Guidelines of the Federal Statistical Organizations

The Bureau of Transportation Statistics (BTS) joined with the 13 other major Federal statistical agencies and organizational units in drafting a common approach to the OMB guidelines for information quality. The common approach, published as a notice in the Federal Register on June 4, 2002, has...

Seasonally Adjusting Vehicle Miles Traveled

Return to the Bureau of Transportation Statistics' seasonally adjusted data homepage

For the most recent data and model used for seasonal adjustment, visit: https://data.bts.gov/Research-and-Statistics/Transportation-Services-Index-and-Seasonally-Adjus/bw6n-ddqk

Methodology: Seasonal Adjustment of the Transportation Services Index Time Series Data

Because the principal purpose of the index is to reflect monthly shifts in transportation services output and analyze short-term trends, the variation introduced by normal seasonal changes must be removed from the data. Transportation is highly seasonal, and without...

Models for seasonal adjustment of TSI data inputs

Model information available for download: SeasonalAdjustmentModels_Documentation.xls

Seasonally-Adjusted Data: What it Really Means

Seasonally-Adjusted Transportation Data

Table 13. Fares at Metropolitan Areas 4th Quarter 2016

Airports* Based on 4Q2016 U.S. Originating Domestic Passengers

Fares are based on domestic itinerary fares. Itinerary fares consist of round-trip fares unless the customer does not purchase a return trip. In that case, the one-way fare is included. Fares are based on the total ticket value...

Table 12. Fares at Airports with Up to 50K-99,999K Originating Passengers 4th Quarter 2016

Airports* Based on 4Q2016 U.S. Originating Domestic Passengers

BTS reports average fares based on domestic itinerary fares. Itinerary fares consist of round-trip fares, unless the customer does not purchase a return trip. In that case, the one-way fare is included. Fares are based on the...

Table 11. Fares at Airports with 100K-499,999K Originating Passengers 4th Quarter 2016

Airports* Based on 4Q2016 U.S. Originating Domestic Passengers

Fares are based on domestic itinerary fares. Itinerary fares consist of round-trip fares unless the customer does not purchase a return trip. In that case, the one-way fare is included. Fares are based on the total ticket value...

Table 10. Fares at Airports with 500K-999,999K Originating Passengers 4th Quarter 2016

Airports* Based on 4Q2016 U.S. Originating Domestic Passengers

Fares are based on domestic itinerary fares. Itinerary fares consist of round-trip fares unless the customer does not purchase a return trip. In that case, the one-way fare is included. Fares are based on the total ticket value...