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TSI measures more than the number of trucks on the road

When then Secretary Norman Mineta rang the opening bell at the New York Stock Exchange in 2004 to announce a new monthly transportation index, he kicked off a new era in the use of statistics for measuring transportation. In the decade since, the Bureau of Transportation Statistics, the DOT’s data agency, has been applying its advanced statistical methods to track the level of transportation activity, issuing an index number every month.

During the past 11 years, the BTS Transportation Services Index (TSI) has shown the changes in transportation activity, including both its low in the 2007-2009 recession and its record highs in recent months...

TSI showing Freight, Passengers, and Total
Transportation Services Index (TSI) Freight and Passengers (Year 2000=100)

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