One day, all, non essential vehicle traffic will be gone from the streets of cities like D.C., NYC, Philadelphia, Chicago and other metro areas with five figure population densities. As I understand it, the entire European Union plans to be (urban) car free by 2050. In America it will not take longer than that, but the fight will be bloodier. America's baby boomers are just as stubborn in their car addiction as they believe the cyclist community to be in their car free advocacy. At least the cyclist community does not have the destruction of the biome as a consequence of its existence.
H