The New York Times recently argued that self-driving cars can’t cure traffic, but that economics can. Here is the key soundbite:

“Maybe autonomous cars will be different from other capacity expansions,” Mr. Turner said. “But of the things we have observed so far, the only thing that really drives down travel times is pricing.”

The argument here is that capacity expansions – such as additional lanes – never solve the problem of gridlock. Yes lane widening projects increase capacity, but the latent demand is so strong that the problem never gets solved. Even in places like Houston.

We talked a lot about this phenomenon on the blog a few years ago when Toronto was embroiled in debate over the Gardiner Expressway East. But it’s interesting to think about self-driving cars as simply another incremental capacity expansion.

I have no doubt that this technology will make more efficient use of our roads. Carpooling will be a lot easier – as is already the case. Cars will be able to drive closer together. We’ll be able to stop abrupt breaking and swift land changes, which actually create systemic traffic problems for everybody else.  And the list goes on.

But there will still be limits to how many people can be efficiently moved on a particular strip of road. Exactly how there are limits to how many people can be efficiently moved via a particular subway tunnel, streetcar line, and so on.

So if latent demand continues to outstrip available capacity, which has historically been the case, then we are once again back to the politically unpopular idea of pricing away congestion. As much as people criticize it as regressive, I believe that’s where we’re headed.

Earlier this week I was in an Uber heading up to Charles Street and the driver made a comment to me. He said that since he moved to Toronto in the 90′s, traffic has gotten progressively worse every single year. He continued on to say: and yet we continue to build, build, build.

My response won’t surprise anyone who reads this blog. I said that Toronto has become a far more exciting city since the 90′s because of intensification (though 1992 and 1993 were pretty awesome) and that the problem is our mental model. We haven’t moved beyond the car as the perceived solution to urban mobility.

A perfect example of this is what just happened with the province vetoing Toronto’s proposed road toll plan. 

Firstly, I fully agree with Marcus Gee of the Globe and Mail that this is both an act of cowardice (the province gave every indication that they initially supported the plan) and an act of arrogance (we are talking about roads owned by the city, not the province).

I also find it incredibly frustrating that Toronto cannot control its own destiny. This is a mistake and it needs to change if we – and the rest of the cities in this great country – are to continue competing at a high level in this urban century.

But to my initial point, the problem with this move is that it signals a status quo mental model. It is a clear reluctance to make any sort of bold moves to move Toronto in a new direction. I guess we are happy with the current trend line. More traffic.

We shouldn’t be.

Jarrett Walker of Human Transit recently published an interesting post talking about downtowns. His argument is that we shouldn’t be planning our transit networks around the traditional notion of a single-centered city.

Here’s a snippet:

So growing a single downtown isn’t the key to becoming a great transit city. Quite the opposite, it’s best to have a pattern of many centers, all generating high demand, and supporting balanced two-way flows between them that let us move more people on less infrastructure.  This is the great advantage of Paris or Los Angeles or the Dutch Randstad over Chicago or Manhattan.

Now, there are many cases where a singular economic center still dominates an urban region. See downtown Toronto. And many will argue that the current economic environment is creating more, rather than less, concentrated urban spikiness.

But at the same time it is quite clear that many of our cities have shifted away from a monocentric model to a polycentric one. 

I mean, just look at all employment nodes that have developed across the Toronto region. The idea that everyone comes downtown in the morning and then leaves in the evening has become an anachronism for many. Early in my career I spent 4 years commuting from downtown to the suburbs.

So what is happening is that our cities need to start performing more like point-to-point networks. This isn’t a new thought. But it’s a lot harder to execute on compared to what many cities have been used to. 

You need a critical density of both residents and employers and the right kind of connectivity to create a true “mobility hub.” In Toronto, you could argue that we really only have one of those and it’s centered around Union Station.

But I think that will change for many cities. And when we do get it right, we will be doing a lot to improve the crippling traffic congestion that so many of our cities are suffering from.