Radiolab has a great episode on Cities from a while back. https://www.kcrw.com/culture/shows/radiolab/cities https://www.kcrw.com/culture/shows/radiolab/cities

Radiolab has a great episode on Cities from a while back. https://www.kcrw.com/culture/shows/radiolab/cities https://www.kcrw.com/culture/shows/radiolab/cities Among other things, you can predict the average walking speed in a city with some accuracy.