What does a red arrow mean?

A red arrow indicates that drivers must come to a complete stop and cannot proceed in the direction the arrow is pointing. This signal is used to manage traffic and ensure safety at intersections. When you see a red arrow, it is essential to stop before the stop line or intersection, even if there are no other vehicles around. After stopping, a driver may only proceed once it is safe and legal to do so, often when there is a green light or another indication that allows movement.

The other options refer to different traffic guidelines. For instance, "slow down" and "proceed with caution" indicate actions for different yellow signals or circumstances rather than a clear stop directive. "Yield" is used to give right of way to other vehicles or pedestrians but does not require a complete stop in all situations, which further distinguishes the red arrow's adamant instruction for complete halting.