Drinking coffee will not reduce your blood alcohol concentration (BAC). While it may help you to stay awake, it cannot change your BAC or make you sober.

White lines between lanes indicate that the lanes are traveling in the same direction. Broken white line markings indicate that it is legal to pass another vehicle when safe.

This sign indicates that a divided highway begins ahead.

Warning signs are usually yellow with black markings. This sign alerts drivers to where pedestrians may be crossing. If a pedestrian is crossing in a crosswalk marked with this sign, drivers must stop and remain stopped until the pedestrian is no longer in the crosswalk.

You must yield the right-of-way to any emergency vehicle that is using its siren and flashing lights. Do this by driving to the right edge of the road and stopping, taking care not to stop in an intersection. You may move again after the emergency vehicle has passed.

You should always signal when turning, changing lanes, slowing down, or stopping so that other drivers, motorcyclists, bicyclists, and pedestrians will know your intentions.

Do not pass unless you have enough space to return to the driving lane. Before you return to the driving lane, be sure you have enough room between yourself and the vehicle you have passed. When you can see both headlights of the passed vehicle in your rearview mirror, it is safe to return to the driving lane.

Your turn signals should always be used when you make any movement to the left or right. You should use your signal when pulling into traffic from a curbside parking space, moving into a new lane, or passing another vehicle.

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.

Any defect that may affect the safe operation of a vehicle should be corrected as soon as possible. Defects should be corrected before the vehicle is driven.

A flashing yellow arrow indicates that left turns are allowed in the direction of the arrow. However, the oncoming traffic has a green light and you must yield to oncoming traffic and pedestrians.

A round sign means you are approaching a railroad crossing. This sign is posted a few hundred feet in front of the tracks and tells drivers to slow down, look, listen, and prepare to stop.

Driving too fast for conditions is a major cause of motor vehicle crashes. Being inattentive to surroundings can cause a driver to collide with other vehicles. Most rear-end collisions are caused by drivers following other vehicles too closely.

By definition, blind spots are areas that cannot be seen using your mirrors. To check your blind spots, you should look over your shoulders.

When a stopped school bus is using its flashing red lights, approaching drivers must stop and remain stopped until the lights stop flashing. If the school bus is on the opposite side of a divided highway, drivers do not need to stop.

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.

Pennant-shaped warning signs like this are only used to indicate a no passing zone.

Glancing back and forth between the right side of the road and the road directly ahead allows you to avoid the glare of oncoming headlights while still staying safely in your lane.

The faster you drive, the smaller your field of vision becomes. As your speed increases and your field of vision decreases, you must be extra alert to potential hazards.

Warning signs are usually yellow with black markings. This sign indicates that a divided highway is beginning and cars should keep to the right.

The color orange is used only for construction and maintenance warning signs.

You must yield to pedestrians at all times. If the pedestrians are jaywalking or crossing the street where they should not be, you must still stop for them.

This sign prohibits U-turns. Do not make a U-turn where this sign is posted.

A flashing red light means that you must stop, yield to traffic and pedestrians, and go only when it is safe. At a railroad crossing, a flashing red light indicates that a train is approaching. Yield to the train, and go only when the lights have stopped flashing and all other active warning devices deactivate.

Warning signs are used to warn drivers about upcoming hazardous conditions and are usually yellow with black markings. This sign tells drivers that they are approaching a school zone and that they should slow down and watch for children.