i don't understand the undertaking laws can anyone clarify?
if im in traffic on the motorway and the inside lane is moving more freely than the middle or outside lane then should i be able to drive past them on the left or do i have to match their speed even if they could move to the inside themselves and speed up?
To me that's simply passing on the left and keeping up with the flow of traffic, surely not a problem.
Undertaking would be deliberately going out of your way to move over to the left and pass cars, then moving back over which is a problem.