New NBER paper from Ed Glaeser & co finds that 12% of the median US city resident's daily trips are within a 15-min walk.
Policy implication: "Less restrictive zoning rules, such as permitting more mixed-use development, would lead to shorter travel times."
https://www.nber.org/papers/w30752?utm_campaign=ntwh&utm_medium=email&utm_source=ntwg6
