too clever by eiπ/(cos(π)-sin(π/2))
I'll bet the sadist that set them up made the full sequence last an hour.
I have to say, nobody seems to be paying much attention to the colour of the lights. A victory for common sense.
I'm going up to Leeds (why?) on Saturday & then on to Blackpool. I guess I'd better take the motorway & avoid this notorious bottleneck!
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