Road Rules 2014

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 1 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.

Note 1.

Intersection, marked lane, traffic and traffic island are defined in the Dictionary.

Note 2.

Rule 322(3) and (4) deal with the meaning of a traffic sign at a place.