North Carolina DMV Permit Test: Guide Signs and Route Markers Concepts
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Overview
Guide signs help you find your way. They show routes, directions, distances, and services such as a hospital. This chapter covers their colors and the shapes North Carolina uses to mark Interstate, U.S., and state routes.
Guide signs are rectangles and may be green, brown, or blue. Green signs give directions and distances, blue and white signs point to services such as a hospital or a Highway Patrol station, and brown signs lead to parks and recreation areas. If you are lost, do not stop in the road to read a sign. Pull onto the shoulder when it is safe.
Interstate highways are marked with a red, white, and blue shield, and U.S. highways with a shield. North Carolina routes use a diamond-shaped marker, and secondary roads use a rectangle. As a general rule, a highway with an odd number runs north–south, and one with an even number runs east–west.
Key concepts
Green guide signs
Rectangular green signs that give directions, route numbers, and distances to places.
Memory tipGreen: where to go and how far.
Blue service signs
Blue and white signs that point to services such as a hospital, a Highway Patrol station, or a telephone.
Memory tipBlue: help and services.
Brown signs
Brown guide signs lead to parks, recreation areas, and places of cultural interest.
Memory tipBrown: parks and places to visit.
Route markers
Interstate routes use a red, white, and blue shield. U.S. routes use a shield. North Carolina routes use a diamond, and North Carolina secondary roads use a rectangle.
Memory tipDiamond route marker: a North Carolina highway.
Source: North Carolina Driver's Handbook (NCDMV), Chapter 5 · as of 2026
Route numbers
As a general rule, odd route numbers mean a north–south road and even route numbers mean an east–west road.
Memory tipOdd goes up and down the map; even goes across.
Often tested
- Green signs give directions and distances.
- Blue and white signs show services such as a hospital.
- Brown signs lead to parks and recreation areas.
- A diamond route marker means a North Carolina route.
- Even-numbered routes generally run east and west.
Easy to confuse: Route marker shapes
| Road | Marker shape |
|---|---|
| Interstate highway | Red, white, and blue shield |
| U.S. highway | Shield |
| North Carolina route | Diamond |
| North Carolina secondary road | Rectangle |
3 sample questions
Verified practice questions from this unit.
Question 1. What shape is the route marker for a North Carolina state highway?
- ① Shield
- ② Diamond
- ③ Triangle
- ④ Circle
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Answer: ② Diamond
Key point: North Carolina route markers are diamonds
North Carolina route markers are diamond-shaped. U.S. highways use a shield, and Interstates use a red, white, and blue shield.
Wrong choices
- Shield: The shield is used for U.S. highways and, in red, white, and blue, for Interstates.
- Circle: A circle is not the North Carolina route marker.
- Triangle: The triangle with its point down is the YIELD sign.
Question 2. What do blue and white signs along the highway show?
- ① Services such as a hospital or a Highway Patrol station
- ② Construction work ahead
- ③ Railroad crossings
- ④ Speed limits
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Answer: ① Services such as a hospital or a Highway Patrol station
Key point: Blue and white signs: services
Blue and white signs point to services, such as a hospital, a Highway Patrol station, or a telephone.
Wrong choices
- Construction work ahead: Construction work is shown on orange signs.
- Speed limits: Speed limits are shown on white rule signs.
- Railroad crossings: Railroad crossings are shown on yellow round signs and white crossbucks.
Question 3. Which route marker is a red, white, and blue shield?
- ① North Carolina secondary road
- ② U.S. highway
- ③ County road
- ④ Interstate highway
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Answer: ④ Interstate highway
Key point: Red, white, and blue shield: Interstate
Interstate highways are marked by a red, white, and blue shield. U.S. highways use a plain shield, and North Carolina routes use a diamond.
Wrong choices
- U.S. highway: U.S. highways use a shield, but not the red, white, and blue Interstate shield.
- North Carolina secondary road: North Carolina secondary road signs are rectangles.
- County road: This shield is reserved for the Interstate system.
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