Analysis of the Vehicle Inventory and Use Survey for Trucks ... - About

# For all truck + trailer combinations which includes the truck+tractor @ 5-axles and the
truck+tractor @ 6-axles or more vehicle groups,
- 1 out of 3 (33%) primarily hauled building materials.
- 1 out of 11 (8.45%) primarily hauled fresh farm products.
- An additional one-quarter of the truck+trailer combinations primarily hauled either logs
and forest products (7.69%), machinery (8.3%), transportation equipment (4.25%), or
petroleum products (6.39%).
# For the tridem axle semitrailer group, more than one-quarter primarily hauled either
machinery (14.09%) or building products (12.05%).
# For the STAA Doubles trucks, nearly one-half (46.53%) hauled mixed cargo. Other
principal products hauled often by STAA doubles were machinery (16.36%), farm products
(11.17%) and building materials (6.06%).
# For the doubles at 6-axles or more, one-half of the group primarily hauled mixed cargo
(32.41%), building materials (9.69%) and processed foods (9.04%).
REGIONAL VARIATIONS - 1997
# One-third of the fleet vehicles (34.9%) primarily hauled one of these three principal
products: processed foods (13.8%), building materials (11.2%), or farm products (9.9%).
Significant proportions of the regional fleets (North Central region—34.9%, North East
region—35.9%, South Atlantic region—33.4%, South Gulf region—27.8%, West
region—41.8%) also claim these as their top three products.
Table 5.2-3 Ranking of Principal Products by Regions in 1992
Commodity National North
Central
37
North
East
South
Atlantic
South Gulf West
Processed foods 1 1 1 1 1 2
Building Materials 2 4 2 4 4 1
Mixed cargo 3 3 3 2 2 4
Farm Products 4 2 5 3 5 3
Machinery 5 5 4 5 3 5
Paper 6 * * * * *
Primary metal 7 6 6 * * *
Note: * indicates 8th or lower ranking