交通基础设施作为城市节点的形态演进--以巴塞罗那加泰罗尼亚荣耀广场为例

Morphological Evolution of Traffic Infrastructure as Urban Nodes:A Case Study on Pla?a de les Glòries Catalanes in Barcelona

基础设施不仅是支撑当代城市运行的基本系统和底层结构,也是城市形态演进历程背后重要的推动力量。巴塞罗那的加泰罗尼亚荣耀广场即是这方面的一个重要案例。作为塞尔达格网中的一个关键节点,荣耀广场的交通基础设施在四个历史阶段分别呈现出完全不同的形态格局,深刻影响和改变着这一地段的城市空间。第一、二阶段形态基于单纯的交通理性,造成了碎片化的城市空间。第三阶段的关键性改造,将其凝聚为城市中重要的节点空间。第四阶段则进一步走向开放,引导城市空间成为更为人性化的城市场所。这一从"通道"到"节点"再到"场所"的历程鲜明地揭示出基础设施形态与城市空间、城市形态演进的密切关联。

Infrastructure is not only the basic system and fundamental structure supporting contemporary urban operations,but also important driving power behind the evolution of urban morphology.Pla?a de les Glòries Catalanes in Barcelona is one of important cases.As a key point in the Cerda’s grid,traffic infrastructures in the Plaza presented completely different morphological patterns in four historical stages,which profoundly affected and changed the urban space.The form of infrastructures in the first and second phases were simply based on traffic rationality,which had resulted in fragmented urban space.Renovation in the third stage condensed the Plaza into an important node of the city.In the fourth stage the Plaza opened itself and transferred into a humanized urban place.Development of the Plaza from"passage"to"node"and to"place"clearly reveals the close relationship between urban infrastructures and revolution of urban space and urban morphology.