Infrastructure maintenance involves the ongoing upkeep and repair of physical structures, such as roads, bridges, buildings, and utilities, to ensure their safe and efficient operation. This research area focuses on developing and implementing strategies for monitoring, inspecting, and maintaining infrastructure to prevent deterioration and extend its lifespan. Researchers in this field may explore innovative technologies and techniques for maintenance, assess the impact of maintenance practices on infrastructure performance, and analyze cost-effective maintenance strategies. The goal of infrastructure maintenance research is to improve the reliability and resilience of critical infrastructure systems to support economic development and enhance public safety.