Pennsylvania: Cheat Sheet
The most frequently tested facts and numbers, condensed onto one page — free to print or save.
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Road signs
- At a STOP sign you must stop completely, check for pedestrians and cross traffic, and clear the intersection before you go again; slowing down without a full stop is illegal.
- At a YIELD sign, you stop only when it is necessary; otherwise proceed when you can do so safely without interfering with normal traffic flow.
- The DO NOT ENTER sign is put at the beginning of one-way streets and ramps to tell you not to drive onto that street or ramp in the direction you are heading.
- In a lane controlled by a turn arrow and the word "ONLY," you must make the turn shown, even if you are in that lane in error.
- A SPEED LIMIT sign indicates the maximum legal speed under ideal conditions for the stretch of highway where it is posted.
- The WINDING ROAD (SERIES OF CURVES) sign indicates there are three or more curves in a row on the road ahead.
- Do not enter a low clearance area if your vehicle is taller than the height listed on the sign.
- A downward-pointing arrow on a SCHOOL sign means you are at the school zone crosswalk; slow down, watch for children crossing, and stop if necessary.
- A Right Hazard marker (for an object on the right side of the road) tells you to keep to the left.
Sign shapes and colors
- The STOP sign is the only octagon-shaped (8-sided) sign you see on the highway.
- YIELD signs are triangular (3-sided) in shape.
- Warning signs are usually diamond shaped with black symbols or words on a yellow background.
- The NO PASSING ZONE sign is the only pennant-shaped warning sign; it marks the beginning of a no-passing zone.
- The SCHOOL sign is the only pentagon-shaped sign used on the roadway.
- Work Zone signs are normally diamond shaped like warning signs, but they are orange with black lettering instead of yellow with black lettering.
Traffic signals
- You may turn right on red unless a NO TURN ON RED sign is posted, but you must first stop and yield to pedestrians and other traffic.
- A steady yellow light warns that red is coming; slow down and prepare to stop, unless you are within the intersection or cannot stop safely.
- A steady red arrow means you must stop and may not turn in the direction the arrow points; wait for a green arrow or a flashing yellow arrow. The same turns-on-red allowed at a steady red light are allowed at a steady red arrow.
- A flashing red light has the same meaning as a STOP sign: come to a complete stop, look both ways, and proceed only when the intersection is clear.
- A flashing yellow light means caution: slow down, look, and proceed with care.
- A flashing yellow arrow means you may turn in that direction with caution, but you must first yield to oncoming traffic and pedestrians because the turn is not protected.
- A non-functioning traffic signal should be treated as though it were a four-way STOP sign.
- A steady red X over a lane means you are not allowed to use that traffic lane.
Pavement markings
- Yellow lines divide traffic traveling in opposite directions and are used to mark the center of two-lane roads and the left edge of divided highways, one-way streets and ramps.
- Solid white lines divide lanes of traffic traveling in the same direction and are also used to mark the right edge of the road.
- A double, solid yellow centerline shows the center of a two-way road; even if it is not marked with a NO PASSING sign, passing by traffic in either direction is not allowed.
- You may pass if the broken line is on your side of the road and safe conditions exist, but you may not pass when a solid yellow line is on your side.
- YIELD or white triangles painted across the lane indicate you must yield to approaching traffic.
- ONLY with a left or right arrow indicates the lane is reserved for turns only.
Right of way & turning
- If two vehicles reach a four-way stop at the same time, the driver on the left yields to the driver on the right.
- Drivers turning left must yield to oncoming vehicles going straight ahead.
- Drivers entering a circular intersection must yield the right-of-way to drivers already in the circle.
- A vehicle entering a public highway from an alley, private road or driveway must wait until the main road is clear.
- You may not pass if you are within 100 feet of or are crossing any intersection or railroad grade crossing.
- Traffic in a roundabout moves counterclockwise, so that all turns into and out of the circle are right turns.
- If you are turning from a one-way street onto another one-way street, you may turn left on red after stopping, if traffic is clear and there is no NO TURN ON RED sign.
Alcohol & drugs
- A driver 21 or older is considered driving under the influence if their BAC is .08 or higher.
- A driver under 21 is considered to be driving under the influence if their BAC is .02 or greater.
- You should consider one (1) drink to be 1.5 oz. of 80 proof liquor, 12 oz. of regular beer, or 5 oz. of wine.
- Only time will 'sober you up' — you cannot reduce your blood alcohol concentration by drinking coffee, other caffeinated beverages, or taking a cold shower.
