You are here

Transportation Services Index (TSI) Fell 0.1 Percent in August from July

Transportation Services Index (TSI) Fell 0.1 Percent in August from July

PDF

BTS 51-05
Dave Smallen
202-366-5568

Monday, November 7, 2005 — 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. Release of September numbers is scheduled for Dec. 6.

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).

Notes : TSI numbers for May 2005 (Total, Freight, and Passenger) were revised because of revisions in the output data of the component transportation services. The May TSI is 112.0, revised from 112.6 reported in the October release. The May Freight TSI is 112.8, revised from 113.1. The May Passenger TSI is 110.0, revised from 111.2. The TSI for June, July and August are preliminary.

TSI revision policy: TSI is updated monthly with the latest three months' index numbers considered preliminary. Each month BTS releases the latest preliminary TSI, and replaces the oldest preliminary TSI with a revised TSI. The TSI for the oldest preliminary month, May, has been revised. All other revisions are held until an annual comprehensive revision of the TSI which will be released as part of the following July TSI release. More information about the revision policy is available at http://www.bts.gov/xml/tsi/src/index.xml.

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

Excel | CSV

  TSI Freight Passenger
Index Pct. Change Index Pct. Change Index Pct. Change
February 110.0 −1.4 111.5 −1.2 106.2 −2.0
March 111.6 1.5 112.5 1.0 109.3 2.9
April 111.6 0.0 112.5 0.0 109.2 −0.1
MayR 112.0 0.4 112.8 0.2 110.0 0.8
JuneP 112.0 0.0 112.6 −0.2 110.3 0.2
JulyP 111.6 −0.3 111.9 −0.6 110.8 0.5
AugustP 111.5 −0.1 112.4 0.5 109.1 −1.5

SOURCE: Bureau of Transportation Statistics

Note: P = preliminary; R = revised

Table 2: Percent changes in the Transportation Services Index from Year-to-Year
August TSI (Monthly average of 2000 = 100)

Excel | CSV

  TSI Percent change from same month previous year
1996 87.4 2.0
1997 92.9 6.2
1998 97.8 5.3
1999 101.0 3.2
2000 100.7 −0.3
2001 101.5 0.8
2002 100.8 −0.6
2003 101.7 0.9
2004 108.7 6.9
2005P 111.5 2.5

SOURCE: Bureau of Transportation Statistics

Note: P = preliminary

Table 3: Percent Changes in the Transportation Services Index from Previous Years to 2005
August to August

Excel | CSV

Percent change to August 2005 Since August . . . Duration in years
2.5 2004 1
9.6 2003 2
10.6 2002 3
9.9 2001 4
10.7 2000 5
10.4 1999 6
14.0 1998 7
20.0 1997 8
27.5 1996 9

SOURCE: Bureau of Transportation Statistics

Table 4: Percent changes in the Freight Transportation Services Index from Year-to-Year
August Freight TSI (Monthly average of 2000 = 100)

Excel | CSV

  Freight TSI Percent change from same month previous year
1996 88.2 −0.1
1997 94.6 7.3
1998 100.7 6.5
1999 103.2 2.5
2000 101.1 −2.0
2001 100.7 −0.4
2002 103.0 2.3
2003 103.8 0.8
2004 110.2 6.2
2005P 112.4 2.0

SOURCE: Bureau of Transportation Statistics

Note: P = preliminary

Table 5: Percent changes in the Passenger Transportation Services Index from Year-to-Year
August Passenger TSI (Monthly average of 2000 = 100)

Excel | CSV

  Passenger TSI Percent change from same month previous year
1996 85.4 7.0
1997 88.8 4.0
1998 91.4 2.9
1999 95.8 4.8
2000 99.9 4.3
2001 103.2 3.3
2002 95.6 −7.3
2003 96.6 1.0
2004 105.0 8.8
2005P 109.1 3.9

SOURCE: Bureau of Transportation Statistics

Note: P = preliminary

Brief Explanation of the TSI

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 industries.

The TSI tells us how the output of transportation services has increased or decreased from month to month. The index can be examined together with other economic indicators to produce a better understanding of the current and future course of the economy. The movement of the index over time can be compared with other economic measures to understand the relationship of changes in transportation output to changes in Gross Domestic Product (GDP).

The TSI is still under development and is therefore considered experimental. It is being examined for refinements in data sources, methodologies and interpretations.

The freight transportation index consists of:

For hire trucking,
Railroad freight services (including rail based intermodal shipments such as containers on flat cars),
Inland waterways transportation,
Pipeline transportation (including principally petroleum and petroleum products and natural gas), and
Air freight.

The index does not include international or coastal waterborne movements, private trucking, courier services, or the US Postal Service.

The passenger transportation index consists of:

Local transit,
Intercity passenger rail, and
Passenger air transportation.

The index does not include intercity bus, sight seeing services, ferry services, taxi service, private automobile usage, or bicycling and other non-motorized transportation.