Infrastructure systems play a crucial role in ensuring the safety of cities and the well‐being of residents after earthquakes. Meanwhile, infrastructure systems are vulnerable to earthquakes and may fail to provide necessary services, highlighting the significant need to improve seismic emergency performance. Nevertheless, the seismic emergency performance of infrastructure systems still lacks effective enhancement strategies and optimization models, which makes it challenging to devise and benchmark appropriate emergency enhancement actions. This study proposes an emergency performance optimization model for infrastructure systems against earthquakes. The model aims at maximizing the effects of resistance actions and short‐term recovery actions on infrastructure systems with consideration of residents' expectations of infrastructure performance after earthquakes. The efficacy of the proposed model is tested by a case study in China. Experiments and results illustrate advantages of the seismic emergency performance optimization and prioritize resistance and short‐term recovery activities within constraints set by available resources.
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