I am a Research Assistant Professor of Faculty of Architecture at the University of Hong Kong. My research focuses on natural experiment of built environment and its impacts on social outcomes and health-related behaviors (e.g., walking, cycling, active travel, physical activity, and mental health). My current NSFC project is a natural experimental study of urban rail transit and sustainable travel in medium-sized Chinese cities. I am also working on construction of Hong Kong Urban GIS platform and Hong Kong Urban Morphometric Platform, which provide detailed built environment measures and spatial computing capabilities for urban health studies. I led construction of 3D pedestrian network of Hong Kong, a spatial infrastructure of HKUrbanLab, which is in line with my focus on pedestrian mobility and urban form simulation. I received my Ph.D. in Geoinformation Science from The Chinese University of Hong Kong (2014). After doctoral training I have three-years research experiences as post-doctoral fellow and research associate.
G. Sun, C. Webster, A. Chiaradia. Un-gating the cities: A permeability perspective. Urban Studies, 1-17, 2017, DOI: 10.1177/0042098017733943
G. Sun, J. Zacharias. Can bicycle relieve overcrowded metro? Managing short-distance travel in Beijing. Sustainable Cities and Society, 35: 323–330, 2017
G. Sun, C. Webster, A. Chiaradia. Objective assessment of station approach routes: development and reliability of an audit for walking environments around metro stations in China. Journal of Transport & Health, (4):191–207, 2017
G. Sun, J. Zacharias and B. Ma, N. Oreskovic. How do metro stations integrate with walking environments? Results from walking access within three types of built environment in Beijing. Cities, 56: 91-98, 2016.
G. Sun, R. Haining, H. Lin, N. Oreskovic, J. He. Comparing the perception with the reality of walking in a hilly environment: an accessibility method applied to a university campus in Hong Kong. Geospatial Health, 10(340), 32-39, 2015.
G. Sun, R.A. Acheampong, H. Lin, V.C. Pun. Understanding Walking Behavior among University Students Using Theory of Planned Behavior. International Journal of Environmental Research and Public Health, 12(11):13794-13806, 2015.
G. Sun, N. Oreskovic, H. Lin. How do changes to the built environment influence walking behaviors? a longitudinal study within a university campus in Hong Kong. International Journal of Health Geographics, 13(1), 28, 2014 (BioMed Central Highly Accessed Paper)
C. Webster, J. Ruan, G. Sun. Private gains and social costs of China’s gated communities. In Yasushi Watanabe (Eds). Handbook of Cultural Security. Edward Elgar, 2017.
H. Lin, G. Sun, R. Li. The influence of built environment on walking behavior: measurement issues, theoretical considerations, modeling methodologies and Chinese empirical studies. In Kwan, M.-P., Richardson, D., Wang, D., Zhou, C. (Eds.) Space-Time Integration in Geography and GIScience: Research Frontiers in the U.S. and China. Dordrecht: Springer, 2014.
G. Sun, H. Lin, R. Li. Measuring the influence of built environment on walking behavior: an accessibility approach. In N. Xiao, M.-P. Kwan, M. Goodchild, & S. Shekhar (Eds.), Geographic Information Science (Vol. 7478, pp. 187-197, Lecture Notes in Computer Science): Springer Heidelberg, 2012.
H. Lin, G. Sun. Review of walking studies in urban China. In Annual Report of Development of Chinese Cities, China City Press, 2012.
G. Sun, C. Webster, M. Ni, X. Zhang. Measuring high density built environment for public health research: Uncertainty in data, indicator design and spatial scale.
G. Sun, J. Zacharias, Y. Huang, C. Webster. The impact of urban rail transit on travels in medium-sized cities of China.
Principal Investigator: ‘Natural experiment’ in urban rail infrastructure and active travel: a longitudinal study in medium-size city in China. (NSFC41561035, 2016.01-2019.12)
Principal Investigator: Walkable environment design and land use policy and practice of the extension of metro line 4 in Guangzhou, China. (Nansha urban planning center fund, 2014.12-2015.12)
Co- Investigator: Pedestrian accessibility modelling for high-dense built environment around urban rail transit station. (NSFC51478300, 2015.01-2018.12)
Co- Investigator: Built environment correlates of children’ physical activity and active space in Beijing. (NSSFC16BTY071, 2016.07-2018.07)
Co- Investigator: ‘Natural experiment’ of a campus: a longitudinal study of walking behaviors of university students in Hong Kong. (Direct Grant, 2012.01-2014.01)