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Infill started on the NE corner of 87th Avenue and 110th St.
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The real challenge are the root radius', not the trees.

Except other cities have done it, unless they have smaller root systems in those places. It's certainly not going to be feasible for all trees, but in many cases zero effort is made. In some cases some people have perserved some trees here.
 
Sometimes trees can be unhealthy and need to go as part of redevelopment.

I walked past this place in Ritchie - this house is coming down. The two trees in front close to sidewalk were taken down. Maybe one or both could have been left?

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I spoke a little while back with some of the opponents to the zoning bylaw and one proposal they were considering to limit the size of new developments was a tree bylaw similar to what exists in Vancouver. There, developers must protect trees unless the trees are diseases or similar affliction or they're directly in the way of the new structure. Construction has to work around the trees.
 
Pew reports that modern multifamily housing is much more fire-resistant than single-family housing (in the US, at least).

Modern Multifamily Buildings Provide the Most Fire Protection​

 
Pew reports that modern multifamily housing is much more fire-resistant than single-family housing (in the US, at least).

Modern Multifamily Buildings Provide the Most Fire Protection​

This was frustrating to read. It just says "1/6 the rate of fire death" over and over, burying the lede - which is the n value here.

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You can't make this kind of inference with a sample size this small. There are some good points made, but overall this is not a reliable indicator of anything.
 
This was frustrating to read. It just says "1/6 the rate of fire death" over and over, burying the lede - which is the n value here.

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You can't make this kind of inference with a sample size this small. There are some good points made, but overall this is not a reliable indicator of anything.
When testing the differences between two proportions, the relevant sample sizes are the denominators—the number of occupants—which are very large. Granted, in this case the occupants are not all independent from each other (because some of them live in the same building, or within the same jurisdiction with its own fire code, or the same climate with a certain fire risk...) but it's fair to assume that we're not lacking in statistical power here.
 
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I just tried out a quick power analysis and the power is basically equal to 1. (With the caveats above, as well as the usual caveats about doing a power analysis post hoc.)
 
When testing the differences between two proportions, the relevant sample sizes are the denominators—the number of occupants—which are very large. Granted, in this case the occupants are not all independent from each other (because some of them live in the same building, or within the same jurisdiction with its own fire code, or the same climate with a certain fire risk...) but it's fair to assume that we're not lacking in statistical power here.
How is the number of occupants the relevant denominator, rather than the number of fires? If one guy dies in a post-2000 townhome, that's 5% of the total fatal incidents.
 
How is the number of occupants the relevant denominator, rather than the number of fires? If one guy dies in a post-2000 townhome, that's 5% of the total fatal incidents.
Because that headline result is not that fewer people died per fire (although it's about the same in both categories—about 1.15-1.2), but that fewer people died period, mostly because there was a lower rate of fires. This means the relevant denominator is "how many people were living in each kind of housing?". To catch up to the same overall death rate, there would need to be 80-90 more fires in newer multifamily homes, which is a few times more than the number there actually were. That seems very, very unlikely to be a chance fluctuation. So if you live in newer multifamily housing, you were considerably less likely to die in a fire than if you live in (newer or older, but especially older) single-family housing.
 

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