Follow this tag to curate your own personalized Activity Stream and email alerts.
Satellite images dating back to 1975 allow researchers to map how millions of cul-de-sacs and dead-ends have proliferated in street networks worldwide. [...]
A new study published in the Proceedings of the National Academy of Sciences charts a worrying global shift towards more-sprawling and less-hooked-up street networks over time.
— CityLab
The study's authors, Christopher Barrington-Leigh at McGill University and Adam Millard-Ball at UC Santa Cruz, were able to identify the global trend toward urban street-network sprawl by analyzing high-resolution data from OpenStreetMap and satellite imagery of urbanization since 1975 and then... View full entry
Now SB 50 allows cities two years to adopt their own plans to achieve the bill’s central goal, which is to greatly increase the amount of market-rate and affordable housing built near transit and job centers [...] without increasing car travel or concentrating the new homes in low-income areas while leaving more affluent areas untouched. — The Los Angeles Times
Writing in The Los Angeles Times, opinion columnist Kerry Cavanaugh highlights some of the recent changes made to proposed legislation from California State Senator Scott Wiener of San Francisco. Wiener's SB 50 measure is a statewide densification initiative that's been a work in... View full entry
About 450 houses have been sold so far at Riverstone and 73 at Tesoro Viejo, which already has a school (Hillside Elementary) plus a cafe and fire/sheriff’s substation in its fledgling “town center.” Together, these “master-planned communities” along with other proposed developments with names like Gunner Ranch West, North Shore at Millerton and TraVigne form what Madera County officials project will be a city of 120,000 people. — The Fresno Bee
California's urban housing crisis, fueled by lackluster housing production in the state's population centers, is fueling sprawl that is eating up wilderness and agricultural land around cities like Fresno. Madera County supervisor Brett Frazier told The Fresno Bee, “The assumption was this... View full entry
The link between property and transport has been perhaps the most durable in human history.
Since the ancients, few things have delivered higher land values with more certainty than advances in transport, from roads to canals, railways to highways. [...]
But now, the dawn of the driverless car—promising a utopia of stress-free commutes, urban playgrounds and the end of parking hassles—threatens to complicate the calculus for anyone buying property.
— Bloomberg
Bloomberg Technology explains how the real estate industry is already preparing for all that sweet, sweet valuable space to open up for development once the widespread arrival of driverless vehicles makes parked cars — and the blocked square footage they occupy — a thing of the past. View full entry
It’s 2027 (or 2037) and the age of the self-driving car. City-dwellers have traded in their car keys for ride hails. Street parking has been replaced by wider sidewalks and bike lanes, while developers are busy converting garages into much-needed housing.
That’s one vision of how self-driving cars will affect U.S. real estate, laid out in a report by MIT’s Center for Real Estate. But it’s not the only one.
— bloomberg.com
"Even as reclaimed parking spaces fuel a downtown building boom," Bloomberg reports, "autonomous vehicles will encourage builders to push deeper into the exurban fringe, confident that homebuyers will tolerate longer commutes now that they don’t have to drive, according to the report [...]."... View full entry
If Mr. Ratti’s projections are correct, and self-driving cars can radically reduce traffic without cannibalizing existing mass transit—the hypotheticals pile up—it is possible that self-driving cars will make many cities livable in a way they aren’t now. Imagine if every U.S. city had a hybrid public-private mass-transit system on par with those in New York City or Washington, D.C., comprised entirely of self-driving vehicles. — wsj.com
Related stories in the Archinect news:Would self-driving cars be useful to people living outside urban cores?The "algorithmic dreams" of driverless cars, and how they might affect real-world urban designHow prepared are American cities for the new reality of self-driving cars? View full entry
Last month, the journal Science published a special issue examining the challenges and opportunities of an urbanizing world. Titled “Urban Planet” and featuring an image of clouds wafting across skyscrapers in Dubai, the issue opened with an eye-catching statistic: “More than half of the world’s people now live in cities.”
Of course, that number would be even more impressive if it were actually true.
