d o t logoUnited States Department of Transportation
Transportation Services Index
Transportation Services Index Release Schedule (2019)
TSI - Monthly Data for Calendar Year (2000 to present)
  • 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.

From: To:
View Table

TSI numbers are BTS estimates.
Monthly data changes with each release due to the use of concurrent seasonal analysis, which results in seasonal analysis factors changing as each month's data are added.

Seasonally-adjusted data