Ach, I thought you could see the speed I was going on that video. Turns out I can see it on the Contour Storyteller software that I have at home, but when it's uploaded, you can only see the wee yellow line.
So, I'm coming down Main St at 20, I slow down to 16 when I am joining the roundabout and then I'm @ 14mph when I'm midway across the roundabout and have to hammer on the brakes and turn sharply left to avoid the car.
I wasn't hidden in any way from the blue car as I was approaching the roundabout. There was a clean line of sight from the blue car to me at all times. The blue car can clearly see me before I cross the zebra crossing as I'm approaching the roundabout. As I cross the white line to join the roundabout @ 16mph, I'm leaning right to make it as clear as I possibly can that I'm not going left. This is obvious from the video, considering it is mounted on my bike, not my helmet.
The cars turning right were stationary for no apparent reason. They were initially waiting for a small white van to cross, then they didn't move. Them not moving is not a valid reason to force me to be going less than 16mph. I'm also still quite surprised that you think 16mph is "a bit hot"; I mean, I know some cyclists go slowly, but 16mph is not too fast to go round a roundabout, surely? If it is, what's the speed limit?
While I appreciate that the issue would have been avoided had I been going slower, that would merely have been on that occasion; going slower on other occasions would merely mean that cars overtake me and turn left while I'm going straight on, knocking me off my bike. I've got a video of that happening if you want to see it.
The bottom line in this incident is that the driver of the blue car just completely failed to see me, or pay attention to me. A week previously to this, the exact same thing happened up to the point that the car has fully crossed the white line, but then stopped when she realised I was going straight on, and put her hand up immediately to apologise. No problem - she stopped with time for me to react, and I went round the front of her without having to change course. The blue car drove dangerously, IMHO, and I'd take it to the police if only for the fact that they won't do anything despite it being clear dangerous driving.
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The moral (sp?) of this story is, don't trust cars and their drivers, always assume they are going to do something daft because if they *do* do something daft, you'll be the one who comes out worse. I always watch out for drivers doing something completely unexpected, and while this doesn't mean I will never be in an accident, it helps me to avoid some of them.
I suspect we all know this, mind you.