Integrating Human Mobility and Infrastructure Design in Digital Twin to Improve Equity and Resilience of Cities

The changing climate has amplified the intensities and scales of the environmental stresses with disproportional impacts on global cities. Building equity and resilience for cities to cope with disaster impacts it in an urgent need. Cities are composed of the built environment that shapes humans' mobility and capabilities to survive in disasters. Hence, integrating human mobility and infrastructure design may hold the key to building equity and resilience for our cities. However, a methodological framework is missing to analyze the interdependencies and interactions between human mobility and infrastructure systems to inform the design of equitable and resilient urban spaces. Here, we summarize our studies on characterizing complex urban environments, modeling human-infrastructure interactions, and proposing an optimal scenario that improves equity and resilience of population accessibility to infrastructures. Our work has broad implications for the integration of humans and infrastructure in digital space through smart city digital twins. We finally propose a design of the digital space to connect the societal challenges of equity and resilience with the technological innovations in the digital twin.