Source: BTS, National Transportation Statistics.
Energy Consumption by Road Transportation in the United States,
1970-2007 (in Trillion BTUs)
In terms of energy consumption by the road sector an important trend
concerns the enduring stability of energy being consumed by the automobile.
This is attributed to marginally better mileage but the most significant
explanation relates to a shift in consumers preferences towards sports
utility vehicles and other light trucks. This type of vehicle now accounts
for as much energy consumption than the automobile, while essentially
servicing the same type of mobility demand.