Tunnels on the primary road network are complex systems. Safe and unrestricted traffic is guaranteed only if the various tunnel components (structural elements and electro-mechanical (E&M) equipment) interact seamlessly with each other. Due to their heterogeneous nature, E&M and structural components are subject to various aging processes which require recurring maintenance procedures and rehabilitation measures. Considering the different specifications and requirements for E&M and structural components, it is evident that there is a considerable mismatch of maintenance cycles between these groups. Hence, tunnel asset management faces the challenge to develop strategies to integrate both the necessary functional integrity of the individual components over their respective lifecycle and the requirement of an optimized management for the overall system. Yet, the synchronization of measures towards maximizing system availability must not contradict positive wear-and-tear contingencies of the various tunnel components.