Road Narrows Sign
The road narrows ahead from both sides
What to do
Slow down and stay centered in your lane.
Tips
Reduce speed, especially in larger vehicles.
Test yourself
You see this sign while driving. What do you have to do?
Show the answer
Slow down and stay centered in your lane.
Common mistake
Not reducing speed on narrow roads
About warning signs
Warning signs are diamond-shaped and yellow with black symbols. They alert you to hazards ahead — curves, intersections, crossings — so you have time to slow down. On the DMV written test, expect several questions asking what a specific warning sign means and what action it calls for.
Practice questions about this sign
This yellow diamond warning sign means:
- A. A passing lane begins ahead
- B. A toll booth is ahead
- C. The speed limit increases ahead
- D. The road ahead becomes narrower on both sides
Show answer
D. The road ahead becomes narrower on both sides — A road-narrows sign warns that the paved width decreases ahead, so drivers should slow down and stay centered in their lane.
Universal rule · checked against MUTCD 11th Edition, Part 2 — Signs (General) — Traffic Signs — General · verified 2026-08-01
Frequently asked questions
What does the Road Narrows Sign mean?
The road narrows ahead from both sides
What should you do at a Road Narrows Sign?
Slow down and stay centered in your lane.
Reference standard: Federal Highway Administration Manual on Uniform Traffic Control Devices ↗. State and local agencies may add rules or operating times, so follow the complete posted sign where you drive. How DMV Prep sources content.
More warning signs
