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FIGURE 1-4-1 - Transportation Services Index (TSI): January 1998-March 2010

FIGURE 1-4-1 - Transportation Services Index (TSI): January 1998-March 2010

Monthly data, seasonally adjusted

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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.

FIGURE 1-4-1 - Transportation Services Index (TSI): January 1998March 2010. If you are a user with disability and cannot view this image, use the table version. If you need further assistance, call 800-853-1351.

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 June 2010.