Pennsylvania DMV Permit Test: Signs, Signals, and Pavement Markings Concepts
Importance ★★★★★ · 30% (estimate)
Overview
Signs, traffic signals, and lines on the pavement all tell you how to drive before you reach a hazard. This chapter covers the three families of signs (regulatory, warning, and guide), what steady and flashing lights and arrows mean, and how to read yellow and white lines on the road.
Shape and color tell you a lot even before you can read the words. The red eight-sided sign always means stop, and the red and white triangle pointing down always means yield. Warning signs are usually yellow diamonds with black words or symbols, and work zone signs are orange. The pennant-shaped sign on the left side of the road marks the start of a no passing zone, and the five-sided sign means you are coming to a school zone.
Traffic signals work the same way every time. A flashing red light means the same as a stop sign, and a flashing yellow light means slow down and go with care. A green arrow gives you a protected turn, while a flashing yellow arrow lets you turn only after you yield to oncoming traffic and pedestrians.
Pavement markings finish the picture. Yellow lines separate traffic moving in opposite directions, and white lines separate lanes moving the same way. You may pass when a broken yellow line is on your side, but never across a solid yellow line on your side or across a double solid yellow line.
Key concepts
Stop and yield signs
A red eight-sided sign means come to a full stop and go only when it is safe. A red and white triangle pointing down means slow down and give the right of way to traffic and pedestrians, stopping if you need to.
Memory tipEight sides: stop all the way. Triangle pointing down: give way.
Warning and work zone signs
Warning signs are usually diamond shaped with black words or symbols on a yellow background. They warn of hazards ahead, such as curves, merging traffic, or a traffic signal ahead. Work zone signs are normally diamond shaped too, but orange with black lettering.
Memory tipYellow diamond: hazard ahead. Orange: road work.
Source: Pennsylvania Driver's Manual (PennDOT) · as of 2025
No passing zone sign
The only pennant-shaped warning sign. It is yellow, is placed on the left side of the road facing the driver, and marks the beginning of a no passing zone.
Memory tipPennant on the left, where you would look before passing.
Source: Pennsylvania Driver's Manual (PennDOT) · as of 2025
School zone sign
The only five-sided (pentagon) sign on the road. It means you are approaching a school zone. Its background may be yellow or fluorescent yellow-green.
Memory tipFive sides, like the outline of a schoolhouse.
Source: Pennsylvania Driver's Manual (PennDOT) · as of 2025
Railroad crossing signs
A round yellow sign with an X and two R letters warns that a railroad crossing is ahead. At the tracks, the white X-shaped crossbuck sign should be treated like a yield sign: slow down and be ready to stop if a train is coming.
Memory tipRound sign: railroad ahead. X-shaped crossbuck: you are at the tracks.
Flashing lights and arrows
A flashing red light means the same as a stop sign: stop completely and go only when the intersection is clear. A flashing yellow light means slow down and proceed with care. A flashing yellow arrow allows a turn only after you yield to oncoming traffic and pedestrians.
Memory tipFlashing red acts like a stop sign. Flashing yellow means caution.
Source: Pennsylvania Driver's Manual (PennDOT) · as of 2025
Yellow and white lines
Yellow lines separate traffic going in opposite directions. White lines separate lanes going in the same direction. A broken line may be crossed to pass when it is safe; a solid line on your side may not be crossed to pass. A double solid yellow line means no passing in either direction.
Memory tipYellow means oncoming traffic is on the other side of the line.
Source: Pennsylvania Driver's Manual (PennDOT) · as of 2025
See it in a picture
Often tested
- An eight-sided red sign means stop. A downward-pointing triangle means yield.
- The pennant-shaped NO PASSING ZONE sign is on the left side of the road.
- The five-sided sign means a school zone is ahead.
- A flashing red light means the same as a STOP sign.
- A flashing yellow arrow allows a turn only after yielding to oncoming traffic and pedestrians.
- A double solid yellow line means no passing in either direction.
Easy to confuse: Sign shapes at a glance
| Shape | Color | Meaning |
|---|---|---|
| Octagon (8 sides) | Red | Stop |
| Triangle pointing down | Red and white | Yield |
| Pennant | Yellow | Start of a no passing zone |
| Diamond | Yellow | Warning of a hazard ahead |
| Diamond | Orange | Work zone |
| Pentagon (5 sides) | Yellow or fluorescent yellow-green | School zone |
| Round | Yellow | Railroad crossing ahead |
| Vertical rectangle | White with black | Rule you must obey |
3 sample questions
Verified practice questions from this unit.
Question 1. A red, eight-sided sign has the word STOP in white letters. What must you do?
- ① Slow down and go on if no cars are coming
- ② Come to a full stop, then go only when it is safe
- ③ Stop only if a pedestrian is waiting to cross
- ④ Stop only if another car is already at the intersection
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Answer: ② Come to a full stop, then go only when it is safe
Key point: Red eight-sided sign: always come to a full stop
An eight-sided (octagon) red sign means STOP. You must come to a full stop every time, then go only when the way is clear and you have yielded to traffic and pedestrians.
Wrong choices
- Slow down and go on if no cars are coming: Slowing down is not enough. You must stop completely, even if the road looks clear.
- Stop only if a pedestrian is waiting to cross: The sign applies at all times, not only when pedestrians are waiting.
- Stop only if another car is already at the intersection: You must stop whether or not other vehicles are there.
Question 2. What must you do when you see this sign?
- ① Come to a full stop every time, even if the road is clear
- ② Slow down and let traffic and pedestrians go first, stopping if needed
- ③ Speed up so you can merge ahead of other traffic
- ④ Keep going, because traffic on the other road must wait for you
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Answer: ② Slow down and let traffic and pedestrians go first, stopping if needed
Key point: Downward red-and-white triangle means yield
This red and white triangle pointing down is a YIELD sign. Slow down and give the right of way to traffic and pedestrians. Stop if you need to, and go only when it is safe.
It is the only sign shaped like a triangle pointing down.
Wrong choices
- Come to a full stop every time, even if the road is clear: A full stop every time is what the eight-sided STOP sign requires. At a yield sign you stop only when needed.
- Speed up so you can merge ahead of other traffic: A yield sign tells you to give way, not to speed up.
- Keep going, because traffic on the other road must wait for you: It is the other way around: you must let the other traffic go first.
Question 3. What do warning signs usually look like?
- ① Diamond shaped, with black words or symbols on a yellow background
- ② Round, with white letters on a green background
- ③ Rectangles with white letters on a blue background
- ④ Eight-sided, with white letters on a red background
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Answer: ① Diamond shaped, with black words or symbols on a yellow background
Key point: Warning signs: usually yellow diamonds with black symbols
Warning signs are usually diamond shaped with black words or symbols on a yellow background. They warn of hazards ahead, such as curves, hills, or merging traffic.
Wrong choices
- Round, with white letters on a green background: Green signs are guide signs that show directions and distances.
- Rectangles with white letters on a blue background: Blue signs point to driver services such as gas, food, and hospitals.
- Eight-sided, with white letters on a red background: That describes the STOP sign, which is a regulatory sign.
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