Keunhyun Park is a doctoral student in the Department of City & Metropolitan Planning and research assistant at the Metropolitan Research Center. He completed his bachelor and master degrees in Landscape Architecture at Seoul National University. During that time, he tried to understand the social, economic, and environmental outcomes of public space development. To expand knowledge of urban policies related to public space and contribute to professional research, he joined the Korea Research Institute for Human Settlements (KRIHS) and participated in diverse research projects of urban planning and design from 2010 to 2014. Keunhyun believes that while urban design theories such as new urbanism (NU) and transit-oriented development (TOD) emphasize public spaces, they do not fully consider various forms and user types. Thus he expects that through his doctoral research, he will gain a better understanding of how public space is related to both spatial justice and sustainable development.