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"we heavily biased the network against trains and now it's just saying the optimal car consists of several metal struts connecting just two thinned out wheels that the driver sits on top of and propels themselves using pedals. It was busy redesigning intersections to have clear safe lanes for these bi-cycle 'cars' with plenty of trees / room for pedestrians when we pulled the plug..."
Even in bike racing the optimal form ends being to become a train. A peloton is just a train made up of bikes.
And then imagine if instead of wheels a bicycle was on a track with even greater reduced rolling resistance than skinny overinflated tires and didn't require lumbar strength for balance.
Damn now I want pedal powered train