Cautious undertaking

[Dr Jekyll]

This morning I watched a Volvo estate in lane 1 come up behind a slow moving vehicle in lane 2. The Volvo hadn't moved left to pass and was presumably within his rights to pass on the inside, but before passing he slowed right down and sounded his horn, obviously worried that the lane 2 driver might wake up and pull left at any moment.

The interesting thing was that this Volvo extate was a fully marked ambulance with blue lights going, and the driver was obviously still wary about passing on the inside. I think I'll be even more cautious in these situations in future.

[R0G]

Situations like that need extreme care and the knowledge that the on being passed on the inside will not suddenly 'wake up' and pull left

If certain that they know you are there then alls well to pass

If they did then change lanes the responsibility is on them to ensure it is safe to do so

[robbyd]

I'd say it's advisable to have a 'plan B' when passing on the left as well; for example, on the M25 I'd not pass in L1 in the short sections where the hard shoulder disappears (common on the west side)

[kaf]

robbyd said:

I'd say it's advisable to have a 'plan B' when passing on the left as well

My preferred option as well.

[R0G]

robbyd said:

I'd say it's advisable to have a 'plan B' when passing on the left as well; for example, on the M25 I'd not pass in L1 in the short sections where the hard shoulder disappears (common on the west side)

Same here when using lane 1 of 4 on M1 north between J21 and J21A