A steady green traffic light indicates that the driver may continue through the intersection. The driver should yield to traffic or pedestrians already in the intersection and proceed when the intersection is clear.

Expect a train on any track, at any time, traveling in either direction. If you need to stop after crossing the tracks, wait until you can completely cross the tracks before proceeding. Make sure your vehicle clears the tracks before you stop.

Remember that all medications, prescription or over-the-counter, are potentially dangerous and could impair your driving. Over-the-counter medicines that you take for colds and allergies can make you drowsy and affect your driving ability. It is your responsibility to know how your medication affects your ability to drive.

This sign warns of a dangerous downgrade or hill ahead. The hill may be very long or steep, or it may have sharp curves.

If an oncoming driver fails to dim their headlights, look toward the right side of the road. This will keep you from being blinded by the other vehicle’s headlights and allow you to see enough of the road to stay on course. Do not try to retaliate by keeping your bright lights on.

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.

To stay aware of hazards, you should scan the road and check your rearview mirrors every two to five seconds. Constantly staring at just the road ahead of you is dangerous. If you must drive in foggy conditions, you should use your low beam headlights, not your high beam headlights.

A round yellow sign indicates that there is a railroad crossing ahead.

If your vehicle begins to skid, release the accelerator or brake pedal to regain vehicle balance. Steer in the direction of the skid to regain control of the vehicle.

After a collision, if no one has been injured or killed and you can safely do so, you should move your vehicle out of the traffic lane.

When a steady yellow light appears on a traffic signal, you should prepare to stop. If you are already within the intersection, you should clear the intersection as quickly as possible.

With decreased visibility and the glare of oncoming headlights, you cannot see as far ahead at night as you can during the day. Always use headlights and exercise caution when driving in the dark.

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 a road has four or more lanes with two-way traffic, drive in the right lanes unless you are passing or turning left. If you are on an interstate highway and are driving below the speed of the flow of traffic, use the right lane.

Yield the right-of-way to a driver on your right if both of you arrive to a four-way intersection at the same time. You may then proceed when it is safe to do so.

Pedestrians who use guide dogs or white canes (with or without a red tip) must be given the right-of-way at all times.

The only way to remove the impairing effects of alcohol is to give the body time to remove it from the body. Drinking coffee, physical activity, or taking a cold shower will not speed up this process. It takes about one hour to cancel the effects of one drink.

If a tire suddenly blows out while you are driving, hold the steering wheel tightly and keep the vehicle going straight.You should slow down gradually, taking your foot off the gas pedal and using the brakes lightly. Do not stop on the road if at all possible. Pull off the road in a safe place.

There is zero tolerance for alcohol use by drivers under age 21. If you are under 21, the detection of any trace of alcohol in your system will result in stiff penalties, including the suspension of your license for two years.

Driving during the first half hour of rainfall is dangerous because roadways become extremely slippery when the water mixes with oil and other chemicals on the road surfaces that have not yet washed away. Use extra caution when driving on slippery roads.

When changing lanes, look over your shoulder in the direction you plan to move. Check for obstructions near the rear corners of your vehicle. These areas are called “blind spots” because you cannot see them by using your mirrors.

A wet, slippery road does not allow your tires the traction they need, so it is necessary to drive more slowly on a wet road than you would on a dry road. To reduce the risk of skidding, you should avoid fast turns or stops.

You are required by law to use your low beams when you are within 500 feet of an oncoming vehicle or when you are following within 500 feet of another vehicle. High beam headlights can blind nearby drivers, making driving conditions unsafe.

Warning signs are usually yellow with black markings. These signs alert drivers to areas where bicycles may be crossing.

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.

When leaving an interstate, you should maintain your speed until you enter the deceleration lane, at which point you should reduce your speed to the exit ramp's posted advisory speed.

When making any turn, turn from the lane closest to the direction you wish to travel into the first available legal lane. If you are making a left turn from a one-way street, this means that you would make the turn from the lane nearest to the left curb.

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.

An octagonal (eight-sided) sign always means "Stop." Come to a complete stop, yield to traffic and pedestrians that have the right-of-way, and proceed when the way is clear.

An octagonal sign always means stop. When approaching a stop sign, you must come to a complete stop at the marked stop line and proceed only when it is safe to do so. If there is no stop line, stop before the crosswalk. If there is no crosswalk, stop before the intersection at a point from which you can see any oncoming traffic.