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SERVICE ANNUAL SURVEY: Transportation and Warehousing
PURPOSE
To provide national estimates of revenue and vehicle fleet inventories
for commercial motor freight transportation and public warehousing service
industries. The United States Code, Title 13, authorizes this survey and
provides for mandatory responses.
COVERAGE
Companies with employment that provide commercial motor freight transportation
and public warehousing services (NAICS 484, 492 and 493). The Service Annual Survey also covers the
following service industries, NAICS 51, 5231, 52392, 52393, 532, 54, 56,62, 71, 81. Prior to
1999, the Service Annual Survey did not include transportation industries;
they were surveyed seperately as the Transportation Annual Survey.
CONTENT
Data collected include operating revenue and operating revenue by source;
percentage of motor carrier freight revenue by commodity type, weight of
shipments handled, length of haul, and shipments country of origin and
destination; and vehicle fleet inventory. Current and previous year data
are requested for the first year of a new sample. In subsequent years,
only current year data are requested.
FREQUENCY
Annually since 1982; reported data are for activities taking place during
the calendar year. Data collection begins in January following the survey
year and continues for about 14 weeks. A new sample is introduced about
every 5 years, most recently for the 1999 survey.
METHODS
A mail-out/mail-back survey of some 2,000 selected firms and Employer Identification
Numbers (EINs). The sample is drawn from a list of employers contained
on the Business Register which contains all EINs and locations of establishments
for listed businesses. An EIN may represent one or more establishments and firms
with payroll may have one or more EIN.
Firms are stratified by total revenue size and kind of business using
data from the latest census of transportation. All firms with total revenue
above applicable size cutoffs are included in the survey and report for
all their industry EINs. In a second stage, unselected EINs are stratified
by kind of business and revenue and a simple random sample is taken from
each stratum.
The sample is updated annually to reflect "births" and "deaths" in an
annual procedure. Companies and EINs that are not active in a survey year
are dropped from the sample. New EINs are identified in a birth selection
procedure and included in the survey.
PRODUCTS
Service Annual Survey reports are normally published no later than 12 months
after the end of the survey year. Transportation industry estimates are
for annual operating revenue. Comparable statistics are shown for
the previous year along with year-to-year percentage changes.
The above data are available at: www.census.gov/econ/www/tasmenu.html.
USES
The Bureau of Economic Analysis uses the data as an input to estimates
of national income and product accounts. The Department of Transportation
uses the estimates for policy development, program management, and evaluation.
The Bureau of Labor Statistics uses the estimates in developing producer
price indices and productivity measures.
Trade and professional organizations use the estimates to analyze industry
trends and benchmark their statistical programs; develop forecasts; and
evaluate the impact of regulatory requirements. Researchers use the estimates
for market research and segmentation. Private businesses use the estimates
to measure market share, analyze business potential, and plan investment
decisions.
SPECIAL FEATURES
Provides the only annual source of data for employer firms that offer for-hire
trucking and public warehousing services.
RELATED PROGRAMS
Business
and Professional Classification Survey
Vehicle
Inventory and Use Survey
Commodity
Flow Survey
Census
of Transportation, Communications and Utilities
EXPLORE INFORMATION CONTINUE OVERVIEW
Services
Next Program
U.S. Economy
Economy Overview
Last revised: June 5, 2001
Census 2000
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