Broadly speaking, cities tend to have better data on vehicular traffic than on pedestrian and bicycle traffic. This is because road design has traditionally prioritized the movement of cars, above all else. So it has felt right to bias traffic counts. But there are lots of places where pedestrians and cyclists greatly outnumber vehicles.
For example, I was on Queens Quay yesterday visiting my mom and, if you've ever been to Toronto's waterfront in the summer, you'll know that it has one of the busiest bike lanes/trails in the city — if not the busiest. But if you ask ChatGPT just how busy it is, it will more or less say, "I don't know. Really busy?" And that's because we don't have real-time usage data. We have estimates. And the same is true of pedestrian counts.
(If you're aware of a great dataset, please share it in the comment section below.)
But this is starting to change with the advent of AI traffic monitoring solutions that can handle multi-modal environments. Meaning they're capable of counting everything from pedestrians and scooters to cyclists and trucks. This is what cities need to make better decisions. And as this new tech becomes more widespread, I think it's going to show us just how much we've been missing.
Cover photo by Joshua Chua on Unsplash

Yesterday morning I went cycling in High Park to try and condition myself for the Bike for Brain Health ride that I have coming up. The Park is such an incredible amenity and I love being so close to it. Of course, before I set out, I turned on my Apple Watch and Garmin computer so that I could track it all in Strava. This has become such a big part of cycling (and working out in general). We're all data obsessed. Everyone wants to track their route, their speed, their heart rate, and whatever else.
The result is that Strava collects mountains of data about the way people actively move about in cities — data on everything from cycling to backcountry skiing. Some of this aggregated/anonymized data is available to the public via their global heatmap, but much more of it is available to urban planners and active transportation groups around the world. In fact, this is part of what Strava does: they help city builders. Here are some urban case studies spanning Rio de Janeiro to Park City.
Looking at central Toronto, our heatmap looks like this:


As counterintuitive as it may sound, one way you could try and improve traffic congestion is to discourage people from riding their bikes and instead encourage them to drive more. That's what's happening in Toronto right now. Another way is to dramatically restrict car usage. And starting this Monday, that's what Paris will be doing with its new limited traffic zone (zone à trafic limité) in the center of the city:

Broadly speaking, cities tend to have better data on vehicular traffic than on pedestrian and bicycle traffic. This is because road design has traditionally prioritized the movement of cars, above all else. So it has felt right to bias traffic counts. But there are lots of places where pedestrians and cyclists greatly outnumber vehicles.
For example, I was on Queens Quay yesterday visiting my mom and, if you've ever been to Toronto's waterfront in the summer, you'll know that it has one of the busiest bike lanes/trails in the city — if not the busiest. But if you ask ChatGPT just how busy it is, it will more or less say, "I don't know. Really busy?" And that's because we don't have real-time usage data. We have estimates. And the same is true of pedestrian counts.
(If you're aware of a great dataset, please share it in the comment section below.)
But this is starting to change with the advent of AI traffic monitoring solutions that can handle multi-modal environments. Meaning they're capable of counting everything from pedestrians and scooters to cyclists and trucks. This is what cities need to make better decisions. And as this new tech becomes more widespread, I think it's going to show us just how much we've been missing.
Cover photo by Joshua Chua on Unsplash

Yesterday morning I went cycling in High Park to try and condition myself for the Bike for Brain Health ride that I have coming up. The Park is such an incredible amenity and I love being so close to it. Of course, before I set out, I turned on my Apple Watch and Garmin computer so that I could track it all in Strava. This has become such a big part of cycling (and working out in general). We're all data obsessed. Everyone wants to track their route, their speed, their heart rate, and whatever else.
The result is that Strava collects mountains of data about the way people actively move about in cities — data on everything from cycling to backcountry skiing. Some of this aggregated/anonymized data is available to the public via their global heatmap, but much more of it is available to urban planners and active transportation groups around the world. In fact, this is part of what Strava does: they help city builders. Here are some urban case studies spanning Rio de Janeiro to Park City.
Looking at central Toronto, our heatmap looks like this:


As counterintuitive as it may sound, one way you could try and improve traffic congestion is to discourage people from riding their bikes and instead encourage them to drive more. That's what's happening in Toronto right now. Another way is to dramatically restrict car usage. And starting this Monday, that's what Paris will be doing with its new limited traffic zone (zone à trafic limité) in the center of the city:

