I would also add to the above that all a flashing indicator means is that:-
a) There's bulb in there.
b) It works!
And yet you object when I call those drivers unpredictable?Because they are predictable based on the guidance at the time they learnt. How many drivers do you know who change what they do each year based on changes in the latest edition? HC is only guidance and indicating doesn't fall under any road law as far as I'm aware.
You can't look at the latest HC issued in 2019 and reasonably predict every driver will follow that guidance.
Which is why i go a mile + out of my way going to work on the bike , it avoids the roundabout of death outside our workplace.Its bad enough in a vehicle /car let alone a bikeYou need eyes in the back and side of your head on most multi lane roundabouts, even in a car. Total lack of discipline or IDGAF. Sister has had the rear corner of her car squashed recently by a someone swapping lanes and not looking.
...telling them to make snap judgements about when and when not to indicate ...
I once asked someone who was driving why they weren't signalling on roundabouts, they relied 'who to'......sighMy new commute is do-able entirely on cycle paths. I have to go past a couple of roundabouts on my journey and i've noticed that more times than not, cars just don't bother signalling to come off - making it dicey for me to cross from one cycle path to the next. Ironically, it would be quicker and safer if I went on the road at the roundabouts. My son has the same issue getting to school as a pedestrian sround a roundabout. People never signal so all of a sudden a car that might be going straignt on is actually coming off. Why can't people be bothered to use their damn indicators.
It's why a few roundabouts are now being planted with gadgets to obscure sight lines. Forces them to signal as they can't tell if anyone is there.
I think blocking the sight line is actually to try to force people to slow down, such as the northbound approach to the western A45/A509 junction near Wellingborough.That sounds somewhat perverse (and potentially dangerous). Source ??