Road Signs, Signals and Markings
The Road Signs, Signals and Markings domain checks whether you can read Dominica's road environment at a glance, long before you reach the hazard. Dominica follows the British-influenced Caribbean signing pattern, so the shape of a sign tells you the type of message before you read a word: circles give orders, triangles warn, rectangles inform. Expect questions that show a symbol and ask what you must do, and questions that ask you to choose the correct line or lane for a manoeuvre.
Shape and colour first
- Red ring, white background: prohibition. No entry is a red disc with a white horizontal bar; an empty red ring bans all vehicles.
- Blue circle: a mandatory instruction, such as turn left ahead or keep left of the bollard.
- Red triangle, white centre: warning of a hazard ahead, such as bends, steep descent, slippery road, school or livestock.
- Octagon: STOP. A full stop at the line every time, even when the road looks clear.
- Inverted triangle: GIVE WAY. Slow, look, and stop only if traffic is coming.
- Rectangles: information and direction signs for places, parking, hospitals and ferries.
Lines and markings
A solid white centre line must not be crossed to overtake. A broken white line may be crossed only when you can see the road is clear and can finish the move. Double yellow lines at the kerb mean no waiting or parking at any time. Zebra crossings, with broad white stripes and no signal, give pedestrians priority once they step onto the stripes. Yellow box markings must not be entered unless your exit is clear.
Worked example
A question shows a red triangle containing a car with wavy skid marks and asks what you should do. The shape is a warning triangle, so the sign orders nothing; it warns. The symbol means slippery road. The correct answer is to reduce speed smoothly, avoid sudden braking or steering, and increase the gap to the vehicle in front. A distractor reading 'no entry, slippery road' fails because only a red ring makes a sign prohibitory.
Traps
Reading the symbol but ignoring the shape; rolling through a stop line or stopping needlessly at a give-way line; assuming a broken centre line makes overtaking always safe; and forgetting that a police officer's signals override every sign, signal and marking on the road.