What does a red traffic light mean?

A red traffic light indicates that you must stop completely at the designated stop line, intersection, or crosswalk. This signals to drivers that they must halt their vehicle in order to ensure the safety of all road users, including pedestrians and other vehicles. The intent behind this signal is to control the flow of traffic and prevent accidents, particularly at intersections where the potential for collisions is higher.

While it is important to be aware of pedestrians and yield appropriately when the light changes or when stopping, the primary meaning of a red light is an absolute requirement to stop. This rule is foundational in traffic laws to maintain order and safety on the roads. Proceeding with caution or preparing to turn right may apply in different contexts, such as when the signal changes or other signs indicate that a turn is allowed, but these situations do not override the immediate requirement to stop for a red light.