According to its transportation network (via # of trips):
Click to embiggen.
Pay particular attention to the vertical y-axis, what I'm calling contextual impact. The transportation network has certain inputs and outputs, such as cost and infrastructure (input) as well as noise and pollution (output), which form a circular multiplier effect. These outputs reduce the quality of space, meaning reduced safety and desirability. The result is even less pedestrians. As a body politic we then turn and say, "well, there's no pedestrians and we have traffic, build more roads!"
Our quality of life.
Talent looking for a place to live and work.
Businesses looking for places for their employees to live.
Major events looking for a venue.