A reflective orange triangle on the rear of a vehicle means the vehicle is traveling at speeds slower than 25 mph. You may see this decal on construction equipment, farm vehicles, and horse-drawn wagons or carriages.

When turning left, you should begin to slow down and activate your turn signal at least 100 feet before making the turn. Be careful not to cut the corner short, as this may interfere with other vehicles.

In Oklahoma, fines for all traffic violations occurring in a construction or maintenance zone are doubled if workers are present and warning signs are present in advance of the work zone.

Don’t make a last-minute turn into an exit. If you pass your exit, you must go to the next one.

Lane control signals are used when the direction of the flow of traffic in a specific lane changes throughout the day. They are used to show which lanes of traffic are open and closed, as well as to show if toll booths are open or closed. When a lane control signal contains a steady yellow X, drivers should clear the indicated lane because the lane signal is about to change to a red X.

Even if the signal is green, you must not enter an intersection unless you can get completely across before the light turns red. If you block the intersection, you can be cited.

Make room for vehicles entering the freeway. Whenever possible, change lanes to allow those entering to do so smoothly and safely.

Telltale signs of drunk driving include speeding, weaving, driving more slowly than the normal traffic flow, making jerking motions, and making quick and sudden stops.

Two solid yellow lines down the center of a two-way road mean that neither lane of traffic may cross the lines, unless they are turning off of the roadway. A driver can cross double yellow lines when turning into or out of a driveway or entrance to a business. No passing is allowed over a solid yellow line.

As you enter a work zone, signs and message boards will warn you of workers, slow-moving equipment, and/or closed lanes ahead. You should reduce your speed and be prepared to slow down or stop.

Your blood alcohol content (BAC) depends on how much alcohol you drink, how much time passes between drinks, and your weight. Eating before or while you drink helps slow the absorption of alcohol somewhat, but it cannot prevent intoxication or impairment if you have too much to drink.

Alcohol is a depressant that dulls your judgment and makes your reflexes unreliable.

This sign indicates that a divided highway begins ahead.

Drivers must not pass in a curve or on a hill. Only pass another vehicle when it is safe to do so.

Don’t ever leave the scene of a collision before taking the proper steps. If you leave, you may be prosecuted for a “hit and run.”

This sign informs drivers that they are leaving a divided roadway and approaching a two-way highway.

This sign indicates that the road ahead curves to the right.

Be prepared to reduce your speed and use caution when directed to do so by a sign, crossing guard, or law enforcement officer. Always drive with extra caution in a school zone.

When passing another vehicle that is traveling in the same direction as you, pass quickly to resume visibility. Return to your previous lane only when you can see both of the vehicle's headlights in your rearview mirror.

When there is a solid yellow line and a broken yellow line in the center of the road and the broken line is next to your lane, you may cross the lines to pass if there is no oncoming traffic.