The PBS Newshour show yesterday had a long piece on Chicago's various measures in countering the urban heat island effect. One tangential tidbit I hadn't really been aware of: Chicago supposedly has more alleys than any city in the country -- 1,900 miles' worth.
Mr Downtown, cartographer extraordinaire, is this accurate? This says a lot about our urban layout, city beauty (garbage and garages and utility poles in rear, not in front), as well as land use (in-)efficiency -- for example, Los Angeles has significantly more land area and population than Chicago. Naturally that goes even more for NY, but presumably there even the outer boroughs were pretty much all laid out before the a-car-for-each-family era? Transcript - http://www.pbs.org/newshour/bb/clima...ate_10-09.html |
^Probably correct, though we should give props to Dallas, which has maintained the tradition of alleys all the way into the modern suburban era. Even in still-building suburbs out on the fringes, the mark of an upscale subdivision is that front-loaded garages are prohibited by deed restriction.
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Interesting. Suburbs get a bad rap but many of the newer subdivisions around Dallas and certainly out west are built at a density level only a bit lower than the Bungalow Belt, on 75x75 lots. If the interstitial spaces weren't so horrendous, and they used solutions like Dallas' alleys, they might be decent places for pedestrianism and transit.
Of course, you could argue that even the Bungalow Belt is too low-density and the transit ridership is high because of low incomes. :shrug: |
I'm certainly not citing the Dallas/Ft Worth Metroplex as an exemplar of urban development. Those new houses out in Allen or Mansfield are on large lots on unwalkable streets with no sidewalks, far from any shopping and really far from any big employers. The vast majority of the houses are ordinary suburban schlock. But because of local aesthetic preferences, the most exclusive subdivisions don't allow front-loaded garages, which means they still build alleys.
The "Disney streets" of North Dallas, developed in the 1970s: http://i45.tinypic.com/2v1rp5c.jpg A Plano subdivision from the 1990s: http://i45.tinypic.com/2vvrih0.jpg Brand new houses in McKinney, 30 miles from downtown Dallas: http://i47.tinypic.com/ju6z2d.jpg |
Right, and I don't see any difference on the block level between that and a typical neighborhood in the bungalow belt, other than the stylistic ones. You have shallower/wider lots, of course. But really, all the differences are macro planning issues... street layout, continuity of sidewalks, zoning/land-use plans.
There's been a lot of hand-wringing about McMansions, but it seems like the average middle-class suburbanite is living on a lot that's not much larger than the lot they would have occupied in 1952. Maybe I'm seeing things? |
^ Why don't you guys discuss that further in the "Dallas suburban residential development trends of the 20th and 21st century" thread?
Thanks |
The discussion could just as easily apply to Merrillville, Oswego or McHenry, but I see your point.
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A great example of why density does not equal walkability. Without businesses or civic institutions to walk to from these denser suburbs, the neighborhood remains car dependent, and the streets remain devoid of all but the social pedestrian. It might be possible to retrofit these suburbs, as many scholars have proposed, but until that becomes more than a few examples, I will continue to hitch my wagon to full fledged urban neighborhoods like those that make up the majority of the city of Chicago.
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Lynn Becker's review of the Logan Center for the Arts at U of C's campus:
http://www.lynnbecker.com/repeat/log...r_the_Arts.htm |
A good read, but it's about time something else requires a design critique...just saying.
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Even a bungalow belt neighborhood falls well under the density needed for transit service, unless it's sprinkled generously with small apartment buildings, garage apartments, and the like. |
Ah, I see... I was assuming unconsciously that street width was the same, which gave me a false point of reference.
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Scaffolding is up at the church at Armitage & Dayton. I forget, can we expect another cookie cutter Walgreen's, with all the design charm of an aspirin bottle?
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But still, it will never compare architecturally to the church that's there now... |
Wasn't this just announced a few weeks ago? These Walgreens guys don't mess around.
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I really doubt that alleys in general contribute that much more to the urban heat island effect, because if you have front loaded garages, the street needs to be wider to allow for vehicles to have a turning radius. There's not much difference in total paved areas, especially if the garages are right alongside the alley right of way. |
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