A46 Bath to Warminster, there’s one hell of a rut just dying to throw you down the hillside
I was just wondering how many accidents these are causing between trucks. They don’t have throw a wagon sideways and if another wagon is passing at the wrong time… 
albion1971:
If you think it feels bad in a truck try a motorbike!
Changing lanes on motorways is where I find it worst on the bike
many years ago I was given a lift in a company wagon (B.I.P.) from maryport to streetley . I had never been in a wagon before and due to the elevated sitting position I could see the two grooves in the tarmac ,anyway I mentioned them to the driver and asked if they were a problem ? his response was to release his grip on the wheel and say "only if you want to get out " the wagon carried on its path just following the grooves . I was amazed 
I saw an article or a diagram somewhere, and apparently where it happens the whole underlying foundations are not strong enough, so even if the tarmac layer is resurfaced, after a while the ruts will re appear as the section of the foundations underneath the ruts sink deeper. Only solution is to rebuild completely from bare soil.
The hard shoulder on the M6 Southbound J8 has “tram lines” now. All that money spent on the managed motorway a short time ago (and still going) and it’s already wearing out. Surely the HA can claim against the contractors or architect?
I remember on the M18 years ago they just moved all the white lines left a bit so you straddled the ruts instead of driving in them
Years ago when I was driving a wagon & drag (caravan-style, not A-frame) for Westermanns, I had a trailer that had a fractionally narrower track than the prime-mover, so in the ‘tram-lines’ (as we used to call the ruts) the trailers was always searching, searching… Then on one trip, someone else had loaded the lorry for me and put all the weight in the trailer before sealing it, which made the situation ten times worse. Crossing Belgium was a nightmare because they had a lot of rutted motorways then. But when I got into Poland I could scarcely exceed 60 kph on the (then) hopelessly neglected main roads without risk of capsizing. Boy, was I glad to get that trailer unloaded in Rodomsko! Robert 
The E80, to the north of Sofia, was more like a ploughed field than a road last time I was in it, could hardly see where I was going I was getting shaken about so much!