The not seasonally adjusted index, which represents the change in tonnage actually hauled by the fleets before any seasonal adjustment, equaled 133.5 in December 2014, which was 6.1% above the previous month (125.8).
“Economic data was mixed in December, with retail sales down 0.9% and factory output up 0.3%, so tonnage was in-between those two readings, which are two large drivers of truck freight,” said Bob Costello, ATA chief economist. “Overall, 2014 was a good year for truck tonnage with significant gains throughout the year after falling 4.5% in January alone.”
Costello said that in December, tonnage was 10.2% above January.
“Freight volumes look good going into 2015,” he said. “Expect an acceleration in consumer spending and factory output to offset the weakness in hydraulic fracking this year.”
Trucking serves as a barometer of the US economy, representing 69.1% of tonnage carried by all modes of domestic freight transportation, including manufactured and retail goods. Trucks hauled 9.7 billion tons of freight in 2013. Motor carriers collected $681.7 billion, or 81.2% of total revenue earned by all transport modes.