- The Implied Consent Law says you have agreed to take a chemical test of breath or blood just by being licensed to drive in Pennsylvania.
- Refusing one or more chemical tests after a DUI arrest results in an automatic one-year suspension.
Speed & following distance
- A 4-second following distance will allow you to steer or brake to avoid a hazard safely on the highway, if the pavement is dry.
- The manual states the maximum speed limit in Pennsylvania is 70 mph.
- In school zones, the speed limit is 15 mph when the school zone sign's lights are flashing or during the posted time period.
- You can hydroplane at speeds as low as 35 mph, when water is only 1/10 of an inch deep.
- Reduce your speed by 5 to 10 mph on wet roads and increase your following distance to 5 to 6 seconds.
- On packed snow, decrease your speed by half; on ice, slow to a crawl.
Emergencies and special situations
- With ABS, maintain firm and continuous pressure on the brake pedal; the vehicle will not skid, and you should not pump the brake pedal.
- Stay off of your brake after a blowout - braking will cause you to skid and lose control of your vehicle.
- Six inches of water - about the length of a dollar bill - can cause some cars to lose control or stall.
- The most important things to remember after a drop-off are: do not steer sharply, and do not brake suddenly.
Sharing the road
- You must stop at least 10 feet away from a school bus stopped with its red lights flashing and stop arm extended.
- When passing, a driver must allow at least four feet between the vehicle and a bicycle to pass safely.
- The No-Zone represents the danger areas around trucks and buses where crashes are more likely to occur, largely because you cannot be seen by the driver.
Pedestrian rights
- Drivers must always yield to any blind pedestrian carrying a white cane or being led by a guide dog.
- The manual instructs drivers to yield to pedestrians crossing at intersections or in crosswalks.
Railroad crossings
- You are required to stop when there is any signal of an approaching train: flashing red lights, a lowered gate, a flagger signaling, or the train's audible signal.
- Never stop on a railroad track; if traffic is backed up, make sure you stop your vehicle in a location entirely clear of the tracks.
Emergency vehicles & work zones
- You must pull over to the curb or side of the road and stop when you hear a siren or see an emergency vehicle's flashing lights approaching from any direction.
- The Move Over law requires motorists to move into a lane that is not adjacent to an emergency response area and/or a disabled vehicle.
- By law, you must turn on your vehicle's headlights, not just the daytime running lights, when driving through an active work zone.
Freeway driving
- The manual is clear: if you miss your exit, take the next one. Backing up, stopping, or crossing the median are described as illegal and hazardous.
- The manual notes that the entering driver is required to yield the right-of-way to traffic already on the highway, even though other drivers may courteously make room.
- The manual stresses that to maintain control on curves, you must slow down before you enter the curve, not after.
Parking rules
- The manual lists 15 feet of a fire hydrant as a place you may never stop, stand, or park.
- You may not stop, stand, or park within 20 feet of a crosswalk at an intersection.
Seat belts & child safety
- Pennsylvania law requires all drivers and front seat passengers in cars, light trucks, and motor homes to wear seat belts.
- Children under age 4 must be buckled into a federally-approved child safety seat secured to the vehicle by the seat belt or LATCH system, no matter where they ride.
- Children ages 4 and older but under 8 must be buckled into a federally-approved booster seat secured by the seat belt system and used with lap and shoulder belts.
Distracted driving
- Violating the anti-texting law is a primary, summary offense with convictions carrying a $50 fine.
- A distraction is anything that causes you to take your attention away from driving, your eyes off the road, or your hands off the wheel.
Signals & vehicle controls
- State law requires headlight use when you cannot see pedestrians or vehicles on the highway for a distance of 1,000 feet ahead.
- You must always use your turn signals at least 100 feet before turning, if you are driving less than 35 mph.
Licensing basics
- Drivers under 18 must complete at least 65 hours of behind-the-wheel skill-building, including no less than 10 hours of nighttime driving and 5 hours of bad-weather driving, before the Road Test.
- Junior license holders may not drive between 11 p.m. and 5 a.m. unless a parent, guardian, person in loco parentis, or spouse who is 18 or older is with them.
- The Knowledge Test consists of 18 multiple-choice questions, and you must answer 15 correctly to pass.
Driving record & points
- PennDOT begins corrective action when a driving record reaches six (6) or more points.
- Three points are removed from a driving record for every 12 consecutive months without a suspension, revocation, or qualifying violation.
Financial responsibility & insurance
- Pennsylvania law requires you to maintain automobile liability insurance on your registered vehicle at all times.