How much will life in the cities change if gasoline costs significantly more than it does today?
Will the city be able to offer the housing, transportation options or amenities that its residents may prefer if fuel becomes a more expensive item relative to the family budget?
These are some questions I’ve been pondering lately and would welcome your input.
Assuming that oil prices over the next 10-20 years reach and surpass the previous high of $147 per barrel, and gasoline prices reach $2 or even $4 per litre, or $5 to $8 per gallon, how will life in cities really change?
Will it make a difference if the price escalation happens quickly or gradually?
Scenario one: new technologies emerge to allow for existing infrastructure to continue working. One significant obstacle to any change is the existing built infrastructure. The roads, bridges, freeways, housing stock, schools, office buildings, industrial and retail parks that we will be using for the next 50 years, and beyond, are largely already built. Retro-fitting rapid transit into this framework tends to be costly and highly disruptive to people’s daily lives. Plus, many people like their suburban lifestyle (even if there is a growing trend toward higher density, inner-urban area living it won’t appeal to everyone).
Therefore, it’s highly possible that in most North American cities, the private automobile will still be dominant 30 years from now. It may be smaller than the SUVs of today; it may run on electricity, fuel cells, a hybrid of sources, or simply have a much more fuel efficient gasoline engine and/or be less powerful.
Under this scenario, walking, cycling, densification, and transit use may still be gradually increasing in the cities as there are a variety of compelling reasons for people to change their lifestyles, but I’m suggesting that the private automobile and the infrastructure and built environment that supports it will remain a dominant force in urban life.
Scenario two: Strong shift to higher density living, and living close to work
Suppose gasoline costs rise relatively rapidly, and quickly become a significant drag on the living standard and lifestyle of the majority of individuals and families. Waiting for new automotive technology may not be an option. Families living in distant suburbs will need to reign in expenses and the fastest way to do it may be to move to a smaller home in a transit oriented neighbourhood closer to the income earner(s) place(s) of work. This will be a boom to real estate developers — but also a challenge to them, city planners, and an entire construction industry to keep up with demand in order for such housing to remain somewhat affordable to these suburban refugee families.
Will there be a sudden demand for additional schools? Can public school boards and private education providers manage this? Will the local transit authority be able to manage a rapid increase in demand for transit from these new hub communities?
This scenario would also likely see a rapid decline in suburban residential real estate prices, trapping some families out there with “under water” mortgages (and in Canada you can’t walk away from these as easily as in the US). On the plus side, such “stuck families” may see their commutes become less time consuming if fewer people are clogging the roads.
Other Scenarios, briefly:
Is there a larger scale migration from low density metro areas to higher density places?
Does working from home (or satellite offices) become much more viable with the rapid expansion of affordable, high-end video conferencing technology?
Will there be different “winner” and “loser” cities? Ones that cannot keep talented people because driving is expensive and the built environment isn’t adapting fast enough, or can’t adapt?
None of these are necessarily mutually exclusive. Thoughts and ideas welcome.

The scenarios you describe are mapped in more detail in Christopher Steiner’s $20 Per Gallon: How the Inevitable Rise in the Price of Gasoline will Change Our Lives for the Better, which I discuss in some detail at the link. He thinks rising gas prices will force people into cities and into efficient public transportation.
I’m not so sure, chiefly because of the issue of technological change you introduced in scenario one: a combination of hybrid and battery-powered cars might allow, more or less, the continuation of current trends toward distant development into the future.
Thanks Jake. Excellent book review (I must confess that the publisher sent me the book and I have yet to get past the introduction).
I agree with what you said in the review that many people seem to be promoting their own personal hopes in these “analyses” of what higher oil could mean — And showing their biases in the process.
A heavy dose of “Occam’s Razor” needs to be applied.
Excellent book review (I must confess that the publisher sent me the book and I have yet to get past the introduction).
Yeah. As I think I said in the review, you don’t really need the book if you’ve been following the issue and/or read the reviews.
I’d actually prefer denser cities and less driving—I liked this New Yorker article on the subject—and if we eventually get them thanks to higher gas prices, that would be a bonus. Moving from Seattle to Tucson for graduate school was a major step down in terms of urban life: in the former, I could walk almost everywhere I needed to go; now I live in the land of parking lots and six-lane streets.
Depends where you live in Tucson (I went to grad school there too), but it is quite automobile centric and low density. I lived near campus on University Ave and found I could walk or bike for almost everything except grocery shopping. But it was nice to have a car to be able to visit all the great recreation places nearby like Sabino Canyon, Mt. Lehmon, (sp) and that desert area just west of the city near Old Tucson Studios (one of my favorite places).
As a result, principals often feel it is better to stay above the fray. ,
It would be interesting to examine how much owning and operating a car has actually cost the average family, with respect to household income, over the years, and the way that that cost has already affected the way we live. I know that it’s apparent when you compare a neighborhood consisting of 1920′s bungalows to 1970′s ranch houses, for example, but I’d love to see a numeric representation of how much of their income families spent on their automobiles over the past century.
Laura, good question. There are probably some variations on the question too. For example, in addition to how much the average family paid out of after-tax income for their car and using it, how much of their taxes went to road construction and otherwise supporting the “automobile habit”?
Don’t have an answer, but I’ll keep an eye out for data.