Monthly data, seasonally adjusted
The Transportation Services Index (TSI) is a measure of the month-to-month changes in the output of services provided by the for-hire transportation industry. The index can be examined together with other economic indicators to produce a better understanding of the current and future course of the economy.
|Transportation Services Index||Jul-09||Aug-09|
|Combined (Index: 2000 = 100)||98.80||99.48|
|Percent change from previous month||1.51||0.69|
|Freight (Index: 2000 = 100)||95.52||96.15|
|Percent change from previous month||1.62||0.66|
|Passenger (Index: 2000 = 100)||110.38||111.21|
|Percent change from previous month||1.19||0.76|
NOTES: TSI is updated monthly with the index numbers for the latest four months considered to be preliminary. With the release of the preliminary number for the latest month, BTS also replaces the number for the oldest preliminary month with a revised number.
SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Transportation Services Index, available at http://www.bts.gov/ as of October 2009.