Divided Highway Sign
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A yellow diamond showing two arrows split apart by a central bar warns that a single shared road is about to become two separate one-way roadways. The divided-highway sign is really a heads-up about a change in road architecture: a median is coming, and traffic in each direction will be physically kept apart. Knowing that in advance keeps drivers from wandering toward the wrong side.
What it means
This sign tells you the road ahead divides into two one-way roadways separated by a median, curb, or barrier, and that you must keep to the right of the divider. The two arrows pointing around a central element show exactly how the lanes split. After the division, oncoming traffic will be on a completely separate roadway rather than just across a painted line.
Why this sign exists
Separating opposing traffic with a physical median is one of the most effective ways to prevent head-on collisions, which are among the most lethal crashes on the road. The divided-highway sign exists to prepare drivers for that transition so no one drifts left into what is now a one-way roadway or treats the median as a passing zone. The warning is also crucial at night or in poor weather, when a driver might otherwise mistake the start of a median for an obstacle in the road. Its diamond shape and yellow color place it in the warning family, signaling a change in the road's layout rather than issuing a command. A companion sign often marks where the divided section ends and two-way traffic resumes, since that transition carries its own risks.
Where you see it
You see it where a two-lane road widens into a divided highway with a grass or concrete median, at the start of expressway segments, and where a town's main street becomes a boulevard with a planted center strip. It is posted in advance of the point where the median begins. On longer corridors it may reappear after intersections that interrupt the median.
Real driving scenarios
- A rural two-lane road approaches a town and the sign warns that a grass median is about to separate the directions, so you stay right as the road splits.
- At night you see the divided-highway sign and recognize the dark shape ahead as a median, not a stalled car, easing off the brakes you almost hit.
- Leaving a divided section, a companion sign warns two-way traffic resumes, reminding you that oncoming cars will again share your roadway.
What happens if you ignore it
Mistaking a divided roadway for a two-way road can lead a driver onto the wrong side, into a one-way stream of oncoming traffic, with the head-on risk the median was built to prevent. Drivers who try to cross or drive along the median, or who turn into the wrong roadway, court severe crashes. Legally, driving on the wrong side of a divided highway or making an illegal crossing of a median is a serious violation in most states and can bring substantial penalties, license points, and, if a crash results, liability for the harm caused. Wrong-way driving on a divided road is treated as especially dangerous.
DMV exam trick questions
The phrasings that catch people out on the written test:
On a divided highway, which side should you keep to: left or right?
Right. Each roadway is one-way, and you must stay to the right of the median or divider.
The median on a divided highway is a legal place to make a U-turn whenever you wish. True or false?
False. Crossing the median is generally prohibited except at designated openings, and unlawful crossings are a serious violation.
Does the divided-highway sign mean the road is ending?
No. It means the road is splitting into two separate one-way roadways with a median, not that the road stops.
How it compares to similar signs
- vs Divided-highway-ends sign: The begins version warns a median is about to separate the directions, while the ends version warns the median stops and two-way traffic resumes ahead.
- vs Two-way-traffic sign: The two-way-traffic sign uses two arrows pointing in opposite directions to warn oncoming cars share your roadway, the reverse of the divided-highway message of separation.
- vs Keep-right sign: A keep-right sign is a regulatory black-and-white sign placed at an actual island or obstruction; the divided-highway sign is a yellow warning about the road's overall layout ahead.
Memory aid
Two arrows part around a wall: think of a river splitting around an island, each branch flowing one way.
State-by-state notes
Rules on where you may legally cross a median and make U-turns vary, and many states reserve median crossings for marked openings or emergency vehicles, so do not assume any gap in the median is a legal turnaround.
Common mistakes
- Drifting left toward what is now a one-way oncoming roadway
- Treating a median gap as a free spot to make a U-turn
- Confusing the begins and ends versions and being surprised when two-way traffic resumes
Keep studying this topic
Divided Highway Sign FAQ
What does the divided-highway sign mean?
It warns that the road ahead splits into two separate one-way roadways divided by a median, and that you must keep to the right.
Why are highways divided?
A physical median keeps opposing traffic apart and sharply reduces head-on collisions, which are among the deadliest crashes.
Can I make a U-turn across the median?
Generally no, except at designated openings. Crossing a median where it is not permitted is a serious violation in most states.
What is the difference between the divided-highway begins and ends signs?
The begins sign warns a median is about to separate the directions, while the ends sign warns the median stops and you will again share the road with oncoming traffic.
What should I do when a divided section ends?
Slow if needed, stay right, and be alert that oncoming traffic will once again be on your roadway rather than behind a median.