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1 Teragrams of CO2 equivalent—1 TgCO2 Eq = 1 million metric ton of carbon equivalent x (44/12). A teragram = 1 trillion grams....
Excluding gas pipelines, all modes of freight transportation, combined, generated nearly 4 trillion domestic ton-miles in 2000, 20 percent more than in 1990. This represents an average growth rate of almost 2 percent per year during the decade [1].
Domestic...
There were an estimated 3.6 million highway-related injuries in the United States in 2001, according to data reported to the U.S. Consumer Product Safety Commission (CPSC)1 (see box) [1]. An estimated 3.3 million of these injuries involved motor vehicle...
National data on air emissions are estimated by the U.S. Environmental Protection Agency (EPA). EPA’s National Emissions Inventory (NEI) is updated annually and covers mobile, stationary, and area sources of pollution regulated under...
Transit authorities reporting to the Federal Transit Administration (FTA) provide the number of passengers who board public transportation vehicles rather than the number of passengers they serve. Passenger boardings...
Highway-related capital stock (highway infrastructure, consumer motor vehicles, and trucking and warehousing) represented the majority of the nation’s transportation capital stock, $2,166 billion in 2000 (in 1996 chained dollars1). Highway infrastructure...
The volume of freight carried by railroads increased 26 percent (in tons) and 30 percent (by carload) on railcars between 1991 and 2001 (figure 22). However, on average, the weight of each railcar remained fairly constant. The average weight of a loaded railcar ranged from 63...
Two national estimates of passenger-miles of travel (pmt) are available; they differ in coverage, methodology, and other factors. The 2000 pmt data presented in Section 2 come from the Bureau of Transportation Statistics (BTS)...
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NOTES: Amtrak data are not available prior to 1993. All dollar amounts are chained 1996 dollars. Current dollar amounts are available in appendix B and...
Exports of freight transportation services occur when a U.S. carrier receives payments from a foreign company or individual for transporting merchandise. Imports of freight transportation services...