How does a driver indicate awareness of approaching emergency vehicles?

A driver indicates awareness of approaching emergency vehicles primarily by changing lanes when it is safe to do so. This action allows for a safe passage and creates space for the emergency vehicle to maneuver, ensuring that they can reach their destination quickly and without obstacles.

When an emergency vehicle is responding to a call, it often needs to navigate through traffic, and by moving to an adjacent lane, drivers help facilitate this process. This is particularly crucial in scenarios where the emergency vehicle is using lights and sirens, as it indicates an urgent situation requiring immediate attention.

The choices focus on other behaviors that do not effectively contribute to the safe passage of emergency vehicles. Simply increasing speed would not provide any assistance and could create hazards. Using turn signals is important for communication with other drivers but does not specifically address the need to yield to emergency vehicles. Sounding the horn, while sometimes used to alert other drivers, is not an appropriate means of showing awareness in this context and could lead to confusion or panic.