A few weeks ago I wrote a post talking about megalopolises and the importance of the Great Lakes region in North America. And I suggested that high speed rail could be one way to better stitch together the region.
To some, I’m sure this sounded like a bit of a pipe dream. But thinking at the megalopolitan scale is something that I think we are going to need to do. Other parts of the world certainly are.
The Chinese government is in the midst of developing a supercity around Beijing that is called Jing-Jin-Ji. It will span about 82,000 square miles and will house approximately 130 million people.
As part of the plan, a high-speed rail network is being built that will bring the region’s major cities within an hour’s commute. The objective is to compete with the Pearl River Delta and the Yangtze River Delta regions in the south.
It’s a scale of planning and development that most people aren’t used to thinking about. But it’s happening right now.
Image: New York Times
Back in February of this year (2015), Philip Oldfield, who is an Assistant Professor of Architecture at the University of Nottingham, gave the following talk at the Illinois Institute of Technology. Click here if you can’t see it below.
[youtube https://www.youtube.com/watch?v=lOfkx39soIs?rel=0]
If you’re interested in cities and how tall buildings might make them more sustainable, you’ll enjoy it. It’s filled with a number of interesting stats and takeaways, and it’s about an hour long.
the traffic jam by Phoebe Eve on 500px
In 1968, Garrett Hardin wrote an article where he coined the term: the tragedy of the commons. Hardin was an American ecologist who was obsessed and concerned with the prospect of human overpopulation.
In his article, the term tragedy of the commons was used to describe a situation where individuals – all acting independently and in their own self-interest – actually end up behaving in a way that is detrimental to the larger group and that negatively impacts some sort of common resource.
Just in case, here’s another definition via Investopedia:
An economic problem in which every individual tries to reap the greatest benefit from a given resource. As the demand for the resource overwhelms the supply, every individual who consumes an additional unit directly harms others who can no longer enjoy the benefits. Generally, the resource of interest is easily available to all individuals.
So what would be an example of a tragedy of the commons?
You may not have thought of it in these terms, but I bet you that everybody reading this blog has experienced one.
I will give you two examples.
1. The first is that of electricity consumption.
In most condominiums, there are two types of ways that electricity gets billed and paid. Either the whole building gets one bill (master metering) or each individual resident gets a bill (submetering).
In the case of master mastering, each resident’s consumption isn’t tracked and so nobody knows who is consuming what. But in the case of submetering, each individual resident only pays for the electricity that they use.
Not surprisingly, the data shows that submetering can cut electricity consumption by 10 to 30%. That’s because it creates a 1:1 relationship between usage and cost. There’s now a strong incentive to conserve.
With master metering, there isn’t a 1:1 relationship between usage and cost. The additional burden/cost of consumption actually gets shared by everyone else in the building. And since each individual is looking to maximize their own benefit, they lose the incentive to conserve. As a whole, this makes the entire group worse off.
2. The second example is that of congestion on public, un-tolled roads.
In most cities, public roads are a resource that is “easily available to all individuals” (to use Investopedia’s terminology). They are basically free. The marginal cost of driving another kilometer to work on a road is basically nothing (other than a bit of gas and some time).
What this does is create a situation where individuals – in their pursuit of maximum individual benefit – start to overload the road. Everybody just wants to get where they need to go and there’s no incentive to conserve the resource (i.e. the road). Once again, the result is that the entire group becomes worse off.
That’s why building more road rarely/never works. You’re simply increasing a resource that is easily available to all individuals. What we should instead be doing is looking at submetering our roads (i.e. pricing our roads). It’s been proven time and time again to reduce road congestion basically overnight.
I had never heard of the term tragedy of the commons before today, but I like it a lot. So the next time you’re stuck somewhere in traffic, you can now scream to yourself: What a tragedy of the commons!