Figure 1 - Energy Intensities of Passenger Modes: 1980-1999
Monday, September 10, 2012
Figure 1 - Energy Intensities of Passenger Modes: 1980-1999
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KEY: Btu = British thermal units.
SOURCE: Stacy C. Davis, Transportation Energy Data Book, Edition 21 (Oak Ridge, TN: Oak Ridge National Laboratory, 2001), tables 2.11 and 2.12.