U.S. Transportation Services Index and Seasonally-Adjusted Monthly Data

The Transportation Services Index (TSI) is a monthly, seasonally-adjusted measure of freight and passenger movement output created by the U.S. Department of Transportation's Bureau of Transportation Statistics. It combines weighted data on freight traffic and passenger travel to reveal underlying economic trends. Row and column counts are not specified in the input.

Use Cases

• Analyze the relationship between the Freight Transportation Services Index and economic cycles using monthly seasonally-adjusted values.
• Model trends in Passenger Transportation Services Index data to forecast changes in passenger travel demand.
• Compare seasonally-adjusted trends across transportation modes like Rail Freight Carloads, Transit Ridership, and Pipeline Petroleum tonnage.
• Use the monthly index values to identify turning points in overall transportation services output.

Strengths

• Data is produced by the authoritative U.S. Bureau of Transportation Statistics, an official government agency.
• The dataset is seasonally-adjusted, allowing for direct month-to-month comparison of underlying trends.
• Covers multiple transportation facets including freight, passenger, rail, pipeline, and highway metrics.

Limitations

• The specific temporal coverage (start and end dates) and the total number of data points (rows) are not provided.
• The dataset's structure, including available columns and file schemas, is unspecified.
• Data is limited to U.S. transportation services, not providing a global or comparative international perspective.

Provenance

Source

U.S. Department of Transportation, Bureau of Transportation Statistics (BTS).

Collection Method

Combines and weights available data on freight traffic and passenger travel.

Time Range

Monthly data; specific date range not provided.

Freshness

Last updated March 14, 2026, indicating a forward-looking update schedule.

Geography

United States.