Road markings work together with signs to guide and regulate traffic. Unlike signs, markings are painted directly on the road surface and must be understood without any accompanying text.
Centre Lines
A broken white line down the centre means you may overtake when safe. A solid white line means no overtaking or crossing. A double solid line is the strictest marking — never cross it. A solid line on your side of a double line means you cannot cross; if the solid line is on the far side, the vehicle on that side cannot cross but you may, with care.
Stop and Give-Way Lines
A solid white line across your lane at a junction is a stop line — stop here completely. A broken white line is a give-way line — yield to crossing traffic.
Other Markings
Yellow box junctions (yellow grid) mean do not enter unless your exit is clear. Hatched areas (diagonal lines) separate traffic flows — do not drive on them. Arrows in lanes indicate the direction you must follow from that lane.
Exam tip: Yellow road markings are temporary (roadworks). White markings are permanent.