In Google's guide to its maps, there is a section on live traffic congestion, and in it, this image is used:

It is a map of the Toronto region, and not surprisingly, it is showing traffic congestion on the 401 highway. But what's interesting about this image is that there's no traffic at all on the 407 express toll route. (This is the green highway running generally parallel and north of the 401, for those of you who aren't familiar with Toronto.)
This is, of course, accurate. A 2019 study by the Canadian Centre for Economic Analysis called the Economic Impacts of Highway 407 found that, at the time, an average of 413,000 drivers were using the 407 highway each weekday. And of these trips, more than 85% of vehicles were travelling at or above 100 km/h. This translates into a traffic congestion index of almost zero.
During this same time, the highway 401 through Toronto showed that about 85% of vehicles were travelling below 50 km/h. Meaning, lots of congestion. This also had a significant impact on collision and fatality rates. On the 407, both were about half of what they were on the 401. (I couldn't find any more decent data, but if you have it, please share it in the comments.)
The reason for these differences is simple: the 407 charges for congestion. Here are the current per kilometer weekday rates for light vehicles travelling westbound:

Naturally, there are people who think the 407 is too expensive and that it shouldn't have been privatized. But the reality is that it works; really well in fact. And this is the only method that has been proven to reliably combat congestion. We can go ahead and spend a gazillion dollars building a new tunnel under the 401, and double the number of lanes (it's already 18 lanes at its widest point), but we already know that it won't solve our congestion problem.
Either we price roads and congestion, or we don't. But if we don't, then we need to be brutally honest with ourselves about the economic trade off that we are making: free/underpriced roads = traffic congestion, and accurately priced roads and congestion = less traffic. The choice is ours. But know, there's no such thing as a free lunch.
Chris Hagerbaumer is the deputy director of the Oregon Environmental Council. She recently delivered the below testimony on “variable traffic-based tolls”, a form of road pricing. This is something we have talked a lot about here on the blog.
Oregon is currently looking at implementing this on two freeways in Portland, which is why Chris delivered this testimony. And as many of you know, I am very much in support of this demand management approach. So here you are: why congestion pricing makes sense for Portland (taken from City Observatory).
——————————————————–
The question in front of you is: how do we actually solve congestion, solve it in a way that is the least cost to the taxpayer, and in a way that doesn’t result in more pollution. When we add more supply (in other words, build more roads) we end up exactly where we started when it comes to congestion (due to induced demand), we spend billions of taxpayer dollars (much of which comes from drivers who aren’t the ones demanding more road space), we harm surrounding communities as highways encroach into neighborhoods, and we pollute the air and heat up the planet.
Induced demand is the fact that when you add freeway capacity it induces longer trips, more sprawl and more driving. Traffic is like a gas, expanding to fit whatever space there is. In one infamous example, Texas spent nearly $2.8 billion expanding Katy Freeway to 26 lanes and congestion has actually worsened.
Building new roads is a supply-side solution that simply doesn’t work.
An effective, least-cost, environmentally sound way to address congestion is the proposal before you: congestion pricing to manage demand. Drivers pay an automated fee to enter highly congested roads at peak hours; in return, they travel smoothly and reliably, getting where they need to go on time. Prices are set at the lowest possible level to free up just enough road space to eliminate bottlenecks.
When you eliminate bottlenecks and get traffic flowing freely, you have—in essence—added capacity. You no longer need to add new lanes, you save taxpayers a bundle, and you reduce dangerous auto and truck exhaust.
Congestion pricing is a demand management solution that’s proven to work and does so in cities around the world. Drivers opposed congestion pricing at first: no one wants to pay more. But that opposition of 60% or more turned into support of 60% or more after congestion pricing was implemented. People’s opposition turned to support because they now get that it works—they experience the value.
Equitable application of congestion pricing absolutely requires mitigating diversion to local streets. But note that congestion pricing actually pulls many drivers who were already cutting through local roads back to the highway because those drivers who were stuck in traffic now have an option to get where they need to go, on time, for a small price.
Equitable application of congestion pricing also requires significantly increasing transit service and other travel options in the corridor and considering other means to make the system work for low-income commuters who must drive during peak hours, such as targeted discounts or exemptions.
We think of highways as free and we think of driving as freedom, but by investing almost solely in infrastructure for cars over most of the 20th century and into the 21st century, we created a transportation system that is costly not only for our pocketbooks, but for our very health and wellbeing and our region’s economic prosperity, a transportation system that contributes to the existential risk of runaway climate change.
You have an opportunity to make a decision that will lead to less time stuck in traffic, healthier air, and more economic prosperity for the region and state. We hope you embrace that opportunity.
Photo by Zach Savinar on Unsplash

