Center lane left turn only (two-way left turn)
The center lane is shared for left turns from both directions.
What to do: Use the center lane only to complete a left turn.
Shape: square · Color: white
Handbook p. 20 ↗Oklahoma road signs
Oklahoma road signs and meanings.
Explore 62 signs and driving illustrations from this course’s handbook edition. Each entry pairs the image with its meaning and a practical action. Use your browser’s Find command to look up a name or a word from a meaning.
Look, recognize, act
Notice the shape and color before reading a sign’s words or symbol. Then connect its meaning with what you should do: stop, yield, adjust your speed, choose a lane, or prepare for a hazard. Signals, markings, and diagrams are included where the handbook uses them to explain a driving rule.
Use the source page link for the surrounding rule. Some illustrations show a complete road situation rather than a standalone roadside sign.
Your handbook sign library
62 entries. Sign images and page references belong to the handbook edition used for the Oklahoma course.
Do not enter
Entry is prohibited on this roadway.
What to do: Do not drive past this sign in this direction.
Shape: square · Color: red
Handbook p. 20 ↗
Do not pass
Passing other vehicles is prohibited here.
What to do: Stay behind the vehicle ahead; do not pass.
Shape: rectangle vertical · Color: white
Handbook p. 20 ↗
Keep right
Keep right of the island, median or obstruction ahead.
What to do: Stay to the right of the marked obstruction as you pass it.
Shape: rectangle vertical · Color: white
Handbook p. 20 ↗
Lane-use control sign (left, straight, right only)
Shows which turns each lane must make ahead.
What to do: Get into the lane matching the turn or direction you want.
Shape: rectangle horizontal · Color: white
Left lane must turn left
Vehicles in the left lane are required to turn left.
What to do: Move out of the left lane if you are not turning left.
Shape: rectangle vertical · Color: white
Handbook p. 20 ↗
Left turn only
Vehicles in this lane must turn left.
What to do: Turn left from this lane; do not go straight or right.
Shape: square · Color: white
Handbook p. 20 ↗
Maximum and minimum speed limit
Shows the maximum and minimum legal speeds on that roadway.
What to do: Drive at a speed between the posted maximum and minimum.
Shape: rectangle vertical · Color: white
Handbook p. 33 ↗
No bicycles
Bicycles are not allowed on this roadway.
What to do: Do not ride a bicycle here; use an alternate route.
Shape: square · Color: white
Handbook p. 20 ↗
No drinking and driving
Warns against driving after drinking alcohol.
What to do: Never drive after drinking; arrange another way home.
Shape: rectangle vertical · Color: white
No right turn
Right turns are not allowed here.
What to do: Do not turn right; continue straight or choose another lane.
Shape: square · Color: white
Handbook p. 20 ↗
No trucks
Trucks are not allowed on this roadway.
What to do: Do not drive a truck past this sign; use an alternate route.
Shape: square · Color: white
Handbook p. 20 ↗
No U-turn
U-turns are not allowed here.
What to do: Do not turn around; continue straight or use another route.
Shape: square · Color: white
Handbook p. 20 ↗
Speed limit
Shows the maximum legal speed on that roadway.
What to do: Do not drive faster than the posted speed.
Shape: rectangle vertical · Color: white
Handbook p. 20 ↗
Stop
Come to a complete stop.
What to do: Stop fully at the line, crosswalk or intersection edge; go only when safe.
Shape: octagon · Color: red
Handbook p. 42 ↗
Straight only
Vehicles in this lane must go straight.
What to do: Continue straight; do not turn from this lane.
Shape: square · Color: white
Handbook p. 20 ↗
Added lane
An additional lane begins ahead without merging.
What to do: Continue in your lane; no need to merge for the new lane.
Shape: diamond · Color: yellow
Handbook p. 21 ↗
Curve right
Road curves to the right ahead.
What to do: Slow down and steer smoothly through the right curve.
Shape: diamond · Color: yellow
Handbook p. 21 ↗
Deer crossing
Deer may cross the road in this area.
What to do: Slow down and watch for deer, especially at dawn or dusk.
