• This point worries me, as it seems to imply that these sharp turns are the most dangerous ones, and i'm not convinced.

    I don't know exactly how this works, either, Tom, but there have been a few crashes in which cyclists have been caught out by this type of manoeuvre. I think it may be that because of their assumption that the lorry was going to go straight ahead, they got closer to it. You'd have to ask an expert, though.

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