oooh there's nothing like starting a discussion
"who's fault are motorway crashes?"
speeders, slowers, drinkers, phone-users, illegals and learners, youngsters, oldsters, mentalists, off-roader-ists, foreign drivers, motorcyclists and lorry drivers....have i got it all covered?
but yeah...i take your point PtG...have often sat there for 2 hours in the 8 mile tailbacks at rush hour on the M62 West bound at J26, thinking "how come people crash so much on motorways, if they're so safe..well, that's half of the problem, ain't it...being so safe, puts you into a false sense of security...and if you're not "driving in a safe straight line" (have you driven the M62 much?

...)...you're stuck in massive tailbacks(usually caused by...absolutely NOTHING!
once drive all the way from chatham, kent 250 miles north up the A1, left to join M62 westbound for a few miles, left to join M606 to bradford, and used the 3/4 laned RA, serving 6 exits (mine being 5th) drove round quite happily changing lanes as i went, even managing to keep speed up...came to final lane change, police car pulled out in front, ok, followed by old doddery geezer in a little peugeot 206, he stayed in first lane, not indicating, and looked to be carrying straight on, but right at the last minute decided he wanted the same junction as me, and decided to fight me for it...i won, i T-Boned him!...he'd had his eye on the copper, but forgot he was only going round one exit, and so he'd dived back in at the last minute, without any indication...
luckily, a lorry driver and his mate had been following on, and saw everything. They stopped, and the old bloke was about to try his "bloody women drivers shouldn't be on the road" routine, when they stopped him, and put him right on a few things...like lack of indication, notice of intention, observation, etc, and sent him reeling down the road...his passenger side door and wing were all stove in, and his lights...my car (plastic citroen XM) was merely shaken, but not stirred, and only had a teeny bit of denting, and the light had popped out of it's casing, just had to be popped back in..job's a good-un, which left him and his wife arguing on the hard shoulder as i drove off, after exchanging details, and him conceeding blame, thanks to the willingness of these guys to stop, and help...
never did go as far as insurance, so, i didn't manage to get in touch with these guys again...
but anyway...phew..was a bit hairy at 70mph!