Understand your frustration ziggy and cant say i've never done it myself but yeah, far too close 
You was far too close, simples.
Dom
Although not mandatory the HGV driver is an arse for not moving into a lane that appeared to be clear and allowing the Civic in IMO
Although the Civic driver equally abviously has a death wish and no idea on how to drive :bang:
It's not the HGV driver's job to move out of the way
It is strongly recommend to if the adjacent lane is clear. It's also courtesy to other road users, something few seem to have these days
I agree it's Civic drivers fault, but lorry driver could have easily avoided it if they'd moved into the lane to their right. It's not exactly difficult to do, and I know I'm not the only one to do it to ease the entrance of joining traffic.
Links?
I'm not a driving instructor, but ask most and they'll advise this. Not sure what you're wanting links to, you can't link to verbal recommendation or common sense, and I'm not about to waste my time looking up driver instructor tuition docs etc, search for links yourself if you're that bothered.
Anticipation and common sense take a hold here, I can't help but feel the hgv driver shares some of the blame as it seems he made no effort at all to slow and avoid the collision, he could also see the car approaching and it was a busy slip road so should have anticipated that moving over if safe was was the appropriate thing to do, finally how fricking close was he to the truck in front!? Clearly he was dangerously streamlining far to close and didn't want to give up a bigger gap to the car.
Yes clearly the car driver made some pretty big mistakes and misjudged things but this wasn't helped by the belligerent truck driver not giving an inch and leading to an accident he could have actually avoided if he'd wanted to
Advice given to new drivers is that "if you can assist those joining the motorway by moving over to an adjacent lane safely then you should do so
I would estimate that lorry is less than 3 car lengths from the lorry in front maybe at most 12metres, stopping distance at 56mph for a 40ton truck is something like 50-60metres so is an accident waiting to happen anyway
"this dramatic footage was released by smartwitness and meant that the lorry driver was cleared of all blame for the incident"
We've seen what you call a gap Ziggy....![]()
the lorry did have his 2sec, i was more like 1 to 3, at point of problem i was at 1
Ziggy
Maybe this is where you're going wrong....I'd guess that that truck has around a 0.5 - 0.75 second gap and you think it's 2 seconds....![]()