Here's the single most useful motorway habit, and it makes everything else easier: keep to the left lane unless you're actively overtaking. The left lane isn't the "slow lane" — it's the driving lane. The others are just for passing.
Lanes on a motorway aren't fast, medium and slow. They're the driving lane and the overtaking lanes. You move out to overtake, and as soon as you're safely past, you come back to the left. You overtake on the right — you don't undertake on the left.
When you keep left, the whole motorway flows. Traffic that wants to go faster can pass cleanly, nobody gets boxed in, and you're in the calmest, least pressured spot on the road.
The bits that matter
- Keep to the left lane unless you're overtaking — then return left once past.
- Lanes aren't speed tiers; the middle and right lanes are for passing only.
- Overtake on the right; don't undertake on the left.
Memory anchor
Left is home; you only leave it to pass
Picture the left lane as home and the other lanes as trips out. You leave home to overtake someone, then you come straight back. Sitting in the middle lane is like standing in your neighbour's garden for no reason — you don't live there.
Out on the road
The empty road ahead
You've just overtaken a lorry. The road ahead is clear and the left lane is empty. You check your mirror, signal, and move back to the left straight away. Behind you, faster traffic flows past without anyone bunching up. That's lane discipline doing its quiet job.
The mistake everyone makes
Camping in the middle lane
Middle-lane hogging — sitting in the middle with an empty left lane beside you — is both a fault and the cause of half the motorway's frustration. It's actually an offence. The rule never changes: overtake, then move back left. The middle lane is a corridor, not a room.