Transportation Services Index (TSI) Fell 0.6 Percent in June from May
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BTS 39-05
Dave Smallen
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Tuesday, September 6, 2005 - The Transportation Services Index (TSI) fell 0.6 percent in June to 112.0 (2000=100) from the May level of 112.6, the first monthly decline following three consecutive increases, 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 (RITA), reported that the June level of 112.0 for the combined freight and passenger index was 2.4 percent higher than the June 2004 level of 109.4 (Table 2). The June 2005 level was 11.7 percent higher than the June 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. The next release of TSI numbers is scheduled for Oct. 6.
Transportation Services Index for Freight
The TSI for freight fell 0.5 percent to 112.6 in June from the May level of 113.1, the first monthly decline following three consecutive increases (Table 1). The June 2005 level of 112.6 is 1.1 percent higher than the June 2004 level of 111.4 (Table 4).
Transportation Services Index for Passengers
The TSI for passengers fell 0.8 percent to 110.3 in June from the May level of 111.2, the first monthly decrease since February (Table 1). The June 2005 level of 110.3 is 5.6 percent higher than the June 2004 level of 104.4 (Table 5).
More on TSI
During the six months ending in June, the TSI rose 1.8 percent, the Freight TSI rose 1.2 percent and the Passenger TSI rose 3.3 percent (Table 1).
Notes: TSI numbers for March 2005 (Total, Freight, and Passenger) were scheduled to be revised because of revisions in the output data of the component transportation services. The March TSI remained at the 111.6 level reported in the August release. The March Freight TSI remained at 112.5. The March Passenger TSI is 109.3, revised from 109.2. The TSI for April, May and June 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, March, 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 December 2004 (Seasonally Adjusted, Monthly Average of 2000 = 100)
Excel | CSV
December |
109.9 |
-0.3 |
111.2 |
-0.4 |
106.8 |
-0.2 |
January |
111.6 |
1.5 |
112.8 |
1.4 |
108.4 |
1.5 |
February |
110.0 |
-1.4 |
111.5 |
-1.2 |
106.2 |
-2.0 |
MarchR |
111.6 |
1.5 |
112.5 |
1.0 |
109.3 |
2.9 |
AprilP |
111.7 |
0.1 |
112.6 |
0.1 |
109.3 |
0.0 |
MayP |
112.6 |
0.8 |
113.1 |
0.5 |
111.2 |
1.8 |
JuneP |
112.0 |
-0.6 |
112.6 |
-0.5 |
110.3 |
-0.8 |
SOURCE: Bureau of Transportation Statistics
Note: P = preliminary; R = revised
Table 2: Percent changes in the Transportation Services Index from Year-to-Year
June TSI (Monthly average of 2000 = 100)
Excel | CSV
1996 |
86.9 |
2.0 |
1997 |
91.1 |
4.8 |
1998 |
97.7 |
7.3 |
1999 |
99.8 |
2.1 |
2000 |
100.2 |
0.5 |
2001 |
99.3 |
-1.0 |
2002 |
99.2 |
-0.1 |
2003 |
100.7 |
1.5 |
2004 |
109.4 |
8.6 |
2005P |
112.0 |
2.4 |
SOURCE: Bureau of Transportation Statistics
Note: P = preliminary
Table 3: Percent Changes in the Transportation Services Index from Previous Years to 2005,
June to June
Excel | CSV
2.4 |
2004 |
1 |
11.2 |
2003 |
2 |
12.9 |
2002 |
3 |
12.8 |
2001 |
4 |
11.7 |
2000 |
5 |
12.2 |
1999 |
6 |
14.6 |
1998 |
7 |
23.0 |
1997 |
8 |
28.8 |
1996 |
9 |
SOURCE: Bureau of Transportation Statistics
Table 4: Percent changes in the Freight Transportation Services Index from Year-to-Year
June Freight TSI (Monthly average of 2000 = 100)
Excel | CSV
1996 |
87.7 |
0.1 |
1997 |
92.4 |
5.3 |
1998 |
101.3 |
9.7 |
1999 |
102.4 |
1.0 |
2000 |
100.3 |
-2.1 |
2001 |
98.9 |
-1.4 |
2002 |
101.4 |
2.6 |
2003 |
103.5 |
2.0 |
2004 |
111.4 |
7.7 |
2005P |
112.6 |
1.1 |
SOURCE: Bureau of Transportation Statistics
Note: P = preliminary
Table 5: Percent changes in the Passenger Transportation Services Index from
Year-to-Year, June Passenger TSI (Monthly average of 2000 = 100)
Excel | CSV
1996 |
84.6 |
6.3 |
1997 |
87.8 |
3.7 |
1998 |
89.6 |
2.1 |
1999 |
93.8 |
4.6 |
2000 |
100.2 |
6.9 |
2001 |
100.2 |
0.0 |
2002 |
93.9 |
-6.2 |
2003 |
94.0 |
0.0 |
2004 |
104.4 |
11.1 |
2005P |
110.3 |
5.6 |
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.
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