Tim Welch specialises transportation, infrastructure and urban modelling with a focus on the use of big data and technology. Much of Dr. Welch’s research is applied with a focus on equity and climate change. His past work has included analyses of public transportation performance and connectivity; evaluating the efficacy of policies aimed at mitigating climate change; developing models to measure housing value and other fiscal impacts of transportation infrastructure investments; and investigating the travel behaviour influences of the built environment.