table of contents - Research and Innovative Technology ...

Miles per gallon
30
25
20
15
10
5
B
B B B B B B B B B B B B B B
B
B
B
B B B B
B
B B
J
J J J J J J J J J
J
J J J J J J J J J J J J J J
H H
H
H
H
H
H
H H H H H H H H
H
H H
H H
F F
F F F F
F F F F F F F F F F F F F F F F F F F
0
1970 1975 1980 1985 1990 1994
Chapter 4 Energy and Transportation � 93
FIGURE 4-5: LIGHT-DUTY VEHICLE FUEL ECONOMY, 1970–94
B
J
H
F
New automobile
On-road auto
New light truck
On-road light truck
NOTE: Estimation methods were revised in 1995, making estimates for 1993 and 1994 inconsistent with the historical series.
SOURCES: J.D. Murrell et al., Society of Automotive Engineers, “Passenger Car and Light Truck Fuel Economy Trends Through
1980,” SAE Technical Series 800853, 1980; J.D. Murrell et al., Light-Duty Automotive Technical and Fuel Economy Trends
Through 1993, EPA/AA/TDG/93-01 (Ann Arbor, MI: U.S. Environmental Protection Agency, 1993); U.S. Department of Transportation,
National Highway Traffic Safety Administration, Automotive Fuel Economy Program, 19th Annual Report to Congress,
Calendar Year 1994 (Washington, DC: 1995).
Miles per gallon
6.5
6.3
6.1
5.9
5.7
5.5
5.3
5.1
4.9
4.7
4.5
H
H
FIGURE 4-6: SINGLE-TRAILER COMBINATION
TRUCK FUEL ECONOMY, 1973–92 (BY MODEL YEAR)
H H H
HJ
H
H
J J
HJ
J J
B
J
B
J
B
J
B B
B B
1973 1975 1977 1979 1981 1983 1985 1987 1989 1991
B
B
Study year
B 1992
J 1987
H 1982
SOURCE: U.S. Department of Commerce, Bureau of the Census, “Truck Inventory and Use Survey,” 1982, 1987,
and 1992.