Shape: diamond · Color: yellow
Handbook p. 21 ↗
Divided highway begins
Road ahead splits into a divided highway with a median.
What to do: Keep right of the median and stay alert for the lane split ahead.
Shape: diamond · Color: yellow
Handbook p. 21 ↗
Divided highway ends
Divided highway ahead merges back into a two-way road.
What to do: Move back toward the right and be ready to meet oncoming traffic.
Shape: diamond · Color: yellow
Handbook p. 21 ↗
Farm equipment
Warns that slow farm equipment may be on the roadway.
What to do: Slow down and pass only when it is safe.
Shape: diamond · Color: yellow
Handbook p. 58 ↗
Hill
Warns of a steep hill ahead.
What to do: Use a lower gear and control your speed on the grade.
Shape: diamond · Color: yellow
Handbook p. 21 ↗
Large arrow
Points drivers in the direction the road turns.
What to do: Follow the direction of the arrow through the turn.
Shape: diamond · Color: yellow
Handbook p. 22 ↗
Left lane ends
The left lane ends ahead and traffic must merge.
What to do: Merge right safely before your lane ends.
Shape: diamond · Color: yellow
Handbook p. 21 ↗
Low clearance
Shows the maximum vehicle height that can safely pass under a structure.
What to do: Do not proceed if your vehicle is taller than the height shown.
Shape: diamond · Color: yellow
Handbook p. 21 ↗
Merge
A lane from the side joins your road ahead.
What to do: Adjust speed and merge safely; yield to traffic already in your lane.
Shape: diamond · Color: yellow
Handbook p. 21 ↗
No passing zone
Marks the start of a section where passing is not allowed.
What to do: Do not pass other vehicles until you are past the no-passing zone.
Shape: pennant · Color: yellow
Handbook p. 20 ↗
Object marker
Marks an obstruction near or in the roadway.
What to do: Steer around the marked obstruction.
Shape: rectangle vertical · Color: yellow
Handbook p. 22 ↗
Object marker (bidirectional)
Marks an obstruction that traffic may pass on either side.
What to do: Steer around the obstruction on either side as needed.
Shape: rectangle horizontal · Color: yellow
Handbook p. 22 ↗
Pedestrian crossing
Warns that pedestrians may be crossing the roadway ahead.
What to do: Slow down and be prepared to stop for pedestrians.
Shape: diamond · Color: yellow
Handbook p. 50 ↗
Playground
A playground area is near the road ahead.
What to do: Slow down and watch for children playing near the road.
Shape: diamond · Color: yellow
Reverse curve
Road curves right then left ahead.
What to do: Slow down and steer carefully through both curves.
Shape: diamond · Color: yellow
Road narrows
Warns the roadway ahead becomes narrower.
What to do: Slow down and merge safely into the narrower road.
Shape: diamond · Color: yellow
Handbook p. 21 ↗
Roundabout ahead
A roundabout is ahead where traffic circles counterclockwise.
What to do: Slow down and yield to traffic already in the roundabout.
Shape: diamond · Color: yellow
Signal ahead
Warns that a traffic signal is coming up.
What to do: Slow down and be prepared to stop at the signal.
Shape: diamond · Color: yellow
Handbook p. 21 ↗
Slippery when wet
Road may be slick from rain, ice or oil.
What to do: Slow down, avoid sudden braking or sharp turns, and increase following distance.
Shape: diamond · Color: yellow
Stop ahead
Warns that a stop sign is ahead.
What to do: Begin slowing down and prepare to stop at the upcoming stop sign.
Shape: diamond · Color: yellow
Handbook p. 21 ↗
Two-way traffic
The road ahead carries traffic in both directions.
What to do: Stay in your lane and watch for oncoming vehicles.
Shape: diamond · Color: yellow
Handbook p. 21 ↗
Winding road
The road has several curves ahead.
What to do: Slow down and drive carefully through the series of curves.
Shape: diamond · Color: yellow
Y intersection
The road ahead forks into a Y-shaped intersection.
What to do: Slow down and choose the correct branch of the fork.