For those of who were following Architect This City during the Gardiner Expressway East debate here in Toronto, you might remember that Darren Davis (transport planner with Auckland Transport) wrote a guest post called, Three minutes that rule the world – Will demolishing the Gardiner East actually make traffic worse?
It was an incredibly popular post at the time, so I’m thrilled that Darren volunteered to do another one on road tolls. This is a topic that I’m very interested in and have written about a few times. Road pricing, as you’ll see below, puts us in a bit of a chicken-and-egg situation. But sooner or later I think we will need to get our head around it, as will many other cities.
I hope you enjoy today’s post. Thanks again Darren.
——————————-
In Google's guide to its maps, there is a section on live traffic congestion, and in it, this image is used:

It is a map of the Toronto region, and not surprisingly, it is showing traffic congestion on the 401 highway. But what's interesting about this image is that there's no traffic at all on the 407 express toll route. (This is the green highway running generally parallel and north of the 401, for those of you who aren't familiar with Toronto.)
This is, of course, accurate. A 2019 study by the Canadian Centre for Economic Analysis called the Economic Impacts of Highway 407 found that, at the time, an average of 413,000 drivers were using the 407 highway each weekday. And of these trips, more than 85% of vehicles were travelling at or above 100 km/h. This translates into a traffic congestion index of almost zero.
During this same time, the highway 401 through Toronto showed that about 85% of vehicles were travelling below 50 km/h. Meaning, lots of congestion. This also had a significant impact on collision and fatality rates. On the 407, both were about half of what they were on the 401. (I couldn't find any more decent data, but if you have it, please share it in the comments.)
The reason for these differences is simple: the 407 charges for congestion. Here are the current per kilometer weekday rates for light vehicles travelling westbound:

Naturally, there are people who think the 407 is too expensive and that it shouldn't have been privatized. But the reality is that it works; really well in fact. And this is the only method that has been proven to reliably combat congestion. We can go ahead and spend a gazillion dollars building a new tunnel under the 401, and double the number of lanes (it's already 18 lanes at its widest point), but we already know that it won't solve our congestion problem.
Either we price roads and congestion, or we don't. But if we don't, then we need to be brutally honest with ourselves about the economic trade off that we are making: free/underpriced roads = traffic congestion, and accurately priced roads and congestion = less traffic. The choice is ours. But know, there's no such thing as a free lunch.
Chris Hagerbaumer is the deputy director of the Oregon Environmental Council. She recently delivered the below testimony on “variable traffic-based tolls”, a form of road pricing. This is something we have talked a lot about here on the blog.
Oregon is currently looking at implementing this on two freeways in Portland, which is why Chris delivered this testimony. And as many of you know, I am very much in support of this demand management approach. So here you are: why congestion pricing makes sense for Portland (taken from City Observatory).
——————————————————–
The question in front of you is: how do we actually solve congestion, solve it in a way that is the least cost to the taxpayer, and in a way that doesn’t result in more pollution. When we add more supply (in other words, build more roads) we end up exactly where we started when it comes to congestion (due to induced demand), we spend billions of taxpayer dollars (much of which comes from drivers who aren’t the ones demanding more road space), we harm surrounding communities as highways encroach into neighborhoods, and we pollute the air and heat up the planet.
Induced demand is the fact that when you add freeway capacity it induces longer trips, more sprawl and more driving. Traffic is like a gas, expanding to fit whatever space there is. In one infamous example, Texas spent nearly $2.8 billion expanding Katy Freeway to 26 lanes and congestion has actually worsened.
Building new roads is a supply-side solution that simply doesn’t work.
An effective, least-cost, environmentally sound way to address congestion is the proposal before you: congestion pricing to manage demand. Drivers pay an automated fee to enter highly congested roads at peak hours; in return, they travel smoothly and reliably, getting where they need to go on time. Prices are set at the lowest possible level to free up just enough road space to eliminate bottlenecks.
When you eliminate bottlenecks and get traffic flowing freely, you have—in essence—added capacity. You no longer need to add new lanes, you save taxpayers a bundle, and you reduce dangerous auto and truck exhaust.
Congestion pricing is a demand management solution that’s proven to work and does so in cities around the world. Drivers opposed congestion pricing at first: no one wants to pay more. But that opposition of 60% or more turned into support of 60% or more after congestion pricing was implemented. People’s opposition turned to support because they now get that it works—they experience the value.
Equitable application of congestion pricing absolutely requires mitigating diversion to local streets. But note that congestion pricing actually pulls many drivers who were already cutting through local roads back to the highway because those drivers who were stuck in traffic now have an option to get where they need to go, on time, for a small price.
Equitable application of congestion pricing also requires significantly increasing transit service and other travel options in the corridor and considering other means to make the system work for low-income commuters who must drive during peak hours, such as targeted discounts or exemptions.
We think of highways as free and we think of driving as freedom, but by investing almost solely in infrastructure for cars over most of the 20th century and into the 21st century, we created a transportation system that is costly not only for our pocketbooks, but for our very health and wellbeing and our region’s economic prosperity, a transportation system that contributes to the existential risk of runaway climate change.
You have an opportunity to make a decision that will lead to less time stuck in traffic, healthier air, and more economic prosperity for the region and state. We hope you embrace that opportunity.
Photo by Zach Savinar on Unsplash

