Slow Streets AI, Coming Soon!

Cities invest billions of dollars in their streets, but are they maximizing the return on public investment from their streets? Are cities designing streets in a way that maximizes the health, safety, economic development and quality of life potential for their citizens? Most cities evaluate street designs based primarily on how quickly you can move the most vehicles through them. To evaluate the success of street designs in this manner fails to accurately capture the full impact of the design and the potential socio-economic benefits and impacts they provide.

What if you could measure how happy or disgruntled a street or public space design was making people? What if you could track how quickly people were walking because of a street design? What if we told you that you could now do that?

Slow Streets is excited to announce the unveiling of Slow Streets AI, a revolutionary and cutting edge new way to evaluate street and public space designs!

Slow Streets AI White Paper 2018-01-26

Slow Streets conducts behavioural observations of various street designs using artificial intelligence software which tracks and counts people and provides details such as their emotions, whether people were wearing glasses, had facial hair and their attributes such as age and gender. This provides data of how people actually travel and behave.

What are the impacts when you remove a curbside parking lane and replace it with a 60 km/hr curbside HOV lane? What are the impacts when you set back the retail buildings from the sidewalk with parking lots? What are the impacts when you lower the speed limit, provide protected bike lanes or parklets? People’s behaviours follow the street design and it has a direct impact on the social, economic and environmental success of cities. These are all scenarios that can be evaluated with Slow Streets AI.

Stay tuned! Over the next few weeks Slow Streets will unveil the capabilities of Slow Streets AI through a series of posts.


Women Mobility Survey and #UrbanDesign4Women Twitter Chat


Slow Streets UrbanDesign4Women Survey Flyer 2018-01-08

Happy New Year! Slow Streets would like to welcome you to the Women Mobility Survey and Twitter Chat!

Have you ever wondered if our city streets, mobility networks, and public spaces could be redesigned to enhance the wellbeing and safety of women and girls? We would like to share an important survey addressing this question. Prepared through a partnership of Slow Streets, Green Our Walls, UN Women-USNC LA with the support of Women in Cities International, this survey aims to evaluate the everyday experiences of women in public streets, public spaces and transit systems. The information you provide will help us design safer, more equitable cities for all.

The survey will be open until January 31th, 2018, and should take 5-10 minutes to complete. All answers will be kept strictly anonymous. If you share the survey link with the hashtag #urbandesign4women on Facebook, Instagram or Twitter, you will be entered for the chance to win a fabulous prize!  Please share this survey freely. Please get in touch with us at with any questions you may have about the survey.

Slow Streets UrbanDesign4Women Twitter Chat Flyer 2018-01-11

We launch our survey with a Twitter Chat on Thursday, January 11, 2018 at 12pm @UNWomenLA with partners @SlowStreets and @GreenOurWalls and under the hashtag #UrbanDesign4Women. We look forward to your insights to the conversation.

Please feel free to help us get the word out about the survey and Twitter chat!  Included below are tweet examples you could share with your followers.

We look forward to chatting with you!  


Join @UNWomenLA @GreenOurWalls & @SlowStreet  on Thursday January 11, 2018 for #urbandesign4women Twitter chat! Let’s discuss how we can make our communities safer for women and girls.

PARTICIPATE and SHARE the Follow @UNWomenLA twitter chat w/partners @GreenOurWalls @SlowStreets to discuss how we can make our communities safer for women and girls. #urbandesign4women

Did you know that you can win a fabulous prize and make a difference in our communities? Take and share this Women Mobility survey #urbandesign4women



It’s official, Slow Streets is incorporated!

Exciting news today, Slow Streets has officially been incorporated! We look forward to proudly serving cities to develop communities, transportation networks and street designs that are focused on people and their everyday experience. For more information please do not hesitate to contact Slow Streets at We look forward to hearing about your dreams.

Darren Proulx P.Eng M.Urb – Managing Principal and Founder

Slow Streets Logo_Interlaced.png

Consulting Services

Slow Streets Public Life Observations and Design Consulting

Slow Streets offers public life behavioural observation and street design consultation firm. Working with Slow Streets is a great investment because not only would you benefit from the expertise from an experienced city planning engineer but you would receive high quality and results-driven customer oriented service. Working with Slow Streets is critical for vibrant, economically sustainable cities because you will see an increase in the return on your investment such as increased rates of cycling, walking and transit, improved retail business success and improved public spaces.

Click here to read a review of our work.

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Better tax math: Build more infill to lower taxes

By Darren Proulx

Now that the Edmonton Election is underway, a critical conversation that should be discussed is how to make the city financially sustainable. Currently the city is approving large swathes of low density single family housing developments past the Anthony Henday. Is this a financially sustainable strategy for the city to be pursuing?

According to Strong Towns’ Charles Marohn, approving and building new green field developments is a ponzi scheme. Why? Often cities approve new greenfield developments to generate new revenue through property taxes and development levies. The revenue generated from these developments do not actually go towards funding the services needed for the developments being approved. These revenues often go towards funding necessary services in already developed or aging neighbourhoods elsewhere in the city. Eventually when the infrastructure serving these new neighbourhoods starts to deteriorate at the end of their lifecycle new greenfield neighbourhoods will have to be approved to fund the necessary maintenance and upkeep.

