Mike Eliason Profile picture
Aug 25, 2021 16 tweets 6 min read Read on X
i don't see us making much headway on overheating in cities when we effectively have no solar protection industry outside of 'street trees'

businessinsider.com/heatwave-miami…
there's a whole ecosystem of solar protection in the EU that starts with first keeping solar gain from entering your window.

#FabricFirst

🧵 on how pathetic our options are here in the US, comparatively:
know what else exacerbates the urban heat island effect?

cars.

removing them from city centers is critical to not just reduce urban heat island effect - but also improve livability.
on top of removing space for cars in cities, we also need to invest heavily in blue-green streets. #SpongeCity

sieker.de/fileadmin/siek…
and of course this is very much related to the *massive* open space/green space disparity that exists in multifamily areas v. single family zoned areas

seattle evening temperatures v. zoning map (blue and orange is where multifamily housing is legal. green are parks)
building design also plays a large part of this.

some local developers have stated we don't need to design for extreme temps because the 'puget sound drops down to the 50s at night'

this is no longer true for most of summer. certainly wasn't true during the heat dome.
the layouts of most multifamily buildings in seattle - on top of being in warmer areas due to urban heat island effect - are double loaded corridor buildings (like left) with no ability to get a cross breeze w/ windows on multiple sides (like plan on right).
also you can tell the city takes this issue seriously because the rebate for heat pumps the city used to offer, no longer exists.

wheeee

kuow.org/stories/enviro…
does seattle even have a urban heat island strategy plan to mitigate urban heating?

vienna does. it even includes sections on climate sensitive urban planning.

we don't even have urban planning in this city - let alone climate sensitivity.

wien.gv.at/umweltschutz/r…
does your city take climate sensible urban planning seriously?

if they did, you might see things like this...

you might see subsidies for climate protection against overheating (like vienna's shading subsidy)

seattle's a city hellbent on ignoring realities of climate change
when was the last time any US city looked at urban morphology and effect on reducing urban heat island effect, for a project in planning?

i'll wait...
what about analyzing wind flows at night for a better climate analysis to start to inform mitigation...
or where daytime and nighttime overheating vulnerabilities lie - both today, and in a warmer future? freiburg.de/pb/site/Freibu…
from those analyses you could start to build a toolbox for further mitigating heat - and layer in water management as well. sh*t's all related.
geil. so so geil

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More from @holz_bau

May 20
will never understand why SDOT is so bad at planning and future-proofing for sustainable mobility

the dexter & thomas protected intersection is an expensive case study in how to prioritize cars instead of sustainable mobility, through poor planning
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and nearly every other intersection on dexter is an absolute sh*tshow

having one poorly planned protected intersection doesn't change that.

the poor network is the problem, and directly related to why seattle's bicycle mode share has remained a flat 3% for over 30 years.
if we actually made cars do what SDOT is making bicycles do at this intersection in more of the city - we might actually meet our vision zero goals

unfortunately, this design fails to prioritize sustainable mobility. the bike lane is too narrow, and not adaptable to higher usage
Read 4 tweets
Mar 24
thinking about how wildly different quality of new 1-BR units are in US v. germany...

seattle (l): double loaded corridor. 800 sf. 36' deep. windowless BR. 1 window (!)

munich (r): point access block. 650 s.f. windows for BR/bath, k/d/l. ~16' deep. + 110 sf balcony.
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that character carries through to the interior. radically different quality of living, of daylight, of privacy in many cases as well.

again, seattle (l), v munich (r)


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can you imagine a 1 bedroom apartment with light on 3 sides?!?

twinned point access block w/ units from 1-3BRs.
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Read 10 tweets
Mar 14
what is the cost of FAR wasted in townhomes?

30% of calc'd FAR of this back to back townhouse project is just... stairs

codes & regs & financing & poor construction quality make flats impossible at this scale

it's not insignificant. it's 1,300 s.f. Image
the opportunity cost of 4 separate townhomes over flats is basically an additional 3-BR unit.

imagine paying $850k for something like this - and knowing a third of your mortgage is just paying for stairs.

literally the dumbest sh*t i've seen in a minute.
this is exactly what harrell's comp plan is designed to induce.

it's not going to be affordable. it's not going to be accessible. it's going to continue to decimate biodiversity. it's going to reduce climate adaptation.

we're going backwards

Read 4 tweets
Mar 3
i've given a number of talks about how poor quality of life is in US multifamily housing, and it's a central theme of my book...

a >1,400 sf 2BR with only 2 windows and none in the common area and one bedroom home is a first.

this is where building codes are headed in the US. Image
double loaded corridors. no limitations on building depth. absurdly high FAR. 50' dead end corridors.

this is where the IBC is headed. multifamily housing in other countries doesn't look anything like this.

and mass timber doesn't fix this problem.
quality of life in multifamily homes should not be substantially lower than that of detached houses

yet that is *exactly* what US building codes induce.

it isn't like this in other countries.

without substantial change (legalizing taller point access blocks) it'll get worse
Read 12 tweets
Feb 23
car free streets. hundreds of businesses. how do they even survive?

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the answer?

early morning or late night deliveries

deliveries by bike, scooter or hand cart

density isn't limited to a block or two off the street but continues forever

no single family zoning

pedestrian priority

mixed use zoning

point access blocks w/ small footprints
we've eaten at several incredible places that have at most 10 seats

the abundance of buildings with minuscule footprints allow for a ridiculous amount of commercial diversity on ground floor (and above/below)
Read 11 tweets
Jan 4
i should do a thread on elevator to unit ratios in other countries...

i'll start with this one, just because it's pretty low:

basel (CH)
(8) elevators in (2) 3-story buildings, serving just 48 units.

elev to unit ratio: 1:6

baudokumentation.ch/projekt/wohnen…
the stunning swiss coop in this thread

basel (CH)
(12) elevators in (12) connected 5-story buildings, serving 125 units.

elev to unit ratio: 1:10.4

luca selva's wohnueberbauung densa park

basel (CH)

(8) elevators in (2) 5-story+ DG buildings, serving 99 units.

elev to unit ratio: 1:12.4

baudokumentation.ch/projekt/wohnue…
Image
Read 14 tweets

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