I dont have the data but it seems transportation is something that exponentially gets harder to solve the more resources you have.

Anecdotally, I live in a suburban area in a "developing" country. It was definitely not designed for people to live in - there are no small shops just a huge big chain store, barely any sidewalks and I havent seen any people just walking about. Every house seems to have about two cars. Outside the suburbs its the complete opposite. Roads are full of people milling about and kids playing cricket or soccer. Cars are second class citizens on the townships. First class citizens in the suburbs. Crazy.