The point is that they worked to establish the norm that pedestrians must defer to cars on city streets, instead of cars deferring to pedestrians. This makes it

The point is that they worked to establish the norm that pedestrians must defer to cars on city streets, instead of cars deferring to pedestrians. This makes it viable to actually get somewhere by driving a car in the city, but at the cost of dramatically reducing walkability and undermining incentives for public transit.