One Way Sign
The one way sign is a rectangular black and white sign with a large arrow pointing in the direction that traffic flows. It indicates that vehicles on that road may only travel in the direction the arrow points. One way signs are most common in urban areas, downtown grids, and near highways. They're typically posted at intersections to let you know the cross street only carries traffic in one direction. When turning onto a one-way street, you must travel in the direction of the arrow. Turning the wrong way onto a one-way street puts you directly in the path of oncoming traffic and is one of the most dangerous driving mistakes you can make. One way signs come in pairs — you'll often see one on each side of the road at the intersection. The arrow can point left or right depending on the direction of traffic flow. To confirm a street is one-way, also look for other clues: all parked cars facing the same direction, traffic signals visible only from one direction, and the absence of center line markings. Some cities also post "DO NOT ENTER" signs at the exit end of one-way streets for additional safety.
Rules & What to Do
Only drive in the direction the arrow indicates. When turning onto a one-way street, ensure you're entering in the correct direction. Look for parked cars and traffic flow to confirm direction. When turning left onto a one-way street, you may turn from the left lane.
Penalties
Driving the wrong way on a one-way street is a serious violation with fines ranging from $150-$500 and 2-4 points on your driving record. It may also result in reckless driving charges if it endangers others.
For Commercial Drivers
CDL drivers must be especially aware of one-way streets in unfamiliar cities during deliveries. Large vehicles are harder to turn around if you accidentally enter a one-way street going the wrong direction. Plan your route in advance and watch for one-way signs at every intersection. Getting a large truck stuck on a one-way street going the wrong way creates major traffic and safety problems.
Frequently Asked Questions
What does a one way sign look like?
A one way sign is a rectangular black sign with a white horizontal arrow pointing in the direction traffic must travel. It's typically posted at intersections on one-way streets.
Can you turn left onto a one-way street?
Yes, you can turn left onto a one-way street, and you may do so from the far left lane. In most states, you can even turn left onto a one-way street from a one-way street on a red light, after stopping, when it's safe.
What happens if you go the wrong way on a one-way street?
Going the wrong way on a one-way street is a traffic violation that can result in a fine and points on your license. More importantly, it's extremely dangerous because you'll be driving directly into oncoming traffic.