香港中文大学地理与资源管理系

闞子涵教授

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本系職員

闞子涵教授

Assistant Professor

BSc (WuhanU)
PhD (WuhanU)

(852) 3943-6527

zihankan@cuhk.edu.hk 浏览個人網頁 > 下载履歴 >

RESEARCH PROJECTS

2025-2027. Urban Intelligence and Analytics Young Scholar Project. 1+1+1 CUHK-CUHK(SZ)-GDST Joint Collaboration Fund1+1+1 CUHK-CUHK(SZ)-GDST Joint Collaboration Fund. PI.

2024-2026. Sensing “flow patterns of activities” in urban road networks. Young Scientists Fund. National Natural Science Foundation of China. PI.

2024-2025. GreenScan: Unveiling Urban Greenspace Exposure with Street View and LiDAR for Environmental Health Insights. Strategic Partnership Award for Research Collaboration. CUHK. PI.

2024-2026. Research on spatial clustering method of activity flow in urban road network. Guangdong Provincial Natural Science Foundation. PI.

2024-2027. Unraveling the complex interplay of objective and perceived greenspace accessibility, greenspace usage patterns, and mental health outcomes in high-density urban environment. Research Grant Council, General Research Fund. PI.

 

SELECTED PUBLICATIONS

  • Su, L., Kan, Z*. and Kwan, M.P., 2025. Exploring the factors behind the discrepancy between two-dimensional and three-dimensional indicators of greenspace exposure. Ecological Indicators, 175, p.113584.
  • Liu, D., Wei, J. and Kan, Z*., 2025. Integrated transit service status assessment using smart transit card big data under the x-minute city framework. Journal of Transport Geography, 125, p.104189.
  • Liu, D., Kan, Z., Wang, J., Kwan, M.P., Song, J. and Wei, J., 2025. Using spatially explicit high-granularity 3D geospatial data for quantifying public transport walking accessibility inequality and vulnerability in the x-minute city. Cities, 166, p.106245.
  • Wei, J., Kan, Z., Liu, Z., Wang, Z. and Chen, Y., 2025. Exploring spatio-temporal variations in nonlinear correlations between the built environment and metro-bike travel: evidence from Beijing. Transportmetrica B: Transport Dynamics, 13(1), p.2541282.
  • Guo, X., Fang, M., Tang, L., Kan, Z., Yang, X., Pei, T., Li, Q. and Li, C., 2025. An adaptive OD flow clustering method to identify heterogeneous urban mobility trends. Journal of Transport Geography, 123, p.104080.
  • Zhao, Z., Kan, Z., Kwan, M.P. and Tang, L., 2025. Identifying urban spatial clusters via flow dynamics: a coupled tensor-based method. International Journal of Digital Earth, 18(1), p.2525382.
  • Kan, Z*., Liu, D., Yang, X. and Lee, J., 2024. Measuring exposure and contribution of different types of activity travels to traffic congestion using GPS trajectory data. Journal of Transport Geography, 117, p.103896.
  • Wei, J., Kan, Z*., Kwan, M.P., Liu, D., Su, L. and Chen, Y., 2024. Uncovering travel communities among older and younger adults using smart card data. Applied Geography, 173, p.103453.
  • Shi, H., Zhao, Z., Tang, L., Kan, Z. and Du, Y., 2024. Advancing human mobility modeling: a novel path flow approach to mining traffic congestion dynamics. International Journal of Geographical Information Science, p.1-28.
  • Liu, D., Kan, Z. and Lee, J., 2024. The proposal of a 15-minute city composite index through integrating GPS trajectory data-inferred urban function attraction based on the Bayesian framework. Applied Geography, 173, p.103451.
  • Huang, J., Kwan, M.P., Kan, Z., Kieu, M., Lee, J., Schwanen, T. and Yamada, I., 2024. Inter-relationships among individual views of COVID-19 control measures across multi-cultural contexts. Social Science & Medicine, 358, p.117247.
