Quote:
Originally Posted by Hali87
The American Rust Belt definitely has cities that have had to plan for decline. "Look at neighbourhoods, decide that there aren't enough residents to cover the required services, and shut off the taps" was a very real process in Detroit, for example. The alternative was for the city to continue to pay large amounts of money that it didn't have to service huge areas of vacant/uninhabited/unused land.
It's unlikely that Fort McMurray, for example, will continue to grow forever. Plans there likely take that into account. One of Saint John (NB)'s recent municipal plans was based around projections of short-term population decline followed by longer-term growth.
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Detroit was the result of urban decay though, which is a different thing altogether. Metro Detroit never stopped growing, and the commercial / cultural core is infamous for being propped up by monies donated from the exurbs while the city administration had to declare bankruptcy.
It's true that unlimited growth is unsustainable, but the point is sustainability. Large centres should be sufficiently diversified and generate enough economic activity that
ceteris paribus, they would be the last places to start shrinking.
I would note that Fort Mac is an exception that proves the rule - it is a boom town similar to Klondike-era Dawson City, which at one point ranked in the top 10(!) population centres of Canada. Additionally, Fort Mac is technically not a city but a hamlet, so if it goes belly up then then Province of Alberta will have to step in (which would be very interesting because municipalities can't run deficits). I suppose that is the real 'out' for a shrinking city, although I reckon other factors (urban decay, loss of major employment sectors etc.) will kill a city loooong before demographics would.