In Australia, the Law says -

1) keep to the left, unless there are multiple marked lanes.

2) On highways, freeways, keep to the left (lane) unless overtaking.

We do seem to have a lot of 'RLIs" (Right lane idiots)

I do note the hassle with joining slip lanes - I do often try in those places where I know entry lanes are coming up, to move over into the right lane (we have very few 3-laner dual carriageways as yet!) to make life easier for everybody - that's if there is very little traffic.


Recently, some sort of history was made with a motorist actually going to court to fight being booked for failing to comply with 2 above. Btw, that was not clearly stated in most states laws until recently anyway.