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Rules of the Road

RSA handbook · 292 pages · 271 embedded images

Motorways and tunnels

Page 152

When in a queue, your instinct may be to get closer to the vehicle in front to protect your position. Please remember that you must leave enough room in front of you to allow you to stop safely.

Signalling

Once on a motorway, you must make a signal before every move. For example, moving from Lane 3 to Lane 1 involves two separate stages.

In stage one you signal once to move from Lane 3 to Lane 2.

In stage two you signal again to move from Lane 2 to Lane 1.

Due to the higher speeds on a motorway, motorists must always signal

their intentions in good time.

An indicator is not a right of way.

Before you start to manoeuvre, you must exercise due care and attention with particular heed to other users of the road, prevailing road conditions and how your driving will impact other road users.

Checking traffic around you

Check your mirrors regularly, as you need to have a constant picture in your mind of what’s going on all around you. Be very aware of your vehicle’s blind spots as well.

As a driver, you must be able to stop within a distance that you can see to be clear and you must drive having due regard to other users of the road. Therefore you should avoid staying in other drivers’ blind spots. Keep your eyes moving – avoid looking only at the vehicle immediately ahead. Instead, scan up the queue. Use your view to drive smoothly and avoid unnecessary braking. If you notice traffic slowing down sharply, use your hazard warning lights to warn traffic behind you.

Before changing lane, remember ‘mirror, signal, mirror, manoeuvre’. Remember that traffic may be coming from behind you at speed. Checking your mirrors at least twice helps you judge the speed of their approach speed and will help you to see vehicles travelling in your blind spots.

Avoid causing another driver to brake or change lane to accommodate you while you are on the motorway (aside from joining it). Learn to read the traffic around you. A vehicle in your mirror on the motorway with its right indicator flashing is trying to tell you that it’s catching up on you and intends to overtake your vehicle.

Related practice questions

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Extracted from the RSA Rules of the Road, Revision 9, May 2026. Source PDF · reuse permission unconfirmed.