Dear Boris, Enough is enough!

I agree about an HGV ban. Although nice (in some ways), I cannot see that being considered a viable option by the gov't. It would hurt the (already ailing) construction biz, too, I'd think (in addition to the stuff you mentioned).

Training sounds like a great idea. Hell, why not also mandate it for cyclists, too? I know there are training programs out there for cyclists, but maybe making them free (and mandatory) would help. Or not, because then you'd have to enforce it. Training for drivers makes sense. And maybe a lifetime lorry-driving ban for anyone caught driving one who isn't quaified/certificated? Maybe a bit draconian, though.

The only thing is how many training courses have you been on where you didn't want to go and your company said you had to? You see it like a bit of a jolly - don't pay attention - forget what was said.
I've seen a lot more HGV/PV's that have been retro fitted with large stickers on the left corner of doors, audible warnings and blind spot mirrors etc. I think this is a more cost effective/useful approach, Most drivers would say they already know how to drive, maybe these aids would make it easier to look out for cyclists - Does the government have an incentive to retro fit vehicles?