One generalized truism is that European cities are walkable and transit-supportive, and North American cities are not. This is not universally true, but it's often thought to be directionally true. However, a recent paper called "Car Dependency in Urban Accessibility" reveals that this may not be as true as we think.

The study introduces something called a Car Dependency Index (or CDI). What it effectively does is compare accessibility to jobs and services within a city by car versus public transit. They did this for 18 European and North American cities, and here's what they found:

A positive score (red on the map) means that a car can access more opportunities than public transportation, and a negative score (blue on the map) means the opposite. What's not surprising is how car-dependent the outskirts of most cities are, including European cities. Car dependency was high in over 70% of the urban territories that they analyzed.

What is more surprising to me is that most cities don't have much, if any, blue. The best-case scenario seems to be a lot of white (which represents accessibility parity between cars and public transit). Hmm. Does Manhattan really not have any blue? The glaring exception is Paris and, to a lesser extent, Zurich, though keep in mind these are only city proper boundaries.

Another finding is that car dependency remains a primary driver of car ownership, even when accounting for income. What this means is that if you took two people with the exact same income, one living in transit-rich Paris and the other living in the suburbs of Rome, the person in Rome is much more likely to own a car.

Once again, this supports the obvious fact that if we design cities so that they're inconvenient to navigate without a car, well, then more people will get cars. It's not easy to build a transit network that can compete. Individual lines won't do it. The key word is "network." And you need the right land-use policies to support it.

Cover photo by Alessio Ferretti on Unsplash

Charts from "Car Dependency in Urban Accessibility."

We have spoken many times before about the fact that Japan is built around rail-oriented urbanism. But if you have the time right now, I'm going to suggest that you read this longish article by Matthew Bornholt & Benedict Springbett called "Why Japan has such good railways," because nowhere else in the developed world uses rail for passenger kilometres more than Japan, and they explain why.

One common hypothesis, which is mentioned in the article, is that it's largely cultural. The Japanese are rule-abiding collectivists who are more willing to take public transit compared to us selfish and individualistic North Americans. But this doesn't seem right. In fact, one could argue that the Japanese solution is actually more free-market oriented.

The Japanese rail model seems to work so well because (1) most of the network is private, (2) liberal land-use policies have allowed Japan's urban centres to develop enough density to properly support the use of rail, and (3) the rail operators make money in a bunch of other ways beyond rail. They're typically also in the business of real estate.

Here's a quote from the article by the president of the Tokyu Group that I absolutely love:

I think that though we are a railway company, we consider ourselves a city-shaping company. In Europe for instance, railway companies simply connect cities through their terminals. That is a pretty normal way of operating in this industry, whereas what we do is completely different: we create cities and then, as a utility facility, we add the stations and the railways to connect them one with another.

This is a fundamentally different model that allows rail companies to capture some of the value that they inherently create. To use the example of Toronto's Eglinton Crosstown line, it's the difference between saying, "I'm going to build a rail line and then, presumably, other stuff will happen," and, "I'm going to develop this midtown corridor and then I'm going to run rail underneath it to maximize value creation."

If Japan can do it, so can we. Ironically, a big part of it means easing land-use controls and allowing transit-oriented development to simply be what it wants to be — dense and proximate to rail.

Cover photo by Mylène Larnaud on Unsplash

Charts from Work in Progress

Between 2010 and 2025, the Métropole du Grand Paris added nearly 160 kilometres of new or extended transit lines and opened 200 new transit stations across the region. These numbers include all modes of transport, including RER, metro, tram, cable cars, and BRT. On top of this, a further 199 new stations are scheduled to open between 2026 and 2032 (a shorter time period), meaning there's an argument to be made that Paris is getting better and faster at delivering transit.

Imagine that.

This, as we have talked about before, is a remarkable achievement and one that is reshaping the Métropole — particularly outside of Paris proper. Take a look. Here's a recent study and map from Apur that shows how these completed and upcoming lines have impacted, and are expected to impact, transit access in the region:

The coloured areas represent access to transit within a 15-minute walk (assuming you're able to walk at a reasonable 4 km/hr). The lightest blue areas are lines/catchment areas that existed in 2010. The medium blue represents lines/areas that came online between 2010 and 2025. And the darkest blue represents lines/areas that are scheduled to come online between 2026 and 2032.

If you're familiar with Paris, you'll be able to tell that the majority of the recent transit expansion has happened outside of the boundaries of Paris. This is important because prior to 2010, all of Paris was already well-served by transit (seriously, 100% of the population was/is within walking distance of at least one transit line).

However, this is not the case in the rest of the Métropole. In 2010, about 56% of the population (outside of Paris proper) had access to at least one line, with 23% having access to two. As of 2025, this number has increased to 66%. And by 2032, with the opening of the lines currently underway, it is expected that 80% of the population within the entire Métropole will be transit-connected.

It's hard to overstate the importance of these changes. The Paris region has long been criticized for the divide that exists between its historic centre and its surrounding suburbs and cities. Historically, this has been a socio-economic divide, and a built form divide. But this divide is now being erased. New infrastructure is stitching the region together, tightening its geography, and encouraging the development of new economic centres.

Forget the Paris you know. The growth and change are now happening along its edges. Welcome to the new Greater Paris Metropolis.

P.S. To commemorate the 10th anniversary of the Métropole du Grand Paris (created on January 1, 2016), Apur recently published a book called Atlas de la Métropole du Grand Paris. I haven't been able to find a site that will ship to Toronto, but if you're in Paris, you can order or pick one up at the following bookstores.

Cover photo by Ally Griffin on Unsplash

Maps and charts from Apur