109Meaning of roundabout

109 Meaning of roundabout roundabout means an intersection— (a) with either— (i) 1 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.