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

Cities exist because they offer economic and social benefits. People generally come to cities to make money, find a partner, and interact with other humans. Occasionally, we underestimate this desire to cluster — which was the case during our recent pandemic. But the reality is that this is a human tendency that has existed for thousands of years and that also happens to be accelerating.

I mean, as recent as 1980, only about 40% of the world's population was living in an urban area. Today, this figure is closer to 60%, and by 2080, it is predicted that up to 90% of the people on this planet will live in an urban center.

This will take the number of megacities with over 10 million people from 3 (in 1980) to nearly 100 in 2080 (according to projections from UN-Habitat). But here's the thing: cities help people become wealthier, but once people become wealthier, they tend to have far fewer children. This inverse correlation is well established. So intuitively, there should be limits to the growth we are seeing.

Here's an interesting article from CityLab by Greg Clark, Borane Gille and Jennifer Dolynchuk that pegs this peak somewhere around 2080. We will still remain extremely urban, but overall our population will start to decline. And for some cities, like Tokyo, this decline has already started.

Charts via CityLab

Some of you are probably shocked by this headline. But it is true. Here's the chart to prove it:

Toronto is number one. Los Angeles is number two. And New York sits just behind Winnipeg and Calgary. Huh?

The reason this is likely surprising to you is that when most people think of urban density they think of the urban core. And you are correct in thinking that the urban core of New York City is denser than the urban core of Winnipeg.

The difference here is that we are talking about "urban area" (or "population centre" in Canada). This is the continuously built up area around each major city. Think of it as the lit up area that you might see on a nighttime aerial photo.

Urban areas don't care about municipal or other jurisdictional boundaries. And they don't factor rural areas. Urban areas are a measure of continuous urbanization.

So even if you have the densest downtown on the planet, if you have a sprawling low-density urban area surrounding it, you can still end up with a relatively low overall population density. And this is precisely what is happening here with New York.

This is also why there's only so much that you can glean from a blended average like this. Because you can have very different urban forms and very different mobility splits (think New York City vs. Winnipeg), and still end up with somewhat comparable averages.

Chart: New Geography