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Transportation Services Index

The most recent data are from February 2014. Previous releases with Chain-type Index 1996 = 100 are still available.

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Subject Release Date1 Time2
TSI, Mar 2014 Wed, May 14, 2014 11:30 AM
TSI, Apr 2014 Wed, Jun 11, 2014 11:30 AM
TSI, May 2014 Thu, Jul 10, 2014 11:30 AM
TSI, Jun 2014 Wed, Aug 13, 2014 11:30 AM
TSI, Jul 2014 Wed, Sep 10, 2014 11:30 AM
TSI, Aug 2014 Wed, Oct 8, 2014 11:30 AM
TSI, Sep 2014 Thu, Nov 13, 2014 11:30 AM
TSI, Oct 2014 Wed, Dec 10, 2014 11:30 AM

1 These are target dates and are subject to revision.
2 Times are Eastern Standard Time (EST) or Eastern Daylight Time (EDT)

Transportation Services Index. If you are a user with a disability and cannot view this image, use the table version. If you need further assistance, call 800-853-1351


NOTE: TSI is updated monthly. The index numbers for the latest three months are considered to be preliminary. BTS releases the preliminary number for the latest month and replaces the number for the oldest preliminary month with a revised number. Seasonal adjustment models for the modal data have been updated for the data January 2000 to the present. The earlier data (January 1990 to December 1999) were adjusted with the older seasonal adjustment models, which may result in a discontinuity in the time series.

TSI numbers are BTS estimates.

The Transportation Services Index (TSI), created by the U.S. Department of Transportation (DOT), Bureau of Transportation Statistics (BTS), measures the movement of freight and passengers. The index, which is seasonally adjusted, combines available data on freight traffic, as well as passenger travel, that have been weighted to yield a monthly measure of transportation services output.

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