Under the background of creating and constructing a“National Scientific Innovative Model District”in Shanghai Yangpu District, this paper gives a case study on“Tongji Union Square”where the creative industry has been concentrating and increasing very quickly in recent years. Through field survey , questionnaire interviews and design analysis, the paper points out that the social function of informal exchanges places should be paid more attention during spatial planning and design, the spatial system of informal exchange places need to be formulated from multi levels, thus to enhance the quality of public space environment of an innovative city.% 针对上海市杨浦区创建“国家科技创新型示范城区”的规划建设,从“非正式交往场所”的视角,结合杨浦区创新型产业高度集聚的“同济联合广场”案例实地调查和问卷访谈。提出应重视非正式交往场所的社会功能,多层次建构创新型城市非正式交往场所的空间系统,制定相应的规划设计对策,提升创新型城市公共空间环境的品质。
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