On the A1 incident - it took close to an hour to pass the spot and the accident scene was, by then being cleared up. There was a barrier of bushes, I think, at that point so no likelihood of anything coming across and, basically, the cars in front of me were slowing down to see what was going on. This isn't the first time I've come across this - happens in the UK regularly. I also had motor claims to deal with caused by the same problem - people just have to look!