Re: costs to cities, mostly focused on the extensive roadworks to serve solo car commuters - those are expensive and converted a lot of neighborhoods into something which consumes but does not generate tax income, and things like parking don’t generate much income, and all of that comes at a hefty cost to health & quality of life.
https://usa.streetsblog.org/2015/03/05/sprawl-costs-the-publ...
https://www.strongtowns.org/journal/2019/2/5/suburban-infras...
Re: costs to cities, mostly focused on the extensive roadworks to serve solo car commuters - those are expensive and converted a lot of neighborhoods into something which consumes but does not generate tax income, and things like parking don’t generate much income, and all of that comes at a hefty cost to health & quality of life.