  • Kan, Z., Kwan, M.P., Huang, J., Cai, J. and Liu, D., 2023. A Spatial Network-Based Assessment of Individual Exposure to COVID-19. Annals of the American Association of Geographers, p.1-11.
  • Ahmed, N., Lee, J., Liu, D., Kan, Z. and Wang, J., 2023. Identifying urban green space deserts by considering different walking distance thresholds for healthy and socially equitable city planning in the Global South. Urban Forestry & Urban Greening, 89, p.128123.
  • Kan, Z., Kwan, M.P., Cai, J., Liu, Y. and Liu, D., 2023. Nonstationary relationships among individuals’ concurrent exposures to noise, air pollution and greenspace: A mobility-based study using GPS and mobile sensing data. Health & Place, 83, p.103115.
  • Liu, D., Kwan, M.P., Kan, Z. and Liu, Y., 2023. Examining individual-level tri-exposure to greenspace and air/noise pollution using individual-level GPS-based real-time sensing data. Social Science & Medicine, p.116040.
  • Kan Z, Kwan M.P, Ng M K, Tieben H, 2022. The Impacts of Housing Characteristics and Built-Environment Features on Mental Health. International Journal of Environmental Research and Public Health, 19(9): 5143. https://doi.org/10.3390/ijerph19095143
  • Kan, Z., Kwan, M.P., Liu, D., Tang, L., Chen, Y. and Fang M., 2022. Assessing individual activity-related exposures to traffic congestion using GPS trajectory data. Journal of Transport Geography, 98, 103240. https://doi.org/10.1016/j.jtrangeo.2021.103240
  • Huang, J., Kwan, M.P., Cai, J., Song, W., Yu, C., Kan, Z. and Yim, S.H.L., 2022. Field Evaluation and Calibration of Low-Cost Air Pollution Sensors for Environmental Exposure Research. Sensors, 22(6), 2381. https://doi.org/10.3390/s22062381
  • Liu, D., Kwan, M.P., Huang, J., Kan, Z., Song Y. and Li, X., 2022. Analyzing income-based inequality in transit nodal accessibility. Travel Behaviour and Society. 27, 57-64. https://doi.org/10.1016/j.tbs.2021.11.005
  • Kan, Z., Kwan, M.P., Huang, J., Wong, M.S. and Liu, D., 2021. Comparing the space-time patterns of high-risk areas in different waves of COVID-19 in Hong Kong. Transaction in GIS. 00, 1– 20. https://doi.org/10.1111/tgis.12800
  • Kan, Z., Kwan, M.P. and Tang, L., 2021. Ripley’s K-function for network-constrained flow data. Geographical Analysis. 0, 1–20. https://doi.org/10.1111/gean.12300
  • Kan, Z., Kwan, M.P., Wong, M.S., Huang, J. and Liu, D., 2021. Identifying the space-time patterns of COVID-19 risk and their associations with different built environment features in Hong Kong. Science of the Total Environment, 772, 145379. https://doi.org/10.1016/j.scitotenv.2021.145379
  • Huang, J., Kwan, M.P. and Kan, Z., 2021. The superspreading places of COVID-19 and the associated built-environment and socio-demographic features: A study using a spatial network framework and individual-level activity data. Health & Place, 102694. https://doi.org/10.1016/j.healthplace.2021.102694
  • Liu, D., Kwan, M.P., Kan, Z., 2021. Analyzing disparities in transit-based healthcare accessibility in the Chicago Metropolitan Area. Canadian Geographer/Le Géographe canadien. 1-15. https://doi.org/10.1111/cag.12708
  • Ren, C., Tang, L., Long, J., Kan, Z. and Yang, X., 2021. Modelling place visit probability sequences during trajectory data gaps based on movement history. ISPRS International Journal of Geo-Information, 10(7), 456. https://doi.org/10.3390/ijgi10070456
  • Liu, D., Kwan, M.P., Kan, Z. and Song, Y., 2021. An integrated analysis of housing and transit affordability in the Chicago Metropolitan Area. The Geographical Journal, 187, 110–126. https://doi.org/10.1111/geoj.12377
