从隔离到弥合--“通道”更新的语境与实践

From Segregation to Integration:The Context and Practice of“Passage”Regeneration

道路、桥梁、隧道等线性基础设施空间承载了城市发展所需的物质、能量与人口要素的转运功能,带动了城市的扩张蔓延。在城市化后期,这种原本只为机动性与通达性服务的市政构筑物成为割裂城市空间、制造社会隔离的藩篱。文章回顾了边缘理论及"通道空间公共化"的经典论述,提出优化通道空间以弥合城市空间裂缝的4个标准,并以此为据分析和评价当下中国建筑实践中"边缘"弥合的案例,衡量市政设施建设的得失,为后工业化时代基础设施要素向人居空间的持续转化提供参考。

The linear infrastructure space,such as motorway,bridge and tunnel,carries the transportation function of material,energy and labor needed for urban development,which leads to the relentless sprawl of the city.In the late stage of urbanization,this kind of infrastructural elements,which was originally built merely for mobility and accessibility,became obstacles to segregate urban spaces and create social isolation.This paper reviews the classic discussion on"border"and"publicization of passage space"and seeks to bridge the gaps in the city with a set of criteria.The paper also reviews a few recent Chinese design practices of municipal facilities by the performance of the"edge space reconstruction,"and provides a reference for the sustainable transformation of infrastructural elements into habitable space in the post-industrial era.