What does an orange-colored sign indicate?
- The start of a no passing zone.
- A railroad crossing is ahead.
- A school zone is ahead.
- The presence of construction work. ✓
Answer: D. The presence of construction work.
An orange-colored sign means construction or maintenance work is present or being warned about.
Why this is the answer
The handbook's traffic sign color list assigns orange to construction and maintenance warning. It also says construction and maintenance signs are usually diamond shaped and/or orange, and they alert drivers to unusual or potentially dangerous conditions near work areas. Drivers should be ready to slow down and use caution when a sign, flagger, or officer directs them. That makes construction work the meaning of an orange sign.
Why the other answers are wrong
- A. The start of a no passing zone. — Orange is assigned to construction and maintenance warning, not to marking the start of a no passing zone.
- B. A railroad crossing is ahead. — The handbook pairs orange with work zones, not with warning that a railroad crossing is ahead.
- C. A school zone is ahead. — Orange is used for construction and maintenance warning, not for indicating that a school zone is ahead.
Remember it
Link orange to the work zone: if the sign is orange, expect construction or maintenance activity.