Songhua HU, 胡松華

Mobility: Mobile phones, connected vehicles, and wearable sensors generate huge amounts of data on how people move. My work uses this data to estimate travel demand, forecast future flows with AI, and run fine-grained citywide traffic simulations. Sustainability: Transport remains a major source of greenhouse gases and air pollution. My work develops low-cost methods to monitor and predict emissions at scale, advances vehicle electrification, and evaluates urban policies such as speed limits and demand management. Resilience: Disasters, pandemics, and extreme weather profoundly disrupt how people travel. My work measures travel patterns before, during, and after such events, with a particular focus on which underserved communities recover the slowest. Health: The COVID-19 pandemic showed how tightly human mobility is coupled to disease dynamics. My work combines econometric, epidemiological, and simulation models to disentangle the causal links among mobility, vaccination, public policy, and infection outcomes. Keywords: TA Engineering (General). Civil engineering (General); Transportation Engineering; Human Mobility; HE Transportation and Communications; Transport Policy; Transportation Planning; QA75 Electronic computers. Computer science; Transportation Big Data; AI for Science; Urban Computing; Network Science; GF Human ecology. Anthropogeography; Transport Geography; GeoAI; Spatiotemporal AI; TD Environmental technology. Sanitary engineering; Traffic Emission; Sustainable Transportation; Transportation Energy; RA0421 Public health. Hygiene. Preventive Medicine; Spatial Epidemiology; Transport & Health; Human Exposure

Ubiquitous data-driven framework for traffic emission estimation and policy evaluation. Hu, S., Santi, P., Benson, T., Zhou, X., Wang, A., Kumar, A. & Ratti, C., 2 Apr 2026, (Online published) Nature Sustainability. 16 p. RGC 21 - Publication in refereed journal peer-review A survey of multi-modal urban transportation network resilience: modeling, evaluation, and optimization. Chen, B., Hu, S., Xu, X., Wang, G., Lee, D.-H. & He, Z., Mar 2026, Transportation Research Part E: Logistics and Transportation Review. 207, 23 p., 104634. RGC 21 - Publication in refereed journal peer-review Crowdsourced reviews reveal substantial disparities in public perceptions of parking. Li, L. (Co-first Author), Hu, S. (Co-first Author), Dinh, L. & Hemphill, L., Apr 2026, Cities. 171, 16 p., 106866. RGC 21 - P