What is immediately noticeable is that cyclists will go where they feel safe. And that generally means streets with dedicated bike lanes. Looking at the above map, you can see that some of the most popular north-south routes are Shaw Street, Beverley Street/St. George Street, and Sherbourne Street. All of these streets have dedicated bike lanes. In the east-west direction, it's also clear that Bloor Street and Danforth Avenue form a hugely important crosstown artery. It is widely used from Etobicoke all the way to Scarborough.
At the same time, these maps start to show where there are broken links in the network. Annette Street and a portion of Dupont Street are, for example, widely used until you get east of the Junction Triangle. Then it falls off. This is unsurprising because it's a stretch of Dupont that isn't very friendly to cyclists. I know I certainly try and avoid it. Instead, we see that cyclists seem to be shifting northward to Davenport, which has a nice bike lane.
This is just one example, and I'm sure there's a lot of other takeaways that can be gleaned from Strava's data. So if you're a city builder and you aren't already leveraging this dataset, you may want to consider applying for a Metro Partnership. I'll be sure to continue doing my part and feeding it data about my laps in High Park and my stops for burgers and croissant sandwiches.
This new ZTL is approximately 5 square kilometers. About 100,000 people live within its boundaries, and it is estimated that somewhere between 350,000 to 500,000 vehicles enter it each day. But according to the city, it is estimated that only around 30% of these trips are absolutely necessary (because of a lack of alternatives, for example). The purpose of the ZTL is to reduce the unnecessary ones.
The way it will work is that drivers will no longer be allowed to drive through this zone. You'll only be able to enter if you plan on stopping for a legitimate reason. It's not yet clear what this exact list of approved reasons will be, but the general idea is that if you want to drive in for dinner or to attend a meeting, that's fine. What you can't do, though, is just drive around in a souped-up Honda Civic blasting Taylor Swift.
The next 6 months are planned to be a period of education. Drivers exiting the zone are just going to be told that there's this new ZTL and that they better have stopped somewhere. But eventually there will be a 135 euro fine and eventually drivers will be expected to furnish some sort of supporting evidence for their stop, such as a restaurant receipt. There's also talk of adding automatic cameras.
Of course, this creates a lot of gray areas. What about if you're just going over to a friend's place for dinner? Will they then need to write you a note saying that you went over for some homemade bouillabaisse? Yeah, I don't know the answer to this. But you have to admit that this is a bold city-building move, and a far more effective way of improving traffic flows.
Unlike removing bike lanes, this plan will actually work.
What is immediately noticeable is that cyclists will go where they feel safe. And that generally means streets with dedicated bike lanes. Looking at the above map, you can see that some of the most popular north-south routes are Shaw Street, Beverley Street/St. George Street, and Sherbourne Street. All of these streets have dedicated bike lanes. In the east-west direction, it's also clear that Bloor Street and Danforth Avenue form a hugely important crosstown artery. It is widely used from Etobicoke all the way to Scarborough.
At the same time, these maps start to show where there are broken links in the network. Annette Street and a portion of Dupont Street are, for example, widely used until you get east of the Junction Triangle. Then it falls off. This is unsurprising because it's a stretch of Dupont that isn't very friendly to cyclists. I know I certainly try and avoid it. Instead, we see that cyclists seem to be shifting northward to Davenport, which has a nice bike lane.
This is just one example, and I'm sure there's a lot of other takeaways that can be gleaned from Strava's data. So if you're a city builder and you aren't already leveraging this dataset, you may want to consider applying for a Metro Partnership. I'll be sure to continue doing my part and feeding it data about my laps in High Park and my stops for burgers and croissant sandwiches.
This new ZTL is approximately 5 square kilometers. About 100,000 people live within its boundaries, and it is estimated that somewhere between 350,000 to 500,000 vehicles enter it each day. But according to the city, it is estimated that only around 30% of these trips are absolutely necessary (because of a lack of alternatives, for example). The purpose of the ZTL is to reduce the unnecessary ones.
The way it will work is that drivers will no longer be allowed to drive through this zone. You'll only be able to enter if you plan on stopping for a legitimate reason. It's not yet clear what this exact list of approved reasons will be, but the general idea is that if you want to drive in for dinner or to attend a meeting, that's fine. What you can't do, though, is just drive around in a souped-up Honda Civic blasting Taylor Swift.
The next 6 months are planned to be a period of education. Drivers exiting the zone are just going to be told that there's this new ZTL and that they better have stopped somewhere. But eventually there will be a 135 euro fine and eventually drivers will be expected to furnish some sort of supporting evidence for their stop, such as a restaurant receipt. There's also talk of adding automatic cameras.
Of course, this creates a lot of gray areas. What about if you're just going over to a friend's place for dinner? Will they then need to write you a note saying that you went over for some homemade bouillabaisse? Yeah, I don't know the answer to this. But you have to admit that this is a bold city-building move, and a far more effective way of improving traffic flows.
Unlike removing bike lanes, this plan will actually work.
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