Is there a way to determine what is financially productive and sustainable for the city coffers? According to Joe Minicozzi cities need to change their city making math. Often cities look at the revenue potential for developments from a lump sum perspective. With this approach a Walmart big-box store style development often becomes more attractive for city councils. This approach completely neglects how efficiently these developments are using land, which is a city’s most valuable resource. When you look at the potential tax revenue generated from developments based on the land area being used the math changes.

New Edmonton 2015 property tax density
Edmonton’s 2015 property tax per square feet

Calculating the property tax generated per land area (tax density) demonstrates that those big box stores among single dwelling developments are producing some of the lower taxes densities for developments in Edmonton. When single dwelling households and the big box stores are producing some of the lowest tax returns on developments, should the City of Edmonton continue to approve them? Edmonton can ultimately change the tax burden on all Edmontonians by correcting the city building math and building the type of developments that produce the highest return on investment using the smallest foot print.

New Edmonton 2015 downtown property tax density
Edmonton’s 2015 property tax per square feet

So what is producing the highest tax density? Zooming in on the tax density map reveals that the majority of properties generating the highest tax densities are in the city centre. To be more specific the highest tax density generating properties tend to follow the streets that follow Edmonton’s historic street car lines. These include streets like 124 Street, Whyte Avenue, Jasper Avenue, 107 Avenue, 97 Street and 118 Avenue.

retail street edmonton example
An example of the type of building that produces a higher tax density for the city.

What do these developments look like? Often they are 2-4 storey properties with a short frontage. These are also the buildings where you find most locally owned businesses operating from, due to the smaller square footage and therefore more affordable leases.

2015 Edmonton Property Tax density comparison

What about housing? What is producing the highest tax density for the city? On the lower end one unit dwellings like single dwelling housing are producing on average $4.3 per square meter. Meanwhile 4 story multi-unit walkups like in the photo above produce over double the property tax per square foot ($10.5/sqm). Almost any development type that has more than one unit per property would generate more taxes per square meter.

Why does this matter? When cities are looking balancing budgets to pay for necessary services, amenities and create vibrant neighbourhoods, any business owner would look to accomplish this in the most efficient way as possible. Building more units per development site translates into the city generating more property taxes per square meter. The more property taxes the city generates from the same area translates into reducing the amount of property taxes everyone collectively has to pay. In addition to this it means that the city can service more people with the same infrastructure which lowers the cost for everyone. If the city of Edmonton builds more strategic and denser developments, the tax burden is reduced for everyone.

quaduplex edmonton

Often there are protests about the appearance of the developments being built as people feel that they do not fit in with the existing neighbourhood characteristics. The westmount development in the photo above has 3 units however it maintains the appearance of the surrounding neighbourhood. It looks like a larger house, however it houses three separate units.

Using Cycling to Build a More Social City

By Darren Proulx

The difficulty of meeting friendly people in a city is a subject that often surfaces in news headlines. Why is this such an important topic? Depression and loneliness are becoming more prevalent issues each year. What can be done to counteract this? One of the key factors attributed to your happiness is the quantity and quality of social interactions you experience. So we know one of the ways to improve your happiness is to have more social connections. What, then is preventing us from forming more social connections, especially in cities with higher rates of loneliness and depression?

livable_streets donald appleyard
Donald Appleyard’s Livable Streets Social Connections with Neighbours with Varying Vehicle Volumes. People interact with fewer of their neighbours on streets with higher vehicle volumes.

While there are numerous factors, car oriented developments are certainly one factor. One study by Donald Appleyard evaluating different streets in San Francisco with varying levels of vehicle volumes found that people were more connected with their neighbours when the vehicle volumes were lower. Why would this be? Vehicles generally bring with them noise and pollution, which makes it uninviting to be outside. In these sort of environments you simply want to travel along the sidewalk and get into your home as quickly as possible. Furthermore when the only the affordable housing option being built are houses where it is easy to drive into your garage without ever needing to interact with your neighbours, it is easy to see why it is hard to make social connections in these cities. On the other hand inner city neighbourhoods that offer the most potential for meeting more people are more expensive and overrun with cars due to wayward transportation engineering since the 1950’s. Bringing down the cost of housing requires building more housing supply and policy changes, both of which are crucial but longer term courses of action.

Montreal protected cycling lane
People cycling on a protected cycling lane in Montreal.

Is there a way to balance out the higher cost of inner city living while increasing the opportunities of social interactions quicker? Cycling should be part of the answer. Cycling is an efficient and quick way for travelling around the city when it is convenient, safe and comfortable. Most trips are under 5 kilometers, which is at most 20 minutes by bicycle. Bicycles emit no noise and no toxic fumes. With cycling cities can be built at a human speed and scale. With a city built around cycling people are offered a chance to mingle with their neighbours again since their street is comfortable enough to let them.

