Road markings: the lines and colours that decide answers
11 October 2026 · 6 min read
Paint does half the work on a driving test, and unlike signs it gives you no words to read. Once you learn the two systems behind it, colours and line types, most marking questions answer themselves.
Colour tells you whose lane you are looking at
Yellow separates traffic moving in opposite directions. If you see yellow, the cars on the other side of it are coming towards you. White separates traffic moving in the same direction, and it also marks the edges of the road. That single distinction resolves a surprising number of questions, including the ones that show a line without any other clue.
Broken means you may, solid means you should not
- Broken white: lanes going your way. You may change lanes with care, after signalling and checking.
- Solid white: a lane edge or a boundary you should stay behind, such as beside a bike lane or approaching an intersection.
- Broken yellow: passing is allowed with care when it is safe and not prohibited by signs.
- Solid yellow: no passing in that direction. Double solid yellow means no passing for either direction. When the two lines are different, broken on your side and solid on theirs, only your side may pass.
The trap in these questions is direction. A double yellow with a broken line on the far side does not give you permission to pass. Always decide which side of the line you are on before you read the options.
Markings that mean "do not drive here at all"
Yellow diagonal stripes and chevrons mark a painted island or a buffer zone. You do not drive on them, you do not use them to merge late, and you do not use them as a turning lane. A similar rule applies to the zebra-striped gore area where an off-ramp splits from a highway.
Two more you should recognise on sight: a diamond symbol marking a lane reserved for high-occupancy vehicles or buses, and a shared-lane marking, a bicycle with arrows, which tells you cyclists may use the whole lane and you need to pass with room.
Crosswalks, stop lines and where exactly you stop
A crosswalk exists whether or not it is painted; painted lines just make it visible. The stop line is the thick white bar before the crosswalk, and that is where you stop, not in the crosswalk and not past it. If there is no stop line but there is a crosswalk, you stop before the crosswalk. If there is neither, you stop where you can see the conflicting traffic.
Exam questions like to put a car stopped exactly on the crosswalk and ask what is wrong. The answer is almost always that the car has taken away the space pedestrians were given.
Turn lanes, arrows and the mistakes they catch
Painted arrows in a lane tell you what that lane is for, and the arrow applies to the whole lane, not to the last few metres before the intersection. If you are in a turn-only lane you must turn. If you have entered a lane marked for straight ahead and then decide to turn, the correct action is to continue and turn later, not to cut across.
Two-way left-turn lanes, marked with yellow arrows and often a set of two-way turn markings, are shared. You use them to begin and complete a left turn, not to travel in.
Edge lines and shoulders
A solid white edge line separates the travel lane from the shoulder. You cross it to pull over, and you do not use the shoulder as a lane to pass on the right, with narrow exceptions such as a vehicle turning left ahead. A solid yellow edge line on the left marks the edge of a divided highway's median.
How to practise markings
Cover a page of marking questions and describe each picture out loud before you look at the options: colour first, then line type, then what the road is doing. That order is the same one the question writer used, and after a few rounds it becomes automatic. Our marking items carry a source line naming the handbook or code section they were built from, so anything you want to check, you can check at the source.
RoadCite is an independent study tool and is not affiliated with any DMV or government agency. Marking conventions are broadly national, but a few details differ by state.