How to Move to the right lane on Dual Carriageways?
Normally speaking, on a dual carriageway, you should stay in the left lane or safety lane as it is called. The right lane is for overtaking.
To overtake on a dual carriageway, we need to first of all check the road ahead for clearance in the right hand lane. We need to check behind us in the interior and right door mirrors to see how close traffic is behind us.
To move into the right lane at a speed of between 30-40 mph. there needs to be a gap of at least 3 car lengths in front of you and behind you.
Before moving over, check interior mirror to give a real image of what is behind, then the right door mirror and finally a quick glance in your front right window to check the little blind spot area before signalling and gradually moving over to the right lane. That blind spot is crucial to check. The right door mirror will not pick up a vehicle that is almost alongside you on the right, and can be very dangerous if not checked before moving over to the right.
To move back to the safety lane, check in the same way as moving out to the right, but check the left side instead of the right.