How does someone miss a flashing ambulance behind them on a straight road? And also miss clues from traffic pulling off the road ahead.
The ambulance was travelling at a fair rate, it's possible he couldn't see it. As for cars pulling off, there was only one, and he could have done that for a number of reasons, including wanting to change direction.
Blind spots. Every human eye has one, though it's also quite possible to miss anything at anytime due to sensory overload, amongst other things and to be fair, you have to ask the same question to the ambulance driver....How does someone miss a man on a bike, right in front of them and on a straight road?
It's big. It's yellow and green. It has retina piercing flashing blue lights on it. When they were in the design phase I imagine someone said "Everyone has blind spots, shouldn't we cater for them?" and they did their very best to do so. As I said it didn't suddenly materialise out of nowhere right behind him.
If you do repeated shoulder checks and, I'm assuming but this a whole different argument, not wearing headphones and miss an ambulance behind you for more than ooo let's say 25 yards, no let's go for 50 on the basis that if it's pulled out of a side road within the last 50 yards you would have seen it approaching the junction, then I really, really, really think you need to think about whether or not you should be on a bike on a road.
And the ambulance driver did miss the cyclist.