Saving Lives Together

Keeping left & overtaking

On single lane roads, you must drive as far to the left as practical (except motorcyclists). On multi-lane roads if the speed limit is 90km/h or more you must drive in the left lane. This same rule applies to any road where there is a ‘keep left unless overtaking’ sign.

On these roads you can only drive in the right hand lane if:

  • you’re turning right or making a U-turn;
  • you’re overtaking;
  • the left lane is a special purpose lane, e.g. bus lane, bicycle lane;
  • the left lane is a turning lane and you are going straight ahead;
  • you’re avoiding an obstruction;
  • the other lanes are congested with traffic.
Failing to keep left in a multi-lane road.$502

The information available on our website provides a simple interpretation of the law and is not intended to constitute legal advice. Full details of traffic offences and penalties are contained in the Road Traffic Code 2000.