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transportation services index

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Truck Tonnage Used in the Transportation Services Index

Discussion of the truck tonnage data used in the Bureau of Transportation Statistics' Transportation Services Index (TSI). The TSI is a monthly index measuring the volume of freight and passenger traffic. There is a freight, passenger, and combined index.

TSI Data Source and Data Quality Information

Information on the data sources for the Bureau of Transportation Statistics' Transportation Services Index (TSI). The TSI is a monthly index measuring the volume of freight and passenger traffic. There is a freight, passenger, and combined index.

Terminology for the Transportation Services Index

List of terms related to the Bureau of Transportation Statistics' Transportation Services Index (TSI). The TSI is a monthly index measuring the volume of freight and passenger traffic. There is a freight, passenger, and combined index.

Methodology for the Transportation Services Index

Methodology describing how the Bureau of Transportation Statistics creates the Transportation Services Index (TSI). The TSI is a monthly index measuring the volume of freight and passenger traffic. There is a freight, passenger, and combined index.

Transportation Services Index Frequently Asked Questions

Frequently asked questions and answers for the Bureau of Transportation Statistics' Transportation Services Index (TSI). The TSI is a monthly index measuring the volume of freight and passenger traffic. There is a freight, passenger, and combined index.

TSI Explainer Video: About the Transportation Services Index

Video explaining the Bureau of Transportation Statistics' Transportation Services Index (TSI). The TSI is a monthly index measuring the volume of freight and passenger traffic. There is a freight index, a passenger index, and a combined index.

Models for seasonal adjustment of TSI data inputs

Model information available for download: SeasonalAdjustmentModels_Documentation.xls

TSI data TSI data visualizations TSI methodology TSI data source information TSI FAQ TSI explainer video TSI terminology TSI statistical releases (monthly)

Transportation Services Index and the Economy-Revisited

In 2007 the Bureau of Transportation Statistics (BTS) published a report entitled: Transportation Services Index and the Economy, on the relationship of the freight portion of the Transportation Services Index (TSI) to the growth cycles in the U.S. economy. Since that time, BTS has re-engineered...