Hope that poor bus driver recovers as well as he can considering how bad he’s been hurt…I know some bus drivers get heckled on here but no one deserves that on the road.
And as for those poor seriously injured passengers going about their business unaware of events unfolding and those poor souls who had to work or even had to witness it too, so many people affected.
Not sure how the trailer weren’t suitable I suppose it should’ve been transported in a bulk tipper, should it■■? 
As for that corner, travelled round that many a time with a wide load long reach or tracked dumper in and out of East Mersea Road (correct road name - BBC Look East researchers) for many clients in that area. It’s a tight and fast road and that particular corner was bloody dangerous…if you wasn’t from or even if you was from the area it narrows and has caught many a person unaware…only by fluke there hasn’t been more incidents there in the past!
If you swung ever so slightly wide on the line, you could bet someone would accidentally or even on purpose cut the corner. I’ve witnessed so many near misses and even involved in near misses myself there. And I’m sure a lot of the caravan hauliers in and out of there would say the same story of that main access route.
Strange about the strap comment you can use straps on semi-lows to hold things down with for a relevant weight. So not sure of that relevance as long as you know what you’re trying to hold down and they’re strong enough to secure them. Could’ve been holding down ancillary lightweight equipment underneath the roller, who knows…They’re two up from relying on nothing or a curtain to hold a load compared to other shed loads in recent history on the road.
I hope he did have chains on for his sake, but that won’t be a defence for the law of just putting some on. Need the right amount and you should have redundancy in all the chains used, should one go to keep that load in place and everyone safe.
All of us involved in moving stuff like that are gonna have our collars felt for a while round here, perhaps it’ll smarten up all of our attitudes in the industry in general and hopefully make it safer for other road users.
And if he didn’t have on…I can’t believe it’d made it all the way from Suffolk in one piece. They’re asking for any dashcam footage of his whole likely route to East Mersea…never heard of that before!! 
If that’s the case, I don’t think he’ll be shown any leniency and rightfully so for endangering everyone including himself. However this will only established by the courts…and only the accident investigators will know this today.
Feel so sad for all those involved 
Really hope they get better soon and police establish what actually happened.
C
