However, based on the comparison of countries with more and less fuel-efficient fleets, Noland [43] showed that changes in vehicle fuel efficiency are not associated with changes in traffic fatalities.
Northwest has one of the oldest, least fuel-efficient fleets in the airline industry.
Budget airlines pack more passengers on each flight and typically have younger, more fuel-efficient fleets than longer-established airlines.
The resolution also encourages the town to offer lower license and permit fees to companies -- taxi owners, for example -- that use cleaner, fuel-efficient fleets.
Having fuel-efficient fleets would also protect US automakers the next time gasoline prices spike and demand for economic cars rises, as it did in 2008.
Sales in Europe and North America will largely be driven by the need to replace older, less fuel-efficient fleets, as well as by the continued expansion of low-cost carriers, which currently represent about a fifth of all seats sold.
The chairman and chief executive of Ford Motor told the annual shareholder meeting that soaring gasoline prices may have one benefit: They could help create fuel-efficient fleets at America's automakers.
Select a full flight on a large plane in a fuel-efficient fleet.
Michael Woloz, a spokesman for the Metropolitan Taxicab Board of Trade, the main group behind the lawsuit, said that his group supported a more fuel-efficient fleet.
However, unless the auto industry believes that a fuel-efficient fleet is marketable, the $100 million effort could produce nothing more than a couple of eco-Humvees for celebrities.
Upfront investments in a younger, more fuel-efficient fleet, coupled with snazzy new design features – such as blended winglets and zonal driers – resulted in a 15% saving on fuel use (and, thus, carbon emissions) between 2007 and 2011.
