What constitutes an undertaking

[Semple]

What happens if you have to pull back into lane 2 after entering lane 1 because you want to overtake something in lane 1? After already joining lane 1 from 2, i.e.lane 2-1-2 (because of traffic in lane 1, not just to undertake)?

As long as your sensible about it, then i can't see why it would be an issue.

Obviously if you're driving moronically and jump into lane 1 to immediately pass something in the middle, and then jump out right infront of them again to pass traffic on the inside, is likely to be classed as reckless/dangerous driving.

 

[Joe T]

I have given up worrying about idiots with no lane control. I don't race in and out of traffic, but I also don't sit there wondering if they will one day pull over as there is no car for 10 miles. Pull in, slide past and gone.

Ditto.