The Transportation Services Index (TSI) is a monthly measure of the volume of services performed by the for-hire transportation sector. The TSI tells us how the output of transportation services has increased or decreased from month to month.
Index: Monthly average of 2000 = 100.0; seasonally adjusted
|TSI total||TSI freight||TSI passenger|
NOTE: August-October 2006 data are preliminary. See source for balance of data.
SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Transportation Services Index, available at http://www.bts.gov/, as of December 2006.