ETRA is a Centre of Excellence for Smart City and Smart Mobility Solutions within ACS corporation that provides technology for different transport modes and operates networks in cooperation with customers. ETRA develops and integrates tools and techniques for enhancing the resilience of critical infrastructures like transportation and energy. Some use cases of interest include tunnel safety, urban traffic management with extreme weather, management of public transport with extreme weather, and intermodality to mitigate effects of disruptive events.