Yesterday I was sitting on a wall by a bus stop in Harrogate. The road is a 3-lane one-way route passing the taxi rank by the Victoria shopping centre on one side with a large bus terminal, car park and railway station on t'other. It's a very busy stretch with a 30 limit. I turned my head at the sound of a car horn to my right, 75 metres down the road, and saw the moment of impact as the offside front of an 08 reg black Chrysler 4x4 struck a cyclist from behind and sent him and his bike through the air. The cyclist was helped up by several shoppers: he was obviously cut, bruised and shaken and the bike was bent. When I walked nearer, from across the road I could see hear a man saying that they were an off-duty police officer and watched him ask various people what had happened and writing it down. Unfortunately I could not get nearer as the continual traffic made it impossible to cross at that point. What I can't understand is how the driver had time to sound his horn but apparently did not have time to brake. Should I have made more effort to add my own version to that of other witnesses? I didn't actually see what had happened before the impact.