论文推送 | 城市公共空间失序的要素识别、测度、外部性与干预
本期为大家推介的内容为论文《城市公共空间失序的要素识别、测度、外部性与干预》(Element Identification, Measurement, Impacts Evaluation and Spatial Intervention of Disordered Urban Public Space)，发表在《时代建筑》，欢迎大家学习与交流。
在城市空间建设与品质提升的背景下，需要关注粗放式城市发展与建设所导致的空间品质良莠不齐现象，如老城区空间老旧缺乏维护，而部分新城区建设用地闲置、环境衰败等。借鉴社会学概念和理论，这种空间品质不足、空间秩序混乱的现象被定义为物质空间失序。在新数据的时代背景下，研究基于街景图片的非现场建成环境审计方法，对北京五环内的城市空间失序现象进行了测度与评价，发现北京五环内不同程度地存在空间失序的现象，70436 个街景点中存在空间失序的比例达到了 50.1%，建筑外立面老旧、道路破损等是影响北京城市空间品质的主要失序要素，而空间失序将对城市活力产生负面影响。研究还开展了空间干预实验，发现基于具体失序要素的微观干预措施能显著改善街道环境。通过对城市空间品质低下甚至失序的公共空间进行测度、落位与规律识别，将为未来进一步的城市精细化管理与城市更新提供重要依据。
题目：《城市公共空间失序的要素识别、测度、外部性与干预》
（Element Identification, Measurement, Impacts Evaluation and Spatial Intervention of Disordered Urban Public Space）
作者：陈婧佳、龙 瀛
发表刊物：《》2021年第1期
更多关于城市空间失序的研究工作详见https://www.beijingcitylab.com/projects-1/49-spatial-disorder-in-china/（或点击文末“阅读原文”）
摘要ABSTRACT
Under the call of the construction and quality improvement of urban space, the current uneven quality of the space caused by extensive urban development is worthy of attention, given the lack of maintenance of the old city core, the brown filed and vacant land, as well as the decay of the urban environment that is common in many cities. Drawing on a concept from sociology, this phenomenon of poor space quality and chaotic space order is defined as a physical disorder of urban space. With a new method of off-site built environment audits based on street view images, this study measures and evaluates the physical disorder of urban space within Beijing's Fifth Ring Road area. It finds that varying degrees of physical disorder is spread in this area, where the disorder has reached 50.1% among the 70,436 street points. The unkempt façades of buildings and roads lacking maintenance were the main factors of disorder that affect the quality of urban space in Beijing, leaving a negative impact on the vitality of the space. This study also carries out spatial intervention experiments that target specific disorder factors and can significantly improve the space. The large scale measurement of public spaces of poor quality or even disordered space provides an important basis for refined management and intervention of cities in the future.
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