  • Liu, D., Kwan, M.P. and Kan, Z., 2021. Analysis of urban green space accessibility and distribution inequity in the City of Chicago.Urban Forestry & Urban Greening, 59,127029. https://doi.org/10.1016/j.ufug.2021.127029
  • Kwok, C.Y.T., Wong, M.S., Chan, K.L., Kwan, M.P., Nichol, J.E., Liu, C.H., Wong, J.Y.H., Wai, A.K.C., Chan, L.W.C., Xu, Y., Li, H., Huang, J. and Kan, Z., 2021. Spatial analysis of the impact of urban geometry and socio-demographic characteristics on COVID-19, a study in Hong Kong. Science of the Total Environment, 764, 144455. https://doi.org/10.1016/j.scitotenv.2020.144455
  • Kan, Z., Wong, M. S., Zhu, R., 2020. Understanding space-time patterns of vehicular emission flows in urban areas using geospatial technique. Computers, Environment and Urban Systems, 79, 101399. https://doi.org/10.1016/j.compenvurbsys.2019.101399
  • Chen, Y., Tang, L., Kan, Z., Bilal, M. and Li, Q., 2020. A novel water body extraction neural network (WBE-NN) for optical high-resolution multispectral imagery. Journal of Hydrology, 588, 125092. https://doi.org/10.1016/j.jhydrol.2020.125092
  • Chen, Y., Tang, L., Kan, Z., Latif, A., Yang, X., Bilal, M. and Li, Q., 2020. Cloud and cloud shadow detection based on multiscale 3D-CNN for high resolution multispectral imagery. IEEE Access, 8, 16505-16516. https://doi.org/10.1109/ACCESS.2020.2967590
  • Huang, J., Kwan, M. P., Kan, Z. et al. 2020. Investigating the relationship between the built environment and relative risk of COVID-19 in Hong Kong. ISPRS International Journal of Geo-Information, 9(11): 624. https://doi.org/10.3390/ijgi9110624
  • Kan, Z., Tang, L., Kwan, M.P., Ren, C., Liu, D. and Li, Q., 2019. Traffic congestion analysis at the turn level using taxis’ GPS trajectory data. Computers, Environment and Urban Systems, 74, 229-243. https://doi.org/10.1016/j.compenvurbsys.2018.11.007
  • Tang, L., Gao, J., Ren, C., Zhang, X., Yang, X. and Kan, Z., 2019. Detecting and evaluating urban clusters with spatiotemporal big data. Sensors, 19(3), p.461. https://doi.org/10.3390/s19030461
  • Kan, Z., Tang, L., Kwan, M. P. and Zhang, X., 2018. Estimating vehicle fuel consumption and emissions using GPS big data. International Journal of Environmental Research and Public Health, 15(4), 566. https://doi.org/10.3390/ijerph15040566
  • Kan, Z., Tang, L., Kwan, M.P., Ren, C., Liu, D., Pei, T., Liu, Y., Deng, M. and Li, Q., 2018. Fine-grained analysis on fuel-consumption and emission from vehicles trace. Journal of cleaner production, 203, 340-352. https://doi.org/10.1016/j.jclepro.2018.08.222

Teaching Fields

  • Spatial statistics and analytics
  • Big data analytics
  • Smart and sustainable cities
  • Geographic Information Science

Research interests

  • Geographic Information Science (GIS)
  • Environmental Health
  • Spatiotemporal Analysis
  • Transportation Geography
  • Travel Behavior

Services/ Posts

Guest Editor, Sustainability.

Awards

2021. Advancing Diversity and Inclusion Award, Energy and Environment Specialty Group of the American Association of Geographers.
2019. University Scientific Research Outstanding Achievement Award (Science and Technology) (team). Ministry of Education (China).
2019. Graduate Academic Innovation Award, Wuhan University
2017. First Prize in Progress in Surveying and Mapping Technology (team). Chinese Society for Geodesy Photogrammetry and Cartography.
2017. National Scholarship, Ministry of Education (China)
2017. Joint Ph.D. Student Program Scholarship, China Scholarship Council

SUGGESTED RESEARCH TOPICS FOR POSTGRADUATE STUDENTS

GIScience and space-time analysis

Human mobility and spatial flow modeling

Environmental exposure and human activity

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