Researchers will use simulation to evaluate how effectively a proposed Connected and Automated Vehicle (CAV) preemption system could support Emergency Medical Services (EMS) response on the El Paso highway network. An agent-based simulation model will analyze EMS vehicle travel times from ambulance stations to selected highway incident locations. The study will focus on how travel times vary under different operating conditions, including broadcast range, CAV market penetration, non-CAV compliance rate, and traffic volume. Mobility efficiency is defined as the percentage reduction in average travel time.