Amsterdam and Utrecht have a 60% cycling trip mode share in the city centre

What exactly do social interactions look like in a city that is built around cycling and not the car? Places like Amsterdam and Utrecht paint a pretty good picture with 60% of trips in the city centre by bicycle.

mother and father cycling with baby Amsterdam vondel park edited
A family and their child cycling together in Amsterdam.

Imagine the intimate moments you could have with your child with them sitting right in front you. Your child has a front seat to life instead of the back seat of a car. Imagine not having to buy a car seat and worry about your child’s safety. Imagine the excitement and giggles as your child gets to experience the wind, the smells, colours and people. You get to be right there for all of that.

Man’s best friend going for a ride.

Building a city at the human speed makes it easier to take your best friend for a ride.

utretch main retail street cycling edited
A main retail street in Utrecht. Prioritizing cycling provides an opportunity for people to socialize while cycling but also allows those sitting at patios to hear each others and socialize.

Can you remember the last time you sat on a patio on a main street in your city. Do you remember how loud it was? Could you have a conversation with the person you were with? Without yelling? A city built around cycling can also help build a social city by reducing the noise levels produced by cars and letting you have a conversation with your friends on a patio without shouting. 

Cycling also builds a more social city because it is easier to view, watch and interact with other people because you can actually see them. A city built around cycling means that people are not encased in a metal box. It is also easier to stop for spontaneous chats or shopping since you do not have to find parking for your car.

Utrecht street soccer
In a city that prioritizes cycling, extra road space becomes a children’s playground.

Creating a city prioritizing cycling, walking and transit allows our children to reclaim our city streets for play. This makes it easier for parents as they don’t have to drive them to the nearby park. Rather in a city that prioritizes cycling often a child’s imagination and their local street is enough to keep them entertained. This doesn’t mean that there isn’t a place for cars but rather that you lower the speed and volume of cars to a humane experience.

Montreal lane replaced with public seating
In Montreal (a city with higher than average cycling mode share) a travel lane was replaced by a parklet with public seating.

Cars are also space hogs, it takes up alot of space to move and store them. In a city prioritizing cycling, the extra space freed up can be transformed into public spaces or patios which can provide more free opportunities to gather and meet your friends.

Utrecht kid cycling alone to sports practice
A city built around cycling means autonomy for children. Autonomy to navigate the city safely on their own to their sports practices. When time is our most valuable resource, parents are relieved of their second job as a chauffeur.

Imagine a city so safe for cycling that your child can get to their sports practice on their own steam. Imagine the time you would save not chauffeuring your children around everywhere. A city built around cycling makes it easier for children to see their friends without needing to wait for a ride from mom or dad. For parents, a cycling city means more free time for to relax or spend quality time with friends and family.

Child waiting to cross the street vancouver

You shouldn’t have to put your life in danger the moment you take a foot off the sidewalk. Slowing a city down to a human cycling or walking speed allows us to bring out our sociability and happiness and create a more equitable and dignified city for everyone regardless of how they get around.

Cycling doubled in Edmonton immediately following the opening of the downtown bike lane grid.

Now the big question, does it take much to reorient and rebuild your city around cycling? While cities like Amsterdam, Copenhagen and Utrecht have high rates of cycling, it also took them 40 years to make the transformation. However, cities like Calgary and Edmonton have shown that entire networks of protected cycling lanes can be implemented relatively inexpensively and extremely quickly. The turn around for Edmonton’s 6 km downtown bike lane grid (which I was involved with) took less than a year from September 2016 to July 2017. The return on investment is almost immediate. Cycling in Edmonton nearly doubled after the first month after the bike lane network was opened, meanwhile cycling grew by 39% in Calgary.

Downtown Bicycle Trips Chart 2017
The number of cycling trips in Calgary grew 39% immediately after opening the grid of bike lanes in downtown Calgary in 2015.


Slow Streets is Visiting the Netherlands – 2017



Slow Streets principal and co-founder Darren Proulx will be venturing across the ocean to the cycling capital of the world once again in 2017. Previously Darren visited Amsterdam in 2015, you can read a summary of his observations here. The itinerary this time includes:

  • Utrecht – April 1-3
  • Rotterdam – April 3-5
  • Amsterdam – April 5-10

Utrecht is quickly becoming know as a leader in implementing the latest best practice cycling designs, and given its smaller size this would provide a good case study for mid-size cities. Rotterdam was selected because of its similarities to a North American context with large road right-of-ways and modern buildings and a lower cycling rate (25% is lower relative to the rest of Netherlands) which would provide a good case study for North American design and how people cycling interact with cars. Finally Amsterdam will provide good insight into both good dense mid-rise built form, protected intersections and large city all ages and abilities cycling network design. This visit will be focusing on identifying protected cycling lane best practice and next generation designs including but not limited to:

  • woonerf
  • cycle streets
  • protected intersections & protected intersections
  • cycling network design
  • cycling lanes on retail streets
  • economic performance of fine grain retail complete streets

If you are around in any of these cities please reach out as we would love to meet you!