What amuses me about tram tracks is that, yesterday I had to do my road saftey test at work which crops up every few years and I got hit with the question about cyclists and being carefull with tram tracks, out of the four answers, one, was when there wet and another was, at all times, I answered at all times as I know any metal surface is dangerous when its wet, but tram tracks are more of a danger in themselves if you ride into them but the correct answer is, when there wet. Perhaps the high way code needs amending.
In a similar way even double yellow lines can be a danger if they are slightly raised, wet or icy and you get between them as they will take your wheels away from underneath you. I know from experience many years ago when it happened to me in a busy town center, directly opposite a crowd of people at a bus stop. I learnt my lesson well that day, keep away from double yellows.
