Traffic Signals and Road Positioning
Position early, then hold it
Good positioning means being in the right place, in the right lane, before the decision point. Use the routine Mirrors – Signal – Manoeuvre: check what is behind and beside you, signal in good time, then change position or speed. Cancel the signal afterwards - a signal left on misleads everyone.
Turning left: keep close to the left edge of your lane and do not swing out. Turning right: move towards the centre line without crossing it, and give way to oncoming traffic before turning. On a one-way street, position towards the right-hand edge. In every turn, do not cut the corner: steer so that you enter the new road in its correct left-hand lane.
At signals
Stop at the stop line, not on the pedestrian crossing. If your lane has a filter arrow, obey the arrow in your lane - do not follow the arrow of the lane next to you. If you are turning and the light changes, complete the turn only when it is safe and clear.
Roundabouts
Approach in the correct lane for your exit, give way to circulating traffic, keep left while on the roundabout, and signal left to leave. Never change lanes on a roundabout without checking your blind spot.
Traps
Questions that assume a green arrow protects you from all other traffic; questions about drifting across lane lines on a bend; and questions where a driver signals after braking or after starting the turn.
Worked example
On a two-lane road in each direction, the left lane serves left turns and straight ahead; the right lane is for right turns and overtaking. Join the correct lane well before the junction, not at the last moment. Rule of thumb: mirrors, signal, manoeuvre - always in that order.