文章摘要
拆除或维持:刍议美国辛辛那提城市空中步道系统之利弊
Demolition or maintenance:Discussion on the Advantages and Disadvantages of the Urban Skywalk System in Cincinnati, USA
投稿时间:2024-01-30  修订日期:2024-04-30
DOI:10.12285/jzs.20240130002
中文关键词: 空中步道 城市更新 拆除 维持 利弊
英文关键词: skywalk system  urban renewal  demolition  maintenance  advantages and disadvantages
基金项目:
作者单位邮编
胡映东* 北京交通大学 100044
张筱倩 北京交通大学 
马乐彤 西北农林科技大学 
付鑫 西北农林科技大学 风景园林艺术学院 
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中文摘要:
      空中步道在世界范围内经历了从兴建到拆除,再到维持中更新的演进过程,但降低街道活力、破坏街景、造成社会分化等长期诟病空中步道的指责,并未得到综合而有效的论证。城市空中步道系统的拆除与维持究竟是利是弊,目前的效用如何?研究以辛辛那提城市中心区的空中步道体系为对象,对店铺受欢迎程度、犯罪率、步行可达范围、街道遮蔽率等关键定量指标进行实证和模拟分析,认为空中步道对于提高步行可达性、舒适度、安全性效果显著,不会削弱街道活力和底层商业价值,且在促进社会包容和多元价值实现上已经并将持续发挥积极作用。当下中国城市立体步行体系中,与地下步行网络相比,空中步道受关注程度低,研究成果更显匮乏,制约了决策者和建筑师对于这一城市空间塑造手段的判断。因此,对经典案例展开细致剖析具有较强的理论和现实意义,并为高密城市新建和更新空中步道提供决策、规模、形式等建议。
英文摘要:
      Worldwide, skywalk have an evolutionary process from construction to demolition, and then to maintenance and renewal. However, the long-standing criticisms of the skywalks, such as reducing street vitality, damaging street scenery, and causing social differentiation, have not been comprehensively and effectively demonstrated. What are the advantages and disadvantages of dismantling and maintaining urban sky walk systems, and how effective are they? The study focuses on the skywalk systems in the downtown of Cincinnati, and conducts empirical and simulation analysis on key quantitative indicators such as store popularity, crime rate, walking range, and street coverage. It is believed that the sky walk system have a significant effect on improving walking accessibility, comfort, and safety, without weakening street vitality and underlying commercial value. They have already and will continue to play a positive role in promoting social inclusion and the realization of diverse values. In the current three-dimensional pedestrian system in Chinese cities, compared with underground pedestrian networks, skywalks have received less attention and research results are even more scarce, which has restricted the judgment of planners and architects on this means of shaping urban space. Therefore, detailed analysis of classic cases has strong theoretical and practical significance, and provides suggestions on decision-making, scale, form and other aspects for the new construction and renewal of skywalks in high-density cities.
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