Road position and lane discipline
Road position means where you place the car across the width of the road. A good position helps you see further ahead, shows other road users what you plan to do and keeps you clear of hazards at the edges.
Your position changes all the time as the road changes. Examiners watch it throughout the test, not only at junctions, so it is worth practising until it feels natural.
By the end of this topic you can
- You can keep a steady normal driving position on the left without drifting or hugging the kerb.
- You can position correctly for left turns, right turns and roundabouts.
- You can choose a safe position on bends, hills and narrow roads.
- You can pick the right lane early on multi-lane roads and stay in it.
- You can move out to pass parked cars and return to your normal position smoothly.
What you need to know and understand
- Keep to the left unless signs or markings tell you otherwise. You move out to overtake, turn right or pass parked vehicles or pedestrians in the road (Highway Code rule 160).
- Keep well to the left on right-hand bends. This improves your view and keeps you away from oncoming traffic (rule 160).
- Before turning right, take up a position just left of the middle of the road, or in a space marked for right-turning traffic (rule 179).
- When turning left, keep as close to the left as is safe and practicable (rule 183), and do not swing out to the right first.
- On a two-lane dual carriageway, stay in the left lane and use the right lane only to overtake or turn right (rule 137).
- On a three-lane single carriageway with no priority markings, the middle lane is only for overtaking or turning right, and you should not use the right-hand lane (rule 135).
- In slow-moving queues, do not change lanes to the left to overtake (rule 151).
Your everyday position on the road
On a normal road your car should sit comfortably within the left half of the carriageway, roughly in the middle of your side. Too close to the kerb and you risk hitting drains, debris and cyclists, and you may have to swerve. Too close to the centre line and you put yourself near oncoming traffic.
Look well ahead, not at the bonnet. Your hands follow your eyes, so looking far down the road keeps the car straight. If the road has lane markings, keep between them (rule 131).
Getting into position for a turn
Plan your position early using the mirrors, signal, position, speed, look routine. A late or wrong position confuses other road users even if your signal is correct.
- Turning left: stay near the left, check your left mirror for cyclists, and do not swing right before the turn.
- Turning right: move to just left of the centre line, or into the right-turn lane or box marked on the road.
- Roundabouts: follow the lane arrows and signs. Without them, left lane for left exits and right lane for exits to the right (rule 186).
- One-way streets: left lane to go left, right lane to go right, and the most suitable lane to go ahead. Traffic may pass you on both sides (rule 143).
Bends, hills and narrow streets
On a right-hand bend, keep well to the left so you can see round it sooner and stay clear of anything cutting the corner. On a left-hand bend, keep your normal position and do not drift over the centre line.
Where parked cars line both sides, you may need to drive nearer the middle. Slow down, leave room for a car door opening or a child stepping out, and be ready to give way to oncoming traffic. Near the brow of a hill, keep left because you cannot see what is coming.
Lane discipline on bigger roads
Choose your lane from the signs and arrows as early as you can, then stay in it. Changing lane means mirrors, a quick sideways glance if needed, a signal, and only moving when it will not force anyone to change speed or direction (rule 133).
Once you have passed slower traffic on a dual carriageway, move back to the left when it is safe. Sitting in the right lane for no reason holds others up and can tempt them into risky overtakes.
Common mistakes
- Drifting towards the kerb when nervous. Fix your eyes further down the road and the car will follow.
- Swinging out to the right before a left turn. Keep to the left and let the steering do the work.
- Leaving the lane choice too late at roundabouts and junctions. Read the signs early and get in lane before you need to.
- Cutting the corner on right turns. Drive forward until you reach the point of turn, then steer.
- Staying in the right lane of a dual carriageway after overtaking. Move back left when it is safe.
Test yourself: Road position and lane discipline
Answer each question, then read the explanation. Questions come in a random order each time.
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Sources: Highway Code rules 131, 133, 135, 137, 143, 151 and 160 (gov.uk); Highway Code rules 179, 183 and 186 (gov.uk); DVSA car and light van driving syllabus, Unit 3 (gov.uk). Independent guide, not affiliated with any licensing agency. Always check the latest official rules with the DVSA.