Correct answer
To reduce speed when leaving the motorway.
Deceleration lanes found on fast roads such as dual carriageways or motorways are used to leave one road and join another adjoining road through a gradual reduction in speed. To leave the road and enter the deceleration lane, we must first signal our intention to change lanes and then follow the lane's own signage.
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To reduce speed when leaving the motorway.
For slow vehicles to travel along it.
To overtake on the right.
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