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U.S Department of Transportation

BTS Releases Transportation Services Index (TSI)

The Transportation Services Index (TSI) fell 0.1 percent in August to 111.5 (2000=100) from the July level of 111.6, the second consecutive monthly…

The Transportation Services Index (TSI) fell 0.1 percent in August to 111.5 (2000=100) from the July level of 111.6, the second consecutive monthly decline, the U.S. Department of Transportation’s Bureau of Transportation Statistics (BTS) reported today (Table 1).



BTS, a part of DOT’s Research and Innovative Technology Administration, reported that the August level of 111.5 for the combined freight and passenger index was 2.5 percent higher than the August 2004 level of 108.7 (Table 2). The August level was 10.7 percent higher than the August level of the base year of 2000 (Table 3).



TSI is a single seasonally adjusted index of the month-to-month changes in the output of services provided by the for-hire transportation industries, including railroad, air, truck, inland waterways, pipeline, and local transit.



The index includes historic data from 1990 to the present. The TSI is still under development and is considered experimental. The index measures changes from the monthly average of the base year of 2000.



Transportation Services Index for Freight



The TSI for freight rose 0.5 percent to 112.4 in August from the July level of 111.9, turning up after two consecutive monthly declines (Table 1). The August 2005 level of 112.4 is 2.0 percent higher than the August 2004 level of 110.2 (Table 4).



Transportation Services Index for Passengers



The TSI for passengers fell 1.5 percent to 109.1 in August from the July level of 110.8, turning down after three consecutive monthly increases (Table 1). The August 2005 level of 109.1 is 3.9 percent higher than the August 2004 level of 105.0 (Table 5).



More on TSI



During the six months ending in August, the TSI rose 1.4 percent, the Freight TSI rose 0.8 percent and the Passenger TSI rose 2.8 percent (Table 1).



Table 1: Percent changes in the Transportation Services Index by Month
Since February 2005 (Seasonally Adjusted, Monthly Average of 2000 = 100)

TSI

Freight

Passenger

Index

Pct. Change

Theodore Koumelis
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