Leaving a major trunk road/expressway
The main features of an exit from a major trunk road/expressway at a multi-level junction are shown. Other junctions may have some of these features.
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Information about the junction is usually given at least 1/2 km in advance to give you time to move to the left-hand lane. Countdown markers may also be used to indicate the distance in hundreds of metres to the start of the deceleration lane. A direction sign and road marking mark the beginning of the deceleration lane which leads to the exit slip road. The deceleration lane gives you time and space to begin to reduce your speed. The slip road leads you to a junction with an ordinary road or to another dual carriageway. Some slip roads may have sharp bends which can only be taken safely by reducing speed.

Joining a major trunk road/expressway
The slip road leads into an acceleration lane. Watch the Traffic on the main road and adjust your speed so that you can join the nearest lane in a suitable gap. After joining the lane, stay in the lane long enough to become accustomed to the speed of the Traffic before trying to change lane.
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These are informatory merging signs used at junctions on expressways.

On wide busy roads, and particularly on expressways and other trunk roads, signs may be placed on gantries above the road. On expressways the colour of signs may be green instead of blue.
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Arrows below the destination mean 'Select your destination and get in lane'. Do so in good time. The sign above normally means the main road is reduced from four to three lanes.
Road Sign
Where there is no loss of lane beyond the junction the panel containing the sloping arrow indicates the side road destinations while the panel containing the downward facing arrows gives destinations on the main road. Take the left lane if you are leaving the main road