This project aims to fill the existing gap in the state-of-the-art and the state-of-practice and derive a set of mathematical relationships that will allow estimating a wide range of driving ability performance indicators based on both roadway and driver-related characteristics. A pilot study will be conducted using the driving simulator available at the University Transportation Center for Accessibility and Safety for an Aging Population (ASAP) to assess how efficiently individuals of different age groups are able to drive along the evacuation routes under disruptive operational conditions. The data, collected from a pilot study, will be thoroughly analyzed to identify any patterns, develop the required mathematical relationships, and provide necessary recommendations, which can be further incorporated in transportation planning models to facilitate the evacuation process especially in the areas with vulnerable population groups.