Compared with April 2023, the index fell 1.5%, which was the 14th straight year-over-year decline. In March, the index was down 1.3% from a year earlier.
The not seasonally adjusted index, which represents the change in tonnage hauled by fleets before any seasonal adjustment, equaled 112.2 in April, 1.7% below March. ATA’s For-Hire Truck Tonnage Index is dominated by contract freight as opposed to spot market freight.
In calculating the index, 100 represents 2015.
Trucking serves as a barometer of the U.S. economy, representing 72.6% of tonnage carried by all modes of domestic freight transportation, including manufactured and retail goods. Trucks hauled 11.46 billion tons of freight in 2022. Motor carriers collected $940.8 billion, or 80.7% of total revenue earned by all transport modes.
ATA calculates the tonnage index based on surveys from its membership and has been doing so since the 1970s.