109What is a roundabout

109 What is a roundabout A roundabout is an intersection: (a) with either: (i) one or more marked lanes, all of which are for the use of vehicles travelling in the same direction around a central traffic island; or (ii) room for one or more lines of traffic travelling in the same direction around a central traffic island; and (b) with or without a roundabout sign at each entrance. 1 Intersection, marked lane, traffic and traffic island are defined in the 2 Rule 322(3) and (4) deal with the meaning of a traffic sign at a place. Roundabout sign 110 Meaning of halfway around a roundabout A driver leaves a roundabout halfway around the roundabout if the driver leaves the roundabout on a road that is straight ahead, or substantially straight ahead, from the road on which the driver enters the roundabout.