What does a red traffic signal mean?

A red traffic signal indicates that drivers must come to a complete stop and wait for the light to change before proceeding. This signal is a crucial aspect of maintaining traffic flow and ensuring safety at intersections. When the light is red, it signifies that vehicles traveling in the opposite direction are given the right of way, preventing potential collisions. It is essential for all road users to adhere to this rule to ensure everyone can navigate safely through intersections. The other options suggest actions that could lead to confusion or danger on the road.