Paris has a massive transit project that is currently under construction called the Grand Paris Express. It consists of 4 new metro lines, 1 line extension (at both ends), 68 new stations, and 200 km of new tracks. The first phase was the extension of Line 14. That opened last year. And the new lines are planned to open in stages up until 2031. I have no idea if they're on schedule and/or on budget, but here's a map of the GPE project:

Here's what it looks like if you overlay all existing metro lines (note how concentrated they are in Paris proper and how they're clearly designed to bring people into the core):

Here's what it looks like if you overlay all existing tram lines:

And finally, here's what it looks like if you overlay all existing RER lines (suburban rail):

At this point, the map is getting visually pretty cluttered. But if you look at how the GPE lines compare to what's existing, I think you'll start to see just how important this project is for the Métropole du Grand Paris (or Greater Paris). It creates a new set of concentric rings in the inner suburbs and, for the first time, it will allow Parisians to travel around the region (via rail) without first passing through the core of the city. So it's in effect both an expansion and a stitching together of the city.
But let's put some numbers to this.
According to a recent memo by Apur, which looked at the economic composition of the station areas, about 21% of all salaried employees in Grand Paris are located next to one of the new 68 stations. As a total number, this works out to about 934,000 employees (2022 figure). And included in this figure is La Défense, which is the office district where Paris decided to put most of its tall buildings. This has the highest concentration of jobs at approximately 163,599 salaried employees (again, 2022 figure).
Another way to think about these station areas is that they represent what many are now calling New Paris. This is a part of Paris that is less encumbered with history and, therefore, more open to change and new ideas. This creates an exciting opportunity, and already we're seeing that take hold. Later this week on the blog, I'll talk about a specific project in Greater Paris that is currently under construction and that I was fortunate enough to tour on this trip.
This morning on my way into the office I ran into a friend who lives in my building (downtown). She works in midtown and so I asked her how she gets into the office. She told me that she either takes the subway or an Uber, but that increasingly she has been taking Uber, particularly on the way home.
We then started talking costs and she told me that what she does is carpool with a friend from work using UberPOOL. They live nearby and so what they do is leave from the same place at night (the office) and then select a midpoint location between their homes for the drop-off. After splitting their portion of the fare, the ride costs her about $3.25.
As she was telling me this, I couldn’t help but think to myself: Wow, this is massively disruptive to transit. That is the same cost as taking the subway. So why take transit? With the subway, there may be a speed argument in certain instances, but that certainly wouldn’t be the case with some of Toronto’s streetcar lines (such as the King line). It’s faster to walk.
However, there are obviously geographic limits to how far you can go in an UberPOOL before your costs greatly exceed taking transit. But as Uber and other similar services continue to bring down the price of a ride (eventually the labor cost component will disappear), how big does that area get?
All of this – including my own mobility patterns – has got me thinking yet again about the role of transit in the city of tomorrow.
One segment that continues to be underserved is the regional scale. Here in the Greater Toronto Area, we are working on that by transforming our commuter rail service into a two-way all-day Regional Express Rail service. Today that strikes me as being hugely valuable. And unless driverless vehicles somehow solve our traffic problem, it will likely remain that way.
I would love to get your thoughts in the comments below.

On Thursday afternoon the mayor of Toronto, John Tory, was in London meeting with their mayor, Boris Johnston, and talking about Toronto-London business relations, the economy, and transit.
Here is the tweet:
I’m meeting with @MayorofLondon this afternoon to talk Toronto-London business relations, the economy & transit. pic.twitter.com/fpVsPIBvtQ
— John Tory (@JohnTory)
//platform.twitter.com/widgets.js
On the topic of transit, the big item to see and discuss was The Crossrail. For those of you who might not be familiar with it, here are a few bullet points from their website:
Crossrail is Europe’s largest construction project – work started in May 2009 and there are currently over 10,000 people working across over 40 construction sites.
The Crossrail route will run over 100km from Reading and Heathrow in the west, through new tunnels under central London to Shenfield and Abbey Wood in the east.
Crossrail will transform rail transport in London and the south east, increasing central London rail capacity by 10%, supporting regeneration and cutting journey times across the city.
Crossrail will bring an extra 1.5 million people to within 45 minutes of central London and will link London’s key employment, leisure and business districts – Heathrow, West End, the City, Docklands – enabling further economic development.
And below is a neat diagram that I found in this City of London report. I think it does a good job summarizing some of the spatial impacts of The Crossrail.

In the past I’ve been negative about John Tory’s SmartTrack proposal, which is clearly inspired by The London Crossrail. I had my reasons for that. But I want to be clear that I am not in any way negative on Regional Express Rail as a mobility solution.
Toronto would benefit greatly from RER and Metrolinx is working diligently to deliver it to the region. I can’t wait for that to happen so I can drive even less than I already do.

