This sign indicates that U-turns are prohibited. You may see a sign like this at an intersection that commonly has oncoming traffic.

Slow down before you enter a curve because you do not know what may be ahead. Braking on a curve may cause you to skid.

Warning signs are usually yellow with black markings. This sign indicates that there could be traffic merging from the right, so drivers should prepare to allow traffic to safely merge.

This sign indicates that you may not make a U-turn. You cannot turn around to go in the opposite direction at an intersection where this sign is posted.

For drivers age 21 or older, it is illegal to operate a motor vehicle with a blood alcohol concentration (BAC) of 0.08 percent or higher. Driving while under the influence of alcohol is not only illegal, but dangerous.

If stopped by law enforcement, you should stay in your vehicle with both hands clearly in sight on the steering wheel.

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

Warning signs are usually yellow with black markings. They alert you to conditions that are immediately ahead. This sign warns drivers that the number of lanes is reduced ahead and that traffic should merge left.

Blue signs on the roadway are service signs. They are used to provide information about motorist services, such as upcoming rest areas, food options, or nearby hospitals.

Drivers should be alert to the presence of crossing guards when near a school and must always obey their instructions.

When parking facing downhill on a road with or without a curb, or when facing uphill on a road without a curb, turn your front wheels toward the edge of the road so your vehicle will roll away from traffic if the brakes fail. However, when parking uphill on a road with a curb, turn your wheels toward the center of the road so the vehicle will roll into the curb if the brakes fail.

At a railroad crossing, you must stop within 15 to 50 feet if there is a posted stop sign, the electric signal is flashing, the crossing gate is lowered, a flagger issues a signal to stop, or a train is approaching and/or gives a warning.

A conviction for passing a stopped school bus with flashing lights and its stop arm extended will result in the suspension of an individual’s driver license. If the owner of the vehicle was not driving when the offense occurred, they must provide the State’s Attorney’s Office with the name of the person driving the vehicle or their vehicle registration will be suspended for three months.

When approaching a railroad crossing, you must look, listen, slow down, and prepare to stop. Let any trains pass before you proceed.

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.

This sign warns of of an approaching traffic signal.

Warning signs provide notice to road users of a situation that might not be readily apparent and are usually yellow with black markings. This sign warns drivers to be careful when driving under wet conditions as the pavement will become slippery and more difficult to navigate safely.

Slow-moving vehicles, such as farm tractors, road maintenance vehicles, and animal-drawn carts, display an orange and red triangle on the back.

When traffic permits, you should make room to allow vehicles to merge into your lane.

Warning signs are usually yellow with black markings. They alert you to conditions that are immediately ahead. This sign warns drivers about the presence of traffic signals at an intersection ahead.

To avoid the dangers of fatigued driving, take breaks every hour or so during a long trip. If possible, share driving responsibilities with another person so you can each sleep while the other person drives.

All roads are slippery and dangerous when wet. This sign warns of conditions that can cause a driver to lose control of a car. A driver should slow down when coming upon wet pavement because it takes longer to stop.

White lines separate lanes of traffic moving in the same direction. You may cross a dashed white line to pass or change lanes if it is safe to do so.

Drivers must reduce their speed to 20 mph in a school zone on school days between 7 a.m. and 4 p.m., when children are present, and where signs are posted.

A round sign always indicates that you are approaching a railroad crossing.

Make room for vehicles that are entering a freeway. If possible, merge into the next lane to create a gap for the incoming vehicles. If you cannot merge, adjust your speed to allow for the vehicles to enter traffic as smoothly and safely as possible.

Driving above the speed limit, driving too far below the speed limit, and driving too fast for conditions are all actions that commonly contribute to traffic accidents. Always drive with the general flow of traffic, within legal speed limits.

Warning signs are usually yellow with black markings. This sign indicates that you are approaching a steep hill. Slow down and be ready to shift to a lower gear to control your speed and protect your brakes from damage.

A driver may make a right turn at a red light unless there is a sign prohibiting it. Before turning, they must come to a complete stop and yield to other drivers and to pedestrians.

Only use your horn when it is necessary to avoid collisions. Do not use your horn if a driver or bicyclist is moving slowly and you want him or her to drive faster or get out of your way.

You should use your low beam headlights when driving in fog. High beams will reflect back at the driver and lower visibility.

Use your low beam headlights when driving in foggy, snowy, or rainy conditions. Light from high beam headlights will reflect back, causing glare and making it even more difficult to see ahead.

Excessive vehicle speed can have disastrous effects. As a vehicle's speed increases, the potential impact of a collision also increases, elevating the possibility of serious injury and death. Increase your following distance as your speed increases to ensure that you will be able to stop safely if needed.

This sign indicates that there is a yield sign ahead. You should begin to slow down when you see this warning sign.

Your suspension helps you control your vehicle and provides a comfortable ride over varying road surfaces. If your vehicle bounces a lot after driving over a bump, or is generally hard to control, you may need new suspension parts.