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Class Project Me/ENV 449, 2007 Louis Hsu Instructor: R. Husar

Carbon Footprint of the U.S. Population: Causes and Spatial-Temporal Pattern: Preliminary National Transportation Report. Class Project Me/ENV 449, 2007 Louis Hsu Instructor: R. Husar. Introduction. Purpose: organize and graph national transportation data for

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Class Project Me/ENV 449, 2007 Louis Hsu Instructor: R. Husar

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  1. Carbon Footprint of the U.S. Population: Causes and Spatial-Temporal Pattern:Preliminary National Transportation Report Class Project Me/ENV 449, 2007 Louis Hsu Instructor: R. Husar

  2. Introduction • Purpose: organize and graph national transportation data for • Number of Vehicles Registered, VR • Vehicle Miles Traveled, VMT • Passenger Miles Traveled, PMT • Freight Ton-Miles, FTM • Energy Intensity of Vehicles, EIV

  3. Conclusions • Major Findings • The spike in trucks registered in the ’90s was due to SUVs’ classification as trucks • Automobiles/passenger cars travel the most vehicle- and passenger-miles • Energy intensity of vehicles (measure in Btu/passenger-km) have been in a small downtrend since the ’60s

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