">Nothing of value is lost if you can get the same job done with trains underground and buses above." I would argue that seeing day light is a thing of value.

">Nothing of value is lost if you can get the same job done with trains underground and buses above." I would argue that seeing day light is a thing of value. Also the ability to look out a window and see life is also much more interesting than staring out into dark lifeless subway tunnels. Berlin and Amssterdam both have trams and neither seems to have impinged on space for bicycles.