I am a Postdoctoral Fellow,cooperative researcher of UPMA, in the Faculty of Architecture at the University of Hong Kong. My research focuses on natural experiments of built environment and its impacts on health outcomes. My current NSFC project is a natural experiment of urban rail infrastructure and active travel in Nanchang, China. I am also working on the construction of Hong Kong Urban GIS platform, which is the spatial infrastructure of HKUrbanLab to support studies of the high-density city. I received my Ph.D. in Geoinformation Science from The Chinese University of Hong Kong (2014).