The guy in this thread provided a link to strongtowns, there are other sources too, but I suggest starting with it since they cover most of what I'we written.

The guy in this thread provided a link to strongtowns, there are other sources too, but I suggest starting with it since they cover most of what I'we written. For me, mass catastrophe is not just referring to economic side(imo failing to maintain car infra bc it costs too much at some point bc of low density of population & high wear of the roads is pretty bad) but also the time lost on travel compounded over years for all ppl bc of the spread, the isolation of the ppl from each other, limited mobility options for old ppl or ppl with disabilities, higher pollution (even if we replace all cars with electro, it doesn't solve pollution fully, bc of tire wear particles, tonns of asphalt that should be renewed bc of many cars, etc...). When added all together, the image is not looking good. Us can 'afford' this bc of usd/dollar, loans and their economic position globally(when I write afford I mean they can afford to ignore the problem, at least for some time) but for other countries it may result in an economic suicide