Labor Productivity in Transportation
Labor
productivity (output per hour) in the for-hire transportation services
industries increased by 18 percent from 1992 to 2002. This compares with an
increase of 47 percent for all manufacturing and 24 percent for the overall
business sector (figure 8-1). Labor productivity, a common and basic
productivity measure, is calculated as the ratio of output to hours worked or
to the number of full-time equivalent employees.
The
growth of individual transportation subsector labor
productivity between 1992 and 2002 varied1 (figure 8-2). Compared with the overall business sector, rail labor
productivity increased at a considerably higher rate (60 percent). Meanwhile,
labor productivity in air transportation increased 27 percent, and
long-distance trucking productivity grew 12 percent.
Comparing
annual growth rates is another way to interpret changes in labor productivity
over time. For overall business, labor productivity grew at an annual rate of
2.1 percent between 1992 and 2002. Labor productivity in rail
transportation-where productivity has been affected by consolidation of
companies, more efficient use of equipment and lines, increased ton-miles
(output), and labor force reductions-increased by 4.6 percent annually. For long-distance
trucking and air transportation, annual rates of growth were 1.1 percent and
2.2 percent, respectively.
1 At the time this report was prepared, data were
only available through 2000 for local trucking, petroleum pipeline, and bus
carriers. See detailed notes on table 8-1 and table 8-2 for further information.
|