How to exit from a motorway or a Dual Carriageway ? Dual carriageway/motorway driving lesson

How to exit from a motorway or a Dual Carriageway ?
Signs for junctions on the motorway:
On the approach to a junction, direction signs are usually located1 mile and 1/2 mile in advance, and at the exit point.
Where junctions are close together, these distances may be reduced,normally to 2/3mile and 1/3 mile respectively.
The signs may be mounted at the side of the road or overhead.
Countdown markers:
Countdown markers indicate the distance to the start of the deceleration lane. Each bar represents about 100 yards
Road marking:
Some junction layouts may bemore complex and designed toallow a heavier flow of traffic toleave the motorway.
A traffic lanemay be shared by traffic bothcontinuing ahead and leaving themotorway.
This shared lane hasa deceleration lane separatedfrom a lane drop by chevron roadmarkings.
In the example, theleft-hand lane is used for the exitslip road only, the centre lane isthe shared lane, and theright-hand lane is for aheadtraffic only.
A sign mounted at theside of the motorway shows theroad layout. An overhead signshows the appropriate lanes to use for each destination.