Roundabouts allow traffic from different roads to merge or cross without necessarily stopping.
Priority
Before you enter a roundabout, you normally give way to traffic approaching from your immediate right. However, you should keep moving if the way is clear.
In a few cases, traffic on the roundabout has to give way to traffic entering. Look out for ‘Give Way’ signs and road markings on the roundabout.
Some roundabouts have traffic lights (sometimes part-time) which determine priority.
Always use the MSM/PSL routine on approach.
Approaching a roundabout
Always look well ahead for the advance warning sign.
Especially at large or complex roundabouts this will give you a clear picture of the layout of roundabout, together with route directions. The sign will enable you to select the most suitable lane in which to approach the roundabout.
Watch out also for advance warnings of appropriate traffic lanes at the roundabout. These are often backed up by road markings, which usually include route numbers.
• Get into the correct lane in good time.
• Dont straddle lanes.
• Never change lanes at the last moment.
Where possible it is a good idea to look across the roundabout and identify the exit you are aiming to take. This will help you to plan the safest route through the roundabout.
Procedure
Adopt the following procedure, unless road markings or signs indicate otherwise.
Going left
• Indicate left on approach.
• Approach in the left hand lane.
• Keep to that lane throughout the roundabout.
• Maintain a left turn signal through the roundabout.
Going ahead
• No signal on approach.
• Approach in the left hand lane. If you cannot use the left hand lane because it is blocked, use the next lane to it.
• Keep to the selected lane throughout the roundabout.
• Check your mirrors, especially your near side one.
• Indicate left just after you have passed the junction before the one you intend to take.
Going right or full circle
• Indicate right on approach.
• Approach in the right hand lane.
• Keep to that lane and maintain the signal on the roundabout.
• Check your mirrors, especially your near side one.
• Indicate left just after you have passed the junction before the one you intend to take.
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