式的城市更新、提升公共健康产生积极影响，为城市发展模式的可持续转型提供理论、实践和政策支持。