For those of who were following Architect This City during the Gardiner Expressway East debate here in Toronto, you might remember that Darren Davis (transport planner with Auckland Transport) wrote a guest post called, Three minutes that rule the world – Will demolishing the Gardiner East actually make traffic worse?
It was an incredibly popular post at the time, so I’m thrilled that Darren volunteered to do another one on road tolls. This is a topic that I’m very interested in and have written about a few times. Road pricing, as you’ll see below, puts us in a bit of a chicken-and-egg situation. But sooner or later I think we will need to get our head around it, as will many other cities.
I hope you enjoy today’s post. Thanks again Darren.
——————————-
Because there is no incentive to act in the public good, we often act in what we perceive to be our own personal interest, which is often the antithesis of the public interest. And remember that if we are driving, we are traffic. So often people will sit fuming in their cars in the midst of congestion with thoughts like in this cartoon. But of course with unpriced roads, there is no real price signal to these drivers to consider taking the bus.

In a world where time is money, we are constantly berated about the economic costs of congestion. In 2011, the Toronto Board of Trade estimated that congestion in the Toronto region alone cost the regional economy $6 billion a year, rising to an estimated $15 billion in 2031 should no action be taken. More recent research by the CD Howe Institute pegs this figure at up to $11 billion.
Given these sorts of eye-watering figures, one might be tempted to think that car drivers, and in particular the goods industry, would be flinging their wallets open at the chance to buy their way out of congestion. And in fact Toronto has the 407 Express Toll Route which has elements of variable road pricing. However, while the 407 ETR carries around 350,000 vehicles per day, price increases have been matters of controversy. It provides some ability for those who can afford it to bypass Toronto’s notorious traffic congestion, but its fundamental weakness is that it’s just one road in one of North America’s largest city-regions.
Similar stand-alone efforts to address congestion in Metro Vancouver with tolled routes, such as the Port Mann Bridge on the Trans-Canada Highway and the Golden Ears Bridge, have fallen well short of their projected traffic volumes, while nearby untolled bridges such as the Patullo Bridge are heavily congested. We have a similar experience in New Zealand where our two tolls roads, with car tolls of $2 and $2.20 respectively, experience diversion rates of up to 30% to the alternative but substantially longer and slower free routes.
This brings up a fundamental paradox: Congestion costs the economy a fortune and congestion is a top-of-mind frustration, yet people seem reluctant to pay even comparatively small amounts to bypass congestion.
For example, the City of Toronto’s Roundtable on Gridlock & Traffic Congestion in February 2014 came up with the usual shopping list of “transportation systems management” responses – improved management of curbside space and construction projects; synchronized traffic signal phasing; better traveller information and improved incident response. While these are all worthwhile responses, they only improve system operation at the margins. Encouraging greater use of public transit was the very last recommendation and there was not a single mention of charging or pricing as a tool to address congestion. And the feverish activity continues with a hackathon called TrafficJam on October 2 - 4, 2015 with the goal of fixing Toronto’s traffic woes.

