Here's an example of the inability to build enough infrastructure in a city built on the Suburban model and the use of the automobile with the rapid population increase.

Old cities like NY or Mexico City built before the automobile have had 8M people, and 20M in the surrounding Metroplex for decades.  DFW however is a sprawling metropolis of 2 cities combined, Dallas and Fort Worth all hooked together by ribbons of interstate highways and a ring road.



There's no real public transportation to speak of.  Distances are so vast even cycling around means you have to be a touring cyclist.  The city planning of ring road and N-S, E-W connectors was used all over the FSoA beginning in the 1950s with the Eisenhower Interstate. Atlanta, Indianapolis, St. Louis and Oklahoma City all have similar plans.  Here is Atlanta's famous "Spaghetti Junction":



There's no more room to widen roads to accomodate more carz.  They would have to make the main thoroughfares double-decker, but even that wouldn't work because the local roads would all be overwhelmed.  I drove all these roads in my big rig 30 years ago.  The traffic was bad then.  I can't imagine how bad it is now.

This is REAL Limits to Growth.

https://www.nbcdfw.com/news/local/dfw-cannot-build-out-of-traffic-troubles/3546490/

DFW Metroplex cannot 'build out' of traffic troubles

RE