ND Guide and Information Signs
You are driving on an interstate in North Dakota and see a large green sign overhead listing the next exit and a destination city. What kind of sign is this?
- A regulatory sign you must obey
- A guide sign giving directional information ✓
- A warning sign about a hazard ahead
- A construction zone sign
The answer explained
Green guide signs help you plan lane changes and exits well in advance of the gore point where the exit ramp begins. On limited access highways in North Dakota the standard sequence is a one mile advance sign, a half mile sign, and the exit direction sign at the gore. Use the advance distance to get into the rightmost through lane and check mirrors before the deceleration lane begins.
Why this rule exists
Lane changes inside a deceleration lane are dangerous because traffic behind you may already be slowing aggressively. Reading guide signs early lets you reposition while everyone is still at highway speed.
The most common mistake
Drivers often wait to see the actual exit before merging right, then cross multiple lanes at the last second. This causes brake checks and rear end crashes near the gore point.
North Dakota specific note
North Dakota's exam includes blizzard whiteout response procedures. For this question in particular, the North Dakota Department of Transportation aligns with the standard interpretation explained above. Always verify against the most recent North Dakota driver handbook before relying on these details for the live exam.
Study tip
Memorize the color code: green is guide, blue is services, brown is recreation, white is regulatory, yellow is warning, orange is work zone, red is prohibition.
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