
The following diagrams were taken from LSE’s Urban Age website. I’ve sorted them from lowest to highest peak residential population density. In each case I’ve also included the year of the dataset.

The following diagrams were taken from LSE’s Urban Age website. I’ve sorted them from lowest to highest peak residential population density. In each case I’ve also included the year of the dataset.

The following diagrams were taken from LSE’s Urban Age website. I’ve sorted them from lowest to highest peak residential population density. In each case I’ve also included the year of the dataset.
It’s amazing how much these simple extrusion diagrams can tell you about the city. It also shows you that high population densities don’t necessarily need to equate to tall buildings. Barcelona, in particular, stands out for me.
Berlin (Peak residential density: 21,700 people/km2, 2009)

Stockholm (Peak residential density: 24,900 people/km2, 2012)

London (Peak residential density: 27,100 people/km2, 2013)

São Paulo (Peak residential density: 29,380 people/km2, 2009)

Mexico City (Peak residential density: 48,300 people/km2, 2009)

Barcelona (Peak residential density: 56,800 people/km2, 2013)

New York (Peak residential density: 59,150 people/km2, 2012)

Shanghai (Peak residential density: 74,370 people/km2, 2011)

Istanbul (Peak residential density: 77,300 people/km2, 2013)

Hong Kong (Peak residential density: 111,100 people/km2, 2013)

Mumbai (Peak residential density: 121,300 people/km2, 2013)


Last night when I was thumbing through Twitter before bed, I came across this blog post describing Vancouver’s land use types. The blog itself is called Mountain Doodles, but it’s not exactly clear who the author is.
In any event, what she/he did was analyze Vancouver’s land use dataset to come up with a series of charts that break down the percentage of each type: residential single detached, residential low-rise apartment, commercial, green space, and so on.
Here’s what the chart looks like for Metro Vancouver:

And here’s what it looks like for just the City of Vancouver, proper:

When you look at the metro area, green / open space dominates. Although, the author states that, given the dataset, there could be a small overstatement of green space. There’s also the question of where the overall boundary was drawn.
When you look at only the City of Vancouver, it’s land for residential housing (detached and duplex) and roads that dominate, with green / open space coming in a somewhat distant third.
Of course, this does not speak to the intensity in which any of the above land might be used, such as the apartment lands (i.e., the third dimension). But from a two-dimensional perspective, you certainly get a sense of what we – for better or for worse – have chosen to privilege.
The area that stretches between the property line on one side of a street and the property line on the other side of a street is called a public right-of-way here in Toronto. It may be called something different in other cities and countries.
In the example below (taken from Toronto's Avenues & Mid-Rise Buildings Study), it includes the sidewalks, the car lanes, and the streetcar lanes. But it could also include other public elements. In this instance, the buildings on either side of the street are assumed to be built right up against their property lines.
ROWs obviously serve an important public function. But their size also has important urban design implications. As a pedestrian, it feels different to walk on a narrow street than it does on a broad street.
The width of a ROW can also be used to inform what the preferred height of the buildings along it should be. In the example above, they’re talking about a 1:1 relationship between the width of the ROW and the preferred height of the buildings.
Given their importance, I thought it would be interesting to share this map of Toronto (dated 2010) showing ROW sizing throughout the city. The mustard colored lines in the core of the city represent 20 metres, the red lines 36 metres, and the purple lines 45 metres or more. The rest of the colors fall somewhere in-between. For the most part, the purple lines represent highways, although there are a few other instances of purple.
What’s interesting – but not surprising – to see is how we basically kept expanding the size of our ROWs as Toronto grew outwards. This was obviously to make more room for cars on the road.
But the other, perhaps more interesting thing about this map, is that it could also serve as a guide to pedestrian happiness. The mustard/yellow lines are where it’s most enjoyable to walk. And the red and purple lines are where it’s least enjoyable to walk.
If you’re from Toronto, give this framework a try and see if it holds true.
It’s amazing how much these simple extrusion diagrams can tell you about the city. It also shows you that high population densities don’t necessarily need to equate to tall buildings. Barcelona, in particular, stands out for me.
Berlin (Peak residential density: 21,700 people/km2, 2009)

Stockholm (Peak residential density: 24,900 people/km2, 2012)

London (Peak residential density: 27,100 people/km2, 2013)

São Paulo (Peak residential density: 29,380 people/km2, 2009)

Mexico City (Peak residential density: 48,300 people/km2, 2009)

Barcelona (Peak residential density: 56,800 people/km2, 2013)

New York (Peak residential density: 59,150 people/km2, 2012)

Shanghai (Peak residential density: 74,370 people/km2, 2011)

Istanbul (Peak residential density: 77,300 people/km2, 2013)

Hong Kong (Peak residential density: 111,100 people/km2, 2013)

Mumbai (Peak residential density: 121,300 people/km2, 2013)


Last night when I was thumbing through Twitter before bed, I came across this blog post describing Vancouver’s land use types. The blog itself is called Mountain Doodles, but it’s not exactly clear who the author is.
In any event, what she/he did was analyze Vancouver’s land use dataset to come up with a series of charts that break down the percentage of each type: residential single detached, residential low-rise apartment, commercial, green space, and so on.
Here’s what the chart looks like for Metro Vancouver:

And here’s what it looks like for just the City of Vancouver, proper:

When you look at the metro area, green / open space dominates. Although, the author states that, given the dataset, there could be a small overstatement of green space. There’s also the question of where the overall boundary was drawn.
When you look at only the City of Vancouver, it’s land for residential housing (detached and duplex) and roads that dominate, with green / open space coming in a somewhat distant third.
Of course, this does not speak to the intensity in which any of the above land might be used, such as the apartment lands (i.e., the third dimension). But from a two-dimensional perspective, you certainly get a sense of what we – for better or for worse – have chosen to privilege.
The area that stretches between the property line on one side of a street and the property line on the other side of a street is called a public right-of-way here in Toronto. It may be called something different in other cities and countries.
In the example below (taken from Toronto's Avenues & Mid-Rise Buildings Study), it includes the sidewalks, the car lanes, and the streetcar lanes. But it could also include other public elements. In this instance, the buildings on either side of the street are assumed to be built right up against their property lines.
ROWs obviously serve an important public function. But their size also has important urban design implications. As a pedestrian, it feels different to walk on a narrow street than it does on a broad street.
The width of a ROW can also be used to inform what the preferred height of the buildings along it should be. In the example above, they’re talking about a 1:1 relationship between the width of the ROW and the preferred height of the buildings.
Given their importance, I thought it would be interesting to share this map of Toronto (dated 2010) showing ROW sizing throughout the city. The mustard colored lines in the core of the city represent 20 metres, the red lines 36 metres, and the purple lines 45 metres or more. The rest of the colors fall somewhere in-between. For the most part, the purple lines represent highways, although there are a few other instances of purple.
What’s interesting – but not surprising – to see is how we basically kept expanding the size of our ROWs as Toronto grew outwards. This was obviously to make more room for cars on the road.
But the other, perhaps more interesting thing about this map, is that it could also serve as a guide to pedestrian happiness. The mustard/yellow lines are where it’s most enjoyable to walk. And the red and purple lines are where it’s least enjoyable to walk.
If you’re from Toronto, give this framework a try and see if it holds true.
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