What does this sign indicate?

• A. A warning about a pedestrian crossing.
• B. A speed zone is ahead; please be prepared to reduce your speed to 55 mph.
• C. A no passing zone.
• D. A school zone ahead.

Answer: (B)

This sign is about changing how fast you can travel ahead. It warns that you’re about to enter a speed zone where the limit will be 55 mph, so you should slow down to that speed before you reach the zone. Recognizing warning signs like this helps you adjust your speed gradually and stay within the new limit as you continue driving.

It’s not a pedestrian crossing sign, which would show people walking. It’s not a no-passing sign, which would use different wording or symbols indicating you can’t pass. And it’s not a school zone sign, which usually shows a school-related symbol and often a different emphasis on speed near schools.