Emergency vehicles like fire trucks and ambulances face a unique challenge when navigating through signalized intersections. While traffic signals are designed to maintain order and safety on the roads, they can pose a significant hazard to emergency response vehicles, especially when rapid movement is crucial. The standard yellow light duration is typically calibrated for passenger vehicles, often falling up to 1.5 seconds short of what is ideal for larger emergency vehicles. This discrepancy increases the risk of accidents, particularly if surrounding drivers are not fully alert.

Emergency Vehicle Preemption (EVP) systems are a game-changing solution designed to address this risk. These systems allow emergency vehicles to communicate with traffic signals, prompting the light to change in their favor as they approach. By automatically adjusting the signal cycle to provide a green light, EVP systems help emergency responders navigate intersections more safely and efficiently.