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Study suggests high-mileage light-duty fleets contribute higher emissions and emissions share than expected

Green Car Congress

A study by researchers from the University of Denver and the University of Puget Sound indicates that high-mileage light-duty fleets contribute higher emissions and emissions share than expected based on their actual numbers in the fleet. In their study, Bishop et al. —Bishop et al. Bishop, Donald H. Stedman, Daniel A.

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NREL study focuses on growing use and impacts of ride-hailing services at airports

Green Car Congress

In a new study, NREL researchers focused on the key observability aspects of new modes and the rate of shifts in mobility patterns across airports in the regions of San Francisco, Portland, Denver, and Kansas City—all US DOT Smart City Challenge finalists. —Josh Sperling, NREL co-author. —Alejandro Henao, NREL postdoc.

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Junkyard Find: 1978 Chrysler LeBaron Coupe

The Truth About Cars

Here's one of those cars, found in a Denver boneyard recently. The two-door was a credibly rakish personal luxury coupe for its time, and probably cannibalized some sales from the Cordoba. This generation of LeBaron was sold for the 1977 through 1981 model years, and it was available as a coupe, sedan and wagon.

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Aclima partnering with Google to map outdoor air quality with Street View vehicles

Green Car Congress

As a pilot, in August 2014, Aclima instrumented three Google Street View vehicles to perform a month-long system test in the Denver metro area during the DISCOVER-AQ study conducted by NASA and the US Environmental Protection Agency (EPA). Sample output from the Denver pilot. Click to enlarge. —Dan Costa, Sc.D.,

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Study finds 2008 recession contributed to increase in age of US LDV fleet, slowing of emission reductions

Green Car Congress

The global economic recession of 2008—which severely depressed light-duty vehicle sales—resulted in an increase in the age of the light-duty vehicle fleet in the US that likely slowed the rate of decrease of fleet average emissions, according to a study by Gary Bishop and Donald Stedman at the University of Denver.

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A Critical Look at AI-Generated Software

Cars That Think

In 2005, faulty software for the US $176 million baggage-handling system at Denver International Airport forced the whole thing to be scrapped. Then, given a prompt from a person, they use a probabilistic approach to generate new text. Consider just a few of the more well-known software failures of the past two decades.

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The New Supersonic Boom

Cars That Think

Piloting the bullet-shaped Bell X-1 rocket plane in 1947, Chuck Yeager became the first person to exceed the speed of sound while in horizontal flight. The best-funded of this group is Denver-based Boom Technology (which also goes by the trade name Boom Supersonic). Everett Collection/Alamy.