— UNDark
According to the article, the statistic that half the world's population lives in cities is misleading. Many of these people live in towns and small urban enclaves, not the bustling metropolises conjured by the stat.The author argues that such thinking makes one overlook sprawling fringe... View full entry
This year, Chinese families represented for the first time the largest group of overseas home buyers in the United States. Big spenders on new homes are helping prop up local economies in the Midwest...The interest from Chinese buyers is reshaping demographics in Texas. — NYT
As Part II of a series of articles exploring how China's financial heft and economic clout influence the world, Dionne Searcy and Keith Bradsher illuminate how Chinese real-estate investors are driving prices and development not just for "luxury condos in Manhattan and McMansions in Silicon... View full entry
Our ability to form and maintain friendships is shaped in crucial ways by the physical spaces in which we live. [...]
in America we have settled on patterns of land use that might as well have been designed to prevent spontaneous encounters, the kind out of which rich social ties are built. [...]
We do not encounter one another in cars. We grind along together anonymously, often in misery.
— vox.com
More on the repercussions of sprawl:Urban sprawl costs the American economy more than US$1 trillion per yearThe true costs of sprawlSeven Myths About New UrbanismWhy sprawl may be bad for your health View full entry
What's interesting about these 27 categories that Wheeler has defined, covering the full range of development patterns in two dozen metropolitan regions he has studied worldwide, is that most of them are new. [..]
"We have had an explosion of different types of built landscapes in the last century," says Wheeler, who is working on a book about these patterns.
— washingtonpost.com
An example of the patterns identified by Stephen Wheeler, professor at UC Davis' Department of Human Ecology, culled from meticulous work with Google satellite imagery:You can view more of his maps here. View full entry
Most Egyptians have always lived in the fertile stretch along the Nile, the nation’s breadbasket which accounts for less than 10 per cent of Egypt’s territory. But urban growth has become the chief threat to agricultural land as farmers haphazardly – and illegally – build new houses to make room for the next generation.
Construction surged even more amid a security vacuum that followed the 2011 popular uprising that ousted the country’s long-time autocrat, Hosni Mubarak.
— thenational.ae
Related:Photographer documents Egypt's monumental housing developments in the desertA New "Capital" for Cairo?A closer look at the Giza 2030 master plan: blessing or curse for Egypt? View full entry
A new analysis authored by Todd Litman at the Victoria Transport Policy Institute concludes that sprawl costs the U.S. economy more than $1 trillion every year. [...]
The optimal density Litman uses in the report is only about 23 people per hectare. Add those 2.2 billion people to global cities at a density of about Atlanta, and we'd need the equivalent of all the land in India to accommodate them.
— washingtonpost.com
Previously: The true costs of sprawlHere's a direct link to Todd Litman's study Analysis of Public Policies that Unintentionally Encourage and Subsidize Sprawl. View full entry
How much more does it cost the public to build infrastructure and provide services for sprawling development compared to more compact neighborhoods? A lot more, according to this handy summary from the Canadian environmental think tank Sustainable Prosperity.
To create this graphic, the organization synthesized a study by the Halifax Regional Municipality [PDF] in Nova Scotia, and the research is worth a closer look.
— streetsblog.org
A new study by Thomas Laidley, a sociology doctoral student at NYU [...], uses satellite images to develop a new and improved “Sprawl Index,” which he links to a wide range of outcome measures.
Perhaps the biggest surprise is that L.A. ranks as the least sprawling metro in the country, ahead of New York and San Francisco.
— citylab.com
Previously:Southern California not so sprawling after allThe U.S. Cities That Sprawled the Most (and Least) Between 2000 and 2010 View full entry
The massive Beltline and an impressive grid of protected lanes that will connect the trail system to key urban destinations are poised to remake transportation in the city that anchors the country's ninth-largest metro area. [...]
As the video above shows, Atlanta's embrace of active space is part of a psychic shift in a city that's shaking off its old Sprawlville USA image with a combination of bike, transit and affordable housing infrastructure.
— peopleforbikes.org
Similar bike-friendly development is underway in the South's other notorious mega sprawl metro area, Houston: The Bayou Greenways Plan: A Game-Changer for Houston? View full entry
