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(2025) University of Southern California µµ½Ã°èȹ ¹× °³¹ßÇÐ ¹Ú»ç
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(2023) ¹Ì±¹ Pacific Northwest National Laboratory ¹Ú»ç°úÁ¤ ÀÎÅÏ
(2023) ¹Ì±¹ µµ½Ã°èȹ°¡ (American Institute of Certified Planners) ÀÚ°Ý Ãëµæ
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(2025) Three Essays on Virtual Accessibility and Online Food Delivery Platform, University of Southern California
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SSCI±Þ ¿¬±¸½ÇÀû(2020³â ÀÌÈÄ)
Ha, J. (2026). Physical and virtual space: A critical review of accessibility concepts and measurements. Transport Reviews, 46(4), 700–724.
Hong, A., Ha, J., Ki, D., & Choi, D. A. (2026). Designing age-friendly streetscapes: Assessing environmental risk factors for falls using street view images. Cities, 170, 106696.
Ki, D., Lee, H., Park, K., Ha, J., & Lee, S. (2025). Measuring nuanced walkability: Leveraging ChatGPT with multisource data. Computers, Environment and Urban Systems, 121, 102319.
Ha, J. (2025). Online delivery platforms: Disparities in food access in U.S. metro areas. Transportation Research Part D: Transport and Environment, 145, 104749.
Ha, J. (2025). From online deliveries to travel behavior: Socioeconomic insights from 2009, 2017, and 2022. Transport Policy, 168, 15–26.
Boeing, G., & Ha, J. (2024). Resilient by design: Simulating street network disruptions across every urban area in the world. Transportation Research Part A: Policy and Practice, 182, 104016.
Ha, J., Lee, S., Kim, J. H., & Hipp, J. R. (2024). Do employment centers matter? Consequences for commuting distance in the Los Angeles region, 2002–2019. Cities, 145, 104669.
Li, X., Ha, J., & Lee, S. (2024). Unveiling the roles of public bike systems: From leisure to multimodal transportation. Travel Behaviour and Society, 34, 100705.
Ha, J., Ki, D., Lee, S., & Ko, J. (2023). Mode choice and the first-/last-mile burden: The moderating effect of street-level walkability. Transportation Research Part D: Transport and Environment, 116, 103646.
Ha, J., & Lee, S. (2022). Do the determinants of COVID-19 transmission differ by epidemic wave? Evidence from U.S. counties. Cities, 131, 103892.
Liu, J., Gross, J., & Ha, J. (2021). Is travel behavior an equity issue? Using GPS location data to assess the effects of income and supermarket availability on travel reduction during the COVID-19 pandemic. International Journal of Urban Sciences, 25(3), 366–385.
Ha, J., Lee, S., & Kwon, S. (2021). Revisiting the relationship between urban form and excess commuting in U.S. metropolitan areas. Journal of Planning Education and Research, 41(3), 294–311.
Costa, C., Ha, J., & Lee, S. (2021). Spatial disparity of income-weighted accessibility in Brazilian cities: Application of Google Maps API. Journal of Transport Geography, 90, 102905.
Ha, J., Lee, S., & Ko, J. (2020). Unraveling the impact of travel time, cost, and transit burdens on commute mode choice for different income and age groups. Transportation Research Part A: Policy and Practice, 141, 147–166.
Ha, J., Choi, Y., Lee, S., & Oh, K. (2020). Diurnal and seasonal variations in the effect of urban environmental factors on air temperature: A consecutive regression analysis approach. International Journal of Environmental Research and Public Health, 17(2), Article 421.