Asphalt
To Make Cities More Livable, Get Rid of Pavement
Paved surfaces take up close to a third of space in U.S. cities, polluting waterways and contributing to the urban heat island effect.
Hot Asphalt May Increase Air Pollution in Urban Areas
Research shows that road asphalt exposed to heat and sunlight may eventually become a significant emissions source.
The Undeniable Link Between Redlining and Extreme Heat in American Cities
The country’s history of racist and segregationist housing policies is affecting vulnerable low-income communities of color that are bearing the brunt of climate change impacts.
Las Vegas Faces a Challenging and Uncertain Environmental Future
Excessive heat will impact the desert city in the coming years, and major steps need to be taken now to change its course.
Sand: Another Victim of Global Urbanization
Headlined by vertical (and horizontal) sprawl in China, India, and elsewhere, the global building boom requires vast quantities of concrete and asphalt. And to get those materials, sand must be taken from the environment.
Omaha Stripped Away Pavement from Residential Streets, Controversy Ensues
Decades ago, developers installed sub-standard asphalt on residential streets in Omaha, with the understanding that residents, not the city, would maintain them.
The Latest Trend in Transportation Infrastructure: Un-Paving Roads
A recent study discovered that towns and cities around the country had removed the pavement on thousands of roads in the last five years.
Lacking Funds for Repair, Texas Unpaves its Roads
Unable to find funding to repair roads damaged by the booming oil industry traffic, Texas will convert asphalt roads to gravel. Texas's gas tax is among the lowest in the nation.
Could Colored Pavement Cool Our Cities?
More than a third of the land in our cities is covered by black asphalt, an exemplary heat trapping surface and major contributor to the urban heat island effect. Researchers at Lawrence Berkeley Lab are studying "cool pavement" alternatives.
Hard Road Ahead
Michael J. Coren has a preview of an MIT report that lays out the economic and environmental benefits of stiffer pavement.
Heat Islands May Not Be So Bad After All
Emily Badger reports on pioneering research that is looking into ways to utilize the heat trapping properties of asphalt, rather than fighting it.
A Perfect Storm For Bad Roads
Winter storms have combined with bad road engineering, geography, funding shortfalls and inequities in Sonoma County, California. drivers and cyclists can expect an unusually rough ride this year and more to come.
Towns Across The Country Let Their Paved Roads Return To Nature
"When counties had lots of money, they paved a lot of the roads and tried to make life easier for the people who lived out here," said Stutsman County Highway Superintendent Mike Zimmerman, "Now, it's catching up to them."
Depaving Rural American Roads-Literally
Rather than being part of a car liberation or permeable pavement movement, poorly maintained county roads are having their asphalt ground into gravel as a cost-cutting measure to avoid costly road reconstruction. Lack of funding is the cause.
Saving Money By Converting Asphalt to Gravel
In an effort to cut transportation maintenance costs, some cities are ditching their asphalt roads and going back to gravel.
Is Concrete the New Asphalt?
As oil prices rise, so does the cost of asphalt. Concrete, historically more expensive, is now becoming a viable cost competitor. Because of its lighter shade, its also been shown to contribute less to climate change.
Reconsidering Asphalt
Landscape architect Paula Meijerink is calling on designers to rethink asphalt, and she's taking her efforts to the streets.
Oil Prices Affecting Asphalt As Well, Creating Opening For Greener Roads
Asphalt is a byproduct of oil production, and so is getting more expensive along with rising oil costs. A $5 million research project is looking for greener solutions.
Alamo Area Metropolitan Planning Organization
City of Morganton
San Joaquin County
HUD's Office of Policy Development and Research
HUD's Office of Policy Development and Research
Chaddick Institute at DePaul University
Park City Municipal Corporation
National Capital Planning Commission
City of Santa Fe, New Mexico
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