Table 1. Data Sources for the Transportation Services Index (TSI)

Table 1. Data Sources for the Transportation Services Index (TSI)

Excel | CSV

Mode Source Measure
Freight    
Trucking American Trucking Associations Index of tonnage
Air Bureau of Transportation Statistics and carrier websites Freight ton-miles
Rail Association of American Railroads Carloads & Intermodal units
Federal Railroad Administration (FRA) Quarterly ton-miles
Water U.S. Army Corps of Engineers Tons
Pipeline Energy Information Administration Thousands of barrels, billion cubic feet
Passenger    
Air Bureau of Transportation Statistics and carrier websites Revenue passenger-miles
Rail Federal Railroad Administration Revenue passenger-miles
Transit American Public Transportation Association Unlinked trips

SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, http://www.bts.gov.