Traffic Signs, Signals and Road Markings
What this domain covers
The Traffic Signs, Signals and Road Markings domain tests whether you can read the road quickly and accurately. Questions ask you to identify sign meanings from shape, colour and symbol, interpret signal phases, and apply road-marking rules in context. You must know what action a sign or marking requires, not just its label.
Sign families
- Circles give orders: red circles usually prohibit (no entry, speed limit); blue circles usually mandate (turn left, minimum speed).
- Triangles warn of hazards ahead (bend, junction, pedestrian crossing).
- Rectangles inform or guide (direction, parking, services).
- Octagon is reserved for STOP; an inverted triangle means GIVE WAY.
- Supplementary plates narrow a sign's meaning by time, exception or vehicle type.
Signals
A steady red means stop behind the stop line. Steady amber means stop unless you are too close to stop safely. Green means proceed if the way is clear. Flashing amber at a pedestrian crossing means give way to pedestrians and proceed only when safe. Green arrows protect the indicated movement; other movements may still be stopped.
Road markings
- Solid white centre line: do not cross except to enter premises or pass a stationary obstruction where permitted.
- Broken white line: cross only when safe.
- Double solid lines: neither side may cross.
- Yellow kerb lines usually restrict waiting or loading; read nearby plates.
- Stop lines, give-way lines, hatched areas and chevrons carry specific prohibitions.
Worked example
You approach a red circle containing a white horizontal bar. What does it mean, and what must you do? It is a NO ENTRY sign: do not proceed; find another route. Reasoning: red circle = prohibition; white bar = no entry. It is not a STOP sign (octagon) and not a warning. If you see a blue circle with a white arrow, that is a mandatory direction, not a prohibition. The exam often tests this shape-and-colour distinction.
Traps that cost marks
- Confusing the inverted-triangle GIVE WAY sign with a warning triangle.
- Treating flashing amber as a stop signal, or steady amber as a signal to speed up.
- Assuming all yellow lines mean the same restriction; loading rules differ from parking rules.
- Ignoring supplementary plates that limit a sign to certain times or vehicles.
- Reading only the symbol and missing the shape/colour, which changes legal force.
Key points
- Red circles prohibit; blue circles mandate.
- Triangles warn; rectangles inform.
- Octagon = stop; inverted triangle = give way.
- Steady amber means stop if safe; flashing amber means give way to pedestrians.
- Solid lines restrict crossing; broken lines allow crossing when safe.
- Supplementary plates change a sign's scope.