Shape: diamond · Color: yellow
School speed limit when flashing
The lower speed applies only while the beacon is flashing.
What to do: Slow to the posted speed when the light is flashing.
Shape: rectangle vertical · Color: yellow
Handbook p. 20 ↗
School zone
You are approaching a school area or crossing.
What to do: Slow down, watch for children, and be ready to stop.
Shape: pentagon · Color: yellow
Railroad crossbuck
Marks a railroad crossing; motor vehicles must yield to trains.
What to do: Slow down, look both ways, listen, and stop if a train approaches.
Shape: crossbuck · Color: white
Handbook p. 22 ↗
Railroad crossbuck with multiple tracks plaque
Marks a railroad crossing with more than one track.
What to do: Check for a second train before crossing after the first passes.
Shape: crossbuck · Color: white
Handbook p. 22 ↗
Railroad crossing ahead
Warns that a railroad crossing is ahead.
What to do: Slow down, look and listen for trains, and be ready to stop.
Shape: circle · Color: yellow
Handbook p. 22 ↗
Arrow panel
A lighted panel that directs traffic to move left in a work zone.
What to do: Move left in the direction the lighted chevrons show.
Shape: rectangle horizontal · Color: black
Handbook p. 23 ↗
Barricade panel
A striped panel channels traffic around a work zone.
What to do: Do not drive past a barricade panel blocking the roadway.
Shape: rectangle vertical · Color: red
Handbook p. 24 ↗
Channelizing post with warning light
A striped post with a light marks the edge of a work zone.
What to do: Stay clear of the marked path edge.
Shape: rectangle vertical · Color: orange
Handbook p. 24 ↗
Flagger ahead
A worker will direct traffic ahead.
What to do: Slow down and be ready to stop or follow the flagger's directions.
Shape: diamond · Color: orange
Road construction ahead
Warns of road construction a set distance ahead.
What to do: Slow down and watch for workers and equipment.
Shape: diamond · Color: orange
Handbook p. 23 ↗
Road construction next 5 miles
Warns of construction along the next several miles of road.
What to do: Slow to the posted speed and watch for workers.
Shape: rectangle horizontal · Color: orange
Handbook p. 23 ↗
Traffic cone
Cones mark boundaries around a work zone or hazard.
What to do: Stay clear of cones and follow the marked path.
Shape: other · Color: orange
Handbook p. 24 ↗
Type II barricade
A striped barricade channels traffic around a work zone.
What to do: Do not drive past a barricade blocking the roadway.
Shape: rectangle vertical · Color: orange
Handbook p. 24 ↗
Type III barricade
A large striped barricade blocks or channels traffic at a work zone.
What to do: Do not drive past a barricade blocking the roadway.
Shape: rectangle horizontal · Color: orange
Handbook p. 24 ↗
Workers ahead
Road workers are working near or in the roadway.
What to do: Slow down and watch for workers and equipment.
Shape: diamond · Color: orange
Destination and distance
Shows the direction and distance to nearby towns.
What to do: Use the sign to plan your route and lane position.
Shape: rectangle horizontal · Color: green
Handbook p. 25 ↗
Interstate guide sign (destination)
Shows the Interstate route and the destination it leads to.
What to do: Use the sign to confirm your route and destination.
Shape: rectangle vertical · Color: green
Handbook p. 25 ↗
Interstate guide sign with exit distance
Shows the Interstate route, destination and distance to the exit.
What to do: Move into the exit lane as the distance counts down.
Shape: rectangle vertical · Color: green
Handbook p. 25 ↗
Accessible facility
Marks a facility or space accessible to people with disabilities.
What to do: Use as directed; reserve marked accessible spaces for permit holders.
Shape: square · Color: blue
Broken yellow center line
Passing is allowed from either side when safe.
What to do: You may cross to pass when the way is clear.
Shape: n/a · Color: n/a
Handbook p. 32 ↗
Solid yellow center line
Passing is not allowed on the side of a solid yellow line.
What to do: Do not cross a solid yellow line to pass.
Shape: n/a · Color: n/a
Handbook p. 32 ↗