Drivers must yield to pedestrians when they are crossing at any intersection without a traffic light, whether or not there is a crosswalk.

If you are following another vehicle at a railroad crossing, check to make sure you have enough room to get all the way across before you drive onto the tracks. You should never try to pass another vehicle as you approach or cross a railroad crossing. Always check for trains before crossing any railroad tracks.

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

It is illegal to drive so slowly that you disrupt the normal flow of traffic. You may receive a citation for driving too slowly.

If you are underage and are arrested and detained for blood, breath and/or urine testing, parental consent to conduct these tests is not required; however, the police will notify your parents of the arrest.

Because hydroplaning is caused by driving too quickly in wet conditions, the risk of it happening can be reduced by driving more slowly.

When a school bus stops with its lights flashing and its stop arm extended, you must stop at least 10 feet away from the bus. Remain stopped until the red lights stop flashing, the stop arm has been withdrawn, and the children have reached a safe place. This is the law whether you are approaching the bus from behind, approaching it from the opposite direction, or approaching it at an intersection at which the school bus is stopped.

If you encounter an aggressive driver, you should make every attempt to get out of their way. You should avoid making eye contact with a hostile driver. Challenging a hostile driver by speeding up may only make them angrier, thereby increasing their danger.

When driving near a blind pedestrian who is carrying a white cane or walking with a guide dog, you must slow down, yield the right-of-way, and then proceed with caution. Be prepared to stop your vehicle in order to prevent injury or danger to the pedestrian.

If the police arrest you for driving while under the influence of alcohol or drugs and you refuse to take one or more chemical tests of breath, blood, or urine, your driving privilege will be automatically suspended for one year. This suspension will remain in place even if you are found not guilty of driving under the influence.

A speed limit sign shows the maximum legal driving speed for the stretch of highway where it is posted. Driving safely may require you to travel more slowly than the posted limit. When conditions are less than ideal, drivers should slow down.

"Highway hypnosis” happens when you stare straight ahead at the roadway for long periods of time and stop actively scanning ahead, behind, and around your vehicle. This can lead you to zone out, making you very likely to crash into traffic slowing or stopping ahead of you.

The most frequent crash type in which 16-year-old drivers in Pennsylvania are involved is a single-vehicle, run-off-the-road crash. From 2009 to 2011, there were 2,293 crashes and 45 people killed.

Chevron signs like this indicate that the road curves sharply in the direction indicated by the chevron (in this case, to the left). There may be several chevron signs placed throughout a curve.

If you are stopped by the police, keep your hands on the wheel and ask any passengers to keep their hands in view as well. You should remain in the vehicle unless the police officer asks you to get out. Wait until the officer asks you to retrieve your driver license, registration, and insurance cards.

The legal drinking age in Pennsylvania is 21.

"Reduced speed" signs inform drivers that they must reduce their speeds. If a new speed limit is posted on one of these signs, the new speed limit begins at the sign.

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.