The environmental movement of the 21st century created a new path to sustainability for cities, the path of wilderness.
If you are a pedestrian, you are not mechanical enough to be of priority to traffic engineers.
The contempt of motorists for pedestrians is so ironic, because no matter how many cars they have, they are also pedestrians, biologically. Unless they fly to the doors of their cars.
A city without some form of a transect is like a country without a constitution; It is a breeding ground for spatial anarchy.
If modern environmentalism continue on the current path of wilding the city, future urban dwellers might as well live in tree houses, for all the difference it will make.
Debates on housing policy have denigrated into shouting matches merely about ethics, values and rights. Polarised debates where socialism is regarded glorious and capitalism disastrous.
In postcolonial Africa, single dwelling housing is the biggest perpetrator of urban segregation.