Resilient infrastructure refers to the ability of physical and social systems to withstand and recover from disruptions such as natural disasters, pandemics, or terrorist attacks. This research area focuses on developing strategies and technologies to enhance the resilience of critical infrastructure such as transportation networks, energy grids, and communication systems. It often involves a multi-disciplinary approach that integrates engineering, economics, social sciences, and public policy to mitigate risks and improve the ability of communities to bounce back from disasters. Key research topics in resilient infrastructure include risk assessment, resilience modeling, infrastructure planning and design, and resilience management strategies. Ultimately, the goal of this research area is to create more sustainable and resilient communities that can better adapt to and recover from unexpected disruptions.