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吴春花 《建筑技艺》（AT）执行主编

“公共性”是一个既古老而又常谈常新的话题，当城市变得越来越复杂多元，我们越来越需要向内挖掘公共空间的品质和潜力，真正实现更可持续的发展。因此，“公共设施之公共性”尤显重要，怎样面对现实，以创造性的思考去发现和拓展意想不到的可能性，仍然值得我们持续探讨。

对于公共设施，本期专题特别选择了社区中心、驿站、基础设施这些面向大众、天然具有公共性的新建或改造空间。当公共性成为这些实践的共同指向，我们看到不同情境下的不同策略，既有面对校园空间不足时，改造地铁基础设施，为体育运动和休闲活动拓展空间的大胆尝试，也有在满足排涝泵站基础功能之上，拓展出的江堤景观带公共服务提升设计；既有复合档案馆和社区文化中心的整合共享、立体串联的公共空间体系建构，也有以剖面设计高效集约组织医疗、养老、体育、商业的全能型社区中心；既有兼容跑步、慢行，同时跨越交通、商业和公共绿地的高架东昌栈桥，也有深入观察桥下空间、公共厕所、公交场站、公园等公共设施的“每个人的城市”系列研究。从中，我们看到贯穿设计始终的建筑师对公共性的反思，正如武宁路桥下驿站的设计者，致正建筑工作室主持建筑师张斌在采访中所说的，“建筑师应该用空间回应人的公共生活，创造人与人连接的可能性，只有公共性能够代表建筑师的独立见解，建筑师始终要考虑能为社会、大众带来什么。”

何为公共设施之公共性？公共性应该是城市中一处充满包容和无差别化的空间，以及潜藏其中的一种不薄鄙俗与不捐微细的关怀，也蕴含着每一个人对美好生活的向往。就像2021年普利兹克建筑奖获得者安妮 拉卡顿和让-菲利普 瓦萨尔（Anne Lacaton &Jean Philippe Vassal）所致力的，以一种葆有社会关怀的专业态度于日常生活的庸常性中创造自由的诗意。

"Publicity" is a common topic.When cities become more and more complex and diverse,we need to explore the quality and potential of public space inward to truly achieve more sustainable development.Therefore,"publicity of public infrastructure" is particularly important.How to face the reality,find and expand unexpected possibilities with creative thinking is still worth our continuing discussion.

This issue specially selects community centers,service stations,infrastructure,which are new or renovated.When publicity becomes the common direction of these practices,we see different strategies in various situations.There are not only the bold attempts to transform the subway infrastructure and expand space for sports and leisure activities in the case of insufficient campus space,but also the public service improvement design of the riverbank landscape belt developed on the basis of meeting the basic functions of the drainage pump station.And there are not only public space system construction of composite archives and community cultural centers,but also all-round community centers that efficiently and intensively organize medical treatment,elderly care,sports and commerce with profile design.And there are also Dongchang Elevatede Passage which is compatible with running and walking,and a series of studies on "OPEN Metropolis" that deeply observe the space under the bridge,public toilets,bus stations,parks and other public facilities.We can see architects' reflection on publicity.As Zhang Bin,the chief architect in Atelier Z+said in the interview,"architects should respond to people's public life with space and create the possibility of connecting people.Only publicity can represent architects' independent views,and they should always consider what they can bring to society and the public."

What does the publicity of public infrastructure mean? Publicity should be a space full of tolerance and indifference in the city,as well as a kind of care that is not vulgar and subtle,but also contains everyone's longing for a better life.Just as Anne Lacaton &Jean Philippe Vassal,the winner of the Pritzker Architecture Award in 2021,is committed to creating free poetry in the mediocrity of daily life with a professional attitude of social care.