When a protected turn arrow changes from green to yellow, drivers must prepare to yield to oncoming traffic. A yellow arrow indicates that the protected left turn is ending.

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.

Not getting enough sleep is a cause of poor driving behavior. Just like drugs and alcohol, sleepiness slows reaction time, decreases awareness, and impairs judgment.

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 oncoming traffic.

To do your part to prevent road rage, you should follow laws, signs, signals, and pavement markings. Always signal your intention when changing lanes.

When being tailgated, create extra space in front of your vehicle and do not brake suddenly. Slow down gradually or merge into another lane to prevent a collision with the tailgater.

You should enter a freeway at or near the speed of traffic, unless the speed of traffic exceeds the legal speed limit.

If you become tired while driving, it is best to stop to rest or change drivers. Being tired dulls your mind and slows down your reactions, making driving hazardous.

Any person who drives or attempts to drive a motor vehicle on a roadway in Maryland consents to take a test determining the concentration of alcohol, or any other controlled dangerous substance, in their blood. The MVA will suspend the license of any driver who submits to the test and is determined to have at least a 0.08 percent BAC.

This sign indicates that a divided highway begins ahead.

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.

It is necessary to follow farther behind a large truck than you would if following a passenger vehicle because trucks have larger blind spots.

To prevent yourself from becoming an aggressive driver, concentrate on driving and don't take the actions of other drivers personally. Be realistic about your travel time, drive within posted speed limits, and be forgiving of other drivers using the roadway.

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.

In foggy or misty conditions, you should not use your headlights on their high beam setting because the light will be reflected back into your eyes.

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.

A white rectangular sign indicates that you must obey the stated rule. This sign means that drivers should not pass other vehicles for any reason.

Your vehicle's blind spots are the areas that you cannot see in your mirrors. Look over the appropriate shoulder to check your blind spot when changing lanes.

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.

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

Because large trucks require more time to accelerate than smaller vehicles, trucks can lose speed driving up long or steep hills. Be cautious when driving behind a large truck and be sure to give the vehicle additional space, especially when driving on an incline.

Motorcycles can stop quickly and following them too closely endangers your life and that of the motorcyclist. If the motorcyclist makes a mistake, you need to have enough time and space to avoid a crash.

If you try to insert your vehicle between a turning truck or bus and a curb, you may suffer a serious crash. To avoid a collision, do not turn until the truck or bus has completed its turn.

When turning, you should look to the rear and both sides of your vehicle to ensure it is safe to proceed before making the turn. Adjust your speed to safely complete the turn.

Avoid "rubbernecking," or slowing down to look at collisions or anything else out-of-the-ordinary. This helps to relieve traffic congestion.