What does a red traffic light mean?

A red traffic light signals drivers to come to a complete stop and remain stationary until the light turns green. It is a crucial traffic control device designed to manage vehicle flow at intersections and ensure the safety of all road users, including pedestrians. Ignoring a red light can lead to accidents and violations of traffic laws, which is why it is essential for drivers to understand that a red light means they must not proceed. This rule helps maintain order on the road and prevents collisions at points where vehicles could potentially cross paths.

Options such as yielding to traffic or proceeding with caution do not accurately describe the directive of a red traffic light, as they imply different actions that could result in dangerous situations. Similarly, ending a no parking zone is unrelated to the function of traffic lights and does not apply in this context.