Traffic behaviour, observation and hazard perception
What this domain tests
This domain assesses how you scan, use mirrors, and anticipate hazards while driving a C1E combination. Questions often present a developing situation and ask what the driver should notice first.
Mirrors and blind spots
- Use the mirrors in a regular sequence: left mirror, right mirror, interior or camera view where fitted.
- Check the blind spot beside and behind the trailer before changing lane; mirrors alone do not cover it.
- Before turning, check the trailer's swing and the area beside the trailer, especially where cyclists may be.
- Reversing requires a guide or a controlled stop-and-check procedure.
Following and scanning
- Look far ahead, not just at the vehicle in front. Scan for brake lights several vehicles ahead, junctions, and pedestrians near the kerb.
- Keep a larger gap when loaded; the combination needs more stopping distance.
- Do not tailgate. A loaded trailer can push the lorry forward in emergency braking.
- At junctions, check for cyclists and pedestrians who may pass on your left or right while you wait.
Vulnerable road users
Cyclists and pedestrians are hard to see beside a tall lorry. Before turning right, check the right mirror and blind spot twice. If a cyclist is alongside, wait. Do not rely on the cyclist to stop.
Worked example
You are waiting at a junction to turn left. A cyclist approaches from behind on your left as the light changes. Reasoned answer: check the left mirror and blind spot, let the cyclist clear the junction, and do not turn across their path. The trailer's length means the turn will take longer than a car's, so the cyclist may still be alongside when you start moving.
Traps that cost marks
- Checking mirrors once and assuming the blind spot is clear.
- Turning across a cyclist because you have right of way.
- Following too closely behind a large vehicle and losing forward visibility.
- Forgetting that the trailer blocks the view behind and beside you.
- Looking only at the vehicle immediately ahead instead of scanning the whole scene.