USAREUR Practice Exam

When must a vehicle wait according to traffic control signals?

1. When it is on a connecting road.

2. At all times in the presence of police signals.

3. When another vehicle has the right-of-way.

4. When the traffic lights are green.

The correct answer is: When another vehicle has the right-of-way.

A vehicle must wait when another vehicle has the right-of-way because this situation aligns with the fundamental rules of traffic management. The right-of-way is a critical concept in road safety, indicating which vehicle or pedestrian is allowed to go first, thus preventing confusion and potential accidents at intersections and crossings. The principle of yielding to the vehicle that has the right-of-way is essential for the orderly flow of traffic and helps ensure that all users of the road can navigate safely. This applies to various scenarios, such as when merging into a lane, at stop signs, and during traffic light changes when other vehicles have been signaled to proceed. In contrast, vehicles do not wait simply because they are on a connecting road or at the presence of police signals, as these situations can vary based on specific circumstances and commands from law enforcement. Additionally, a green traffic light signals vehicles to proceed rather than stop, which would not be a situation where a vehicle must wait. Therefore, yielding when another vehicle has the right-of-way is a direct application of traffic laws designed to maintain safety and order on the roads.