“[...] most American cities have been designed or redesigned principally around the assumption of universal automotive use, resulting in obligatory car ownership, typically one per adult—starting at age sixteen. In these cities, and in most of our nation, the car is no longer an instrument of freedom, but rather a bulky, expensive, and dangerous prosthetic device, a prerequisite to viable citizenship.” Urban Planning Book:Walkable City: How Downtown Can Save America, One Step at a Time Source: Walkable City: How Downtown Can Save America, One Step at a Time