When two apparatus equipped with preemptive devices approach the same intersection, what is the expected outcome?

When two apparatus equipped with preemptive devices approach the same intersection, the expected outcome is that one apparatus receives a green light. Preemptive devices are designed to enhance the safety and efficiency of emergency vehicles at intersections, allowing them to navigate traffic more effectively during responses to emergencies.

When they are activated, these devices communicate with the traffic control system to prioritize the emergency vehicles, typically resulting in one vehicle receiving a green light while the other may need to stop or wait. This helps prevent accidents and ensures that the responding units can reach their destination quickly. Thus, the operation of the preemptive system is specifically designed to provide clear priority to one apparatus in such situations, rather than allowing both to proceed simultaneously or requiring both to stop.