Study finds that increased vehicle travel and decreased occupancy have undercut the impact of improving fuel economy over last 40 years
Green Car Congress
MARCH 6, 2013
persons), the occupant distance travelled increased by 84% (from 3.182 to 5.867 trillion km). Sivak found that while the vehicle fuel economy of the entire light-duty fleet improved by 40% (from 13 mpg US to 21.6 l/100km), because of the decrease in vehicle load, the occupant fuel economy only improved by 17% (from 24.8
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