Physics based simulations of multiple hazards for risk sensitive land use planning

Rapid urban expansion in many parts of the world is increasing exposure to natural hazards, which are often exacerbated by climate change. We present the results of physics-based simulations for various flooding, earthquake, and debris-flow scenarios located in a region considered for future urban expansion. The effect of climate change, in terms of increasing rainfall intensity, is incorporated into some of the hazard scenarios. We show that a future urban area can be affected by: (1) multiple hazards at different locations; (2) multiple hazards at a particular location. We demonstrate that this information can be used to shape decision making around future social and built environment developments towards risk-informed future urban planning. In summary, this research demonstrates the importance of considering multiple hazards when designing disaster-resilient urban landscapes of tomorrow.