http://en.m.wikipedia.org/wiki/Garden_city_movement http://en.m.wikipedia.org/wiki/Ville_Radieuse
http://en.m.wikipedia.org/wiki/Garden_city_movement http://en.m.wikipedia.org/wiki/Ville_Radieuse
Why not build taller buildings? Crammed together on a grid, provide underground walking areas?
There's certainly no shortage of cars there https://www.google.com/maps/place/Bras%C3%ADlia+-+Federal+Di...
Historically, cities like Brasilia were designed around the logic of the car. For example, most roadway intersections feature over and underpasses, cars are completely segregated from pedestrians. By most accounts, it doesn't work so well.
But yeah, this kind of design doesn't seem to work well no matter the density of the buildings. Cities really need to work around pedestrians.