Only the passage of time can remove alcohol and its impairing effects from the body.

When parking uphill on a road that has a curb, your wheels should be turned away from the curb. When parking uphill on a street without a curb or when parking downhill, your wheels should be turned toward the curb or edge of the road.

If your vehicle is hit from the rear while you are in forward motion, your body will be thrown backward. Brace yourself by pressing against the back of your seat and putting your head against the head restraint to prevent whiplash. Maintain a firm grip on the steering wheel and be ready to apply your brakes to avoid being pushed into another vehicle.

Warning signs are usually yellow with black markings. This sign warns drivers about an upcoming steep hill. Drivers should slow down and be ready to control their speed and protect their brakes from damage.

Every motor vehicle operated in the state of Arizona should be covered by a liability insurance policy. The policy must be an Arizona-based policy that reflects where the vehicle is predominantly operated.

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.

Pedestrians have the right-of-way at street crossings but must obey traffic control signals. Where a traffic signal is not present, vehicles must stop for pedestrians in a crosswalk, whether it is marked or unmarked.

When you wish to change lanes or make a turn, signal to inform other motorists of your intention. Signals should be activated at least 100 feet before you make the turn. Continue signaling until you have completed the turn or lane change.

Low beam headlights should be used in fog, rain, and snow. The light from high beams will reflect back to the driver under these weather conditions, causing a glare that will make it difficult to see ahead.

A roundabout is a circular intersection that usually does not include a traffic signal and flows in a counterclockwise direction around a central island. Motorists must enter from the right, yielding to traffic already in the roundabout, and follow the circle to the right until the desired roadway is reached.

After coming to a full stop, vehicles should proceed through a four-way stop in the order in which they arrive to the intersection. If multiple vehicles arrive at the same time, the vehicle on the left must yield the right-of-way to the vehicle on the right.

Never pass within intersections or at other intersecting points, such as parking lot entrances and alleyways. Any time your view is blocked by a curve or a hill, you should stay in your lane and assume that there is an oncoming vehicle just out of sight. Wherever signs and/or pavement markings permit passing other vehicles, you will have to determine whether or not you have enough space to pass in a safe manner.

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

When a school bus is stopped on the road ahead with its lights flashing and its stop arm extended, you must come to a complete stop and wait to proceed until the lights have stopped flashing and the stop arm is withdrawn. Even after the bus begins to move again, do not proceed until you are sure there are no children crossing the road ahead of you.

You must come to a complete stop at a steady or flashing red traffic light. You must always obey instructions given by officers directing traffic, regardless of any posted signs or traffic signals.

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

Continuous hard braking on snow and ice can result in the locking of the front brake, causing a loss of steering. To avoid the need for excessive braking, make sure to maintain an appropriate speed for conditions.

Regulatory signs provide notice to road users of traffic laws that must be obeyed. Where this sign is present, drivers must drive in the direction indicated by the arrow.

When passing is permitted, look for both headlights of the passed vehicle in your rearview mirror. Only then may you safely return to your original lane.

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.

Before returning to your original lane after passing, you must make sure you are not dangerously close to the vehicle you have just passed. When you can see both of the vehicle's headlights in your rearview mirror, you may have enough room to return to the lane.

Motorcycles can be easily hidden in a vehicle’s blind spot or missed in a quick look due to their small size. Drivers of cars must always be alert and looking for motorcycles, mopeds, and scooters.

If two vehicles arrive at the same time to an intersection that has stop signs on all corners, the vehicle to the right has the right-of-way.

When driving in fog, you should slow down and use your low beam headlights. If the fog is so bad that you cannot see, pull off the road and wait for the fog to clear.

If you start to feel tired while driving, drive to the first available rest stop or service area to take a break, nap, stretch, or change drivers. You should not rely on caffeine pills or energy drinks, as these are not a replacement for rest and may make your driving even more dangerous.

Yellow lines separating lanes of traffic indicate that traffic is moving in opposite directions. Double solid lines indicate that passing is not permitted from either direction.

Before changing lanes, you should check your side mirrors and look over your shoulder to make sure it is safe to proceed.

If an oncoming driver fails to dim their high beams, you should avoid looking directly at the headlights. Instead, look toward the right edge of your lane and watch the oncoming vehicle out of the corner of your eye.

A flashing red traffic light means the same thing as a stop sign. When arriving at an intersection with a flashing red light, you must come to a full stop and proceed when it is safe to do so.

Drivers must obey special signs or instructions given by flaggers. They are in place to keep drivers and workers safe.