Minimum operating requirements link increased risk in the aftermath of a disruptive event with its potential consequences on the availability of tunnels to road users. With the objective of increasing a tunnel’s capacity during the recovery process and reducing time until return to baseline functionality, they can contribute to improving the resilience of road tunnels to both familiar and emerging threats. We introduce a risk-based approach for assessing the influence of damages on road tunnels and identifying suitable measures to minimize the adverse impact on traffic conditions. Minimum operating requirements, including temporary measures, under which a tunnel can still be operated are to be defined using qualitative and quantitative assessment methods. Their benefit lies in providing a basis for action for tunnel operators in the wake of disruptive events and harmonizing the recovery process with regard to both risk and availability. Key challenges include the alignment of underlying safety levels and the need for implementation by tunnel operators as well as adaptation with regards to their respective resources and restraints.