When you hear the siren of an emergency vehicle, you must pull over to the curb or side of the road and stop.

Smoking while driving can create dangerous distractions by causing you to take your hands off the wheel and/or your eyes off the road.

Drowsiness can make people drive so poorly that they appear to be drunk. Opening a window, turning on the radio, or drinking coffee is not enough to make a drowsy driver alert to roadway hazards.

Fluorescent yellow-green is used as the background color for pedestrian, bicycle, and school warning signs. Use extra caution when driving around these signs.

If another vehicle is approaching you head-on in your lane, you should first honk your horn to attract attention. If the other driver does not move over, try to escape to the right. If you swerve left and the other driver corrects at the last instant, you will still crash. If a collision is unavoidable, brake firmly and steadily. Every mile per hour you slow down will reduce the impact.

Your ability to handle dangerous traffic situations depends largely on searching for and identifying problems before meeting them. Looking far ahead of your vehicle does not mean you should simply stare at the center of the road. You need to continually scan the entire road, including the sides of the road.

This type of triangular sign means drivers must yield. You must slow down as you come to an intersection marked with this sign and be prepared to stop. Let any other vehicles, bicyclists, or pedestrians pass safely before you proceed.

If you are being followed by an emergency vehicle that is not using its siren or flashing lights, you do not need to clear a path. Continue driving in a normal manner.

When you wish to change lanes or make a turn, signal using the proper arm signal or mechanical turn signal to inform other motorists of your intentions. Signals should be activated at least 100 feet before you begin the turn. If you are using a mechanical signal, continue signaling until you have completed the turn or lane change.

At an intersection of two similar roads without a traffic control device, a driver must yield to a vehicle approaching from the right.

When approaching a roundabout, slow down. A roundabout is designed to be driven at a low speed.

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

Stop lines are solid white lines painted across traffic lanes at intersections and pedestrian crosswalks. They indicate the exact location at which approaching drivers must stop.

This sign indicates where a lane is reserved for the exclusive use of left-turning vehicles from either direction. Such a lane may not be used for passing or for through-traffic.

Any time you want to change lanes, you should properly signal your intentions well in advance, check your mirrors, and check your blind spot. You can check your blind spot by glancing over your shoulder in the direction that you plan to move.

To turn left from multilane streets and highways, start from the left lane.

Fog can greatly reduce your ability to see other vehicles, pedestrians, and traffic signals. When driving in fog, drive cautiously and at reduced speeds. Do not use high beam headlights. Low beams better illuminate the road and objects ahead in foggy conditions.

Stop before the stop line or crosswalk at any intersection that is controlled by a stop sign. If there is a stop sign but no stop line or crosswalk, stop before entering the intersection and proceed when it is safe to do so.

At dusk or on overcast days, you must turn on your headlights. Dim your lights to their low beam setting when within 1,000 feet of an approaching vehicle and when within 500 feet of a vehicle that you are following. When driving in poor weather, always use your low beams.

The average person’s body will process about one alcoholic drink in one hour. However, many factors play a part in determining how impaired a person will become when consuming alcohol, including the amount of alcohol consumed, how fast it is consumed, and a person’s body weight, food intake, and general health.

This sign indicates that there is a Y intersection ahead. You must bear either to the right or to the left.

Consuming alcohol and other drugs together can increase the impairing effects of both. For example, having one drink while you are also using a cold remedy could affect you as much as several drinks would when being consumed separately from any medications.

This sign indicates that there is a railroad crossing on the road ahead. You should always slow down when approaching a railroad crossing. Trains cannot yield to cars, so you must let them pass before crossing the tracks.

Stopping distances increase on wet or icy roads. Stopping distances also increase on road surfaces covered in loose gravel or stones.

If there is no stop line or crosswalk, you should stop at the point nearest to the intersecting roadway where you can get a view of approaching traffic. You should not enter the intersecting roadway to gain a better view.