The very few cities that have actually had significant success at reducing traffic congestion – notably Singapore, London and Stockholm – have done this through cordon-based congestion pricing wherein if you pass the cordon, you pay the congestion charge. Entering central London on a weekday between 7am and 6pm will set you back a cool £11.50 ($C23.30). From 2003 to 2013, about £1.2 billion ($C2.42 billion) of congestion charge revenue has been invested in public transport, road and bridge improvements and walking and cycling, of which £960 million ($C1.94 billion) was for bus improvements. These measures have included significant road space reallocation to improve conditions for pedestrians, cyclists, public transit and the urban realm.
The latest Travel in London report states that “Over the 10-year period from 2003, total trips have increased by 11.4 per cent, with particularly notable increases of 52.3 per cent in rail trips and 32.0 per cent in Underground and DLR [Docklands Light Railway] trips, with cycle trips (as main mode) increasing by 53.9 per cent. Car driver trips decreased by 12.7 per cent over the same period” (my emphasis).
One interesting insight is that Stockholm trialed congestion charging and then reverted to business as usual of unpriced roads in advance of a referendum on congestion pricing. This gave Stockholmers a clear sense of the difference in traffic congestion and was crucial in supporting a yes vote in the referendum.
Stockholm has experienced a permanent reduction in traffic of about 20% across the toll cordon and congestion decreased by 30 – 50% - which demonstrates that traffic volume reductions have a disproportionately positive impact on congestion. About half of the “disappearing” drivers changed to transit, the rest to other alternatives such as different departure times and destinations and taking fewer trips.
For more on Stockholm, I suggest reading the Tools of Change case study on Stockholm Congestion Pricing.

Before and after congestion charge photos of traffic levels in Stockholm
While this sounds very promising, congestion charging has significant equity implications and requires upfront investment to provide people who either choose to or can no longer afford to drive with transportation alternatives. Both Stockholm and London invested very heavily in public transit in advance of implementing congestion charging.
And this brings up a big issue for Toronto.
For congestion charging to have a meaningful impact on congestion without stifling economic activity or impeding people’s ability to move around, the core capacity of Toronto’s transit system would need to be addressed first. In particular the Yonge Line capacity enhancements, Metrolinx’s Regional Express Rail and most likely the Downtown Relief Line would need to be in place to provide both capacity and choice for people who either needed or wanted a travel alternative to any congestion charge. This would mean that Metrolinx’s Big Move might need to get even bigger.
Disclaimer: The author of the above post is an employee of Auckland Transport, however, the views, or opinions expressed in this post are personal to the author and do not necessarily represent the views of Auckland Transport, its management or employees. Auckland Transport is not responsible for, and disclaims any and all liability for the content of the article.
Because there is no incentive to act in the public good, we often act in what we perceive to be our own personal interest, which is often the antithesis of the public interest. And remember that if we are driving, we are traffic. So often people will sit fuming in their cars in the midst of congestion with thoughts like in this cartoon. But of course with unpriced roads, there is no real price signal to these drivers to consider taking the bus.

