The development of some suburbs was enabled by mass transit prior to widespread adoption of cars. https://en.wikipedia.org/wiki/Streetcar_suburb https://en.wik

The development of some suburbs was enabled by mass transit prior to widespread adoption of cars. https://en.wikipedia.org/wiki/Streetcar_suburb https://en.wikipedia.org/wiki/Streetcar_suburb Cars enable more suburban development, but their throughput on highways sucks compared to mass transit, which also minimizes their spread in some cases.