Phoenix Heat Map

ICARUS: Urban Activity Heat Simulation

Modeling and simulation
Smart and resilient infrastructure

National Science Foundation


ICARUS is a simulation developed by Arizona State University and the University of California Los Angeles to estimate the effects of environmental hazards on persons indoors and outdoors and evaluate the efficacy of mitigation strategies.

ICARUS was developed by a team of engineers, environmental scientists, and public health scientists. It combines a state-of-the-art agent-based travel simulation (MatSIM), an indoor exposure model, environmental hazard models, and infrastructure data to estimate the effects of environmental disturbances in cities. The simulation is able to evaluate neighborhood to city-scale effects including assessing heat exposure mitigation, travel behavior changes due to roadway disruptions, and the effects of infrastructure changes on personal comfort during travel.


Hoehne, C.G., Hondula, D.M., Chester, M.V., Eisenman, D.P., Middel, A., Fraser, A.M., Watkins, L. and Gerster, K., 2018. Heat exposure during outdoor activities in the US varies significantly by city, demography, and activity. Health & place, 54, pp.1-10.

For more information and project updates, please check Resilient Infrastructure.

ASU Leads

Mikhail Chester

Assistant Professor, Civil, Environmental, and Sustainable Engineering

Ariane Middel

Assistant Professor, Herberger Institute for Design and the Arts School of Arts, Media and Engineering

David Hondula

Assistant Professor, School of Geographical Sciences and Urban Planning