In a world where time is money, we are constantly berated about the economic costs of congestion. In 2011, the Toronto Board of Trade estimated that congestion in the Toronto region alone cost the regional economy $6 billion a year, rising to an estimated $15 billion in 2031 should no action be taken. More recent research by the CD Howe Institute pegs this figure at up to $11 billion.
Given these sorts of eye-watering figures, one might be tempted to think that car drivers, and in particular the goods industry, would be flinging their wallets open at the chance to buy their way out of congestion. And in fact Toronto has the 407 Express Toll Route which has elements of variable road pricing. However, while the 407 ETR carries around 350,000 vehicles per day, price increases have been matters of controversy. It provides some ability for those who can afford it to bypass Toronto’s notorious traffic congestion, but its fundamental weakness is that it’s just one road in one of North America’s largest city-regions.
Similar stand-alone efforts to address congestion in Metro Vancouver with tolled routes, such as the Port Mann Bridge on the Trans-Canada Highway and the Golden Ears Bridge, have fallen well short of their projected traffic volumes, while nearby untolled bridges such as the Patullo Bridge are heavily congested. We have a similar experience in New Zealand where our two tolls roads, with car tolls of $2 and $2.20 respectively, experience diversion rates of up to 30% to the alternative but substantially longer and slower free routes.
This brings up a fundamental paradox: Congestion costs the economy a fortune and congestion is a top-of-mind frustration, yet people seem reluctant to pay even comparatively small amounts to bypass congestion.
For example, the City of Toronto’s Roundtable on Gridlock & Traffic Congestion in February 2014 came up with the usual shopping list of “transportation systems management” responses – improved management of curbside space and construction projects; synchronized traffic signal phasing; better traveller information and improved incident response. While these are all worthwhile responses, they only improve system operation at the margins. Encouraging greater use of public transit was the very last recommendation and there was not a single mention of charging or pricing as a tool to address congestion. And the feverish activity continues with a hackathon called TrafficJam on October 2 - 4, 2015 with the goal of fixing Toronto’s traffic woes.

The very few cities that have actually had significant success at reducing traffic congestion – notably Singapore, London and Stockholm – have done this through cordon-based congestion pricing wherein if you pass the cordon, you pay the congestion charge. Entering central London on a weekday between 7am and 6pm will set you back a cool £11.50 ($C23.30). From 2003 to 2013, about £1.2 billion ($C2.42 billion) of congestion charge revenue has been invested in public transport, road and bridge improvements and walking and cycling, of which £960 million ($C1.94 billion) was for bus improvements. These measures have included significant road space reallocation to improve conditions for pedestrians, cyclists, public transit and the urban realm.
The latest Travel in London report states that “Over the 10-year period from 2003, total trips have increased by 11.4 per cent, with particularly notable increases of 52.3 per cent in rail trips and 32.0 per cent in Underground and DLR [Docklands Light Railway] trips, with cycle trips (as main mode) increasing by 53.9 per cent. Car driver trips decreased by 12.7 per cent over the same period” (my emphasis).
One interesting insight is that Stockholm trialed congestion charging and then reverted to business as usual of unpriced roads in advance of a referendum on congestion pricing. This gave Stockholmers a clear sense of the difference in traffic congestion and was crucial in supporting a yes vote in the referendum.
Stockholm has experienced a permanent reduction in traffic of about 20% across the toll cordon and congestion decreased by 30 – 50% - which demonstrates that traffic volume reductions have a disproportionately positive impact on congestion. About half of the “disappearing” drivers changed to transit, the rest to other alternatives such as different departure times and destinations and taking fewer trips.
For more on Stockholm, I suggest reading the Tools of Change case study on Stockholm Congestion Pricing.

Before and after congestion charge photos of traffic levels in Stockholm
While this sounds very promising, congestion charging has significant equity implications and requires upfront investment to provide people who either choose to or can no longer afford to drive with transportation alternatives. Both Stockholm and London invested very heavily in public transit in advance of implementing congestion charging.
And this brings up a big issue for Toronto.
For congestion charging to have a meaningful impact on congestion without stifling economic activity or impeding people’s ability to move around, the core capacity of Toronto’s transit system would need to be addressed first. In particular the Yonge Line capacity enhancements, Metrolinx’s Regional Express Rail and most likely the Downtown Relief Line would need to be in place to provide both capacity and choice for people who either needed or wanted a travel alternative to any congestion charge. This would mean that Metrolinx’s Big Move might need to get even bigger.
Disclaimer: The author of the above post is an employee of Auckland Transport, however, the views, or opinions expressed in this post are personal to the author and do not necessarily represent the views of Auckland Transport, its management or employees. Auckland Transport is not responsible for, and disclaims any and all liability for the content of the article.
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