American Trucking Associations’ advanced seasonally adjusted (SA) For-Hire Truck Tonnage Index fell 1.7% in April after decreasing 2.8% in March. In April, the index equaled 112.7 (2015=100) compared with 114.7 in March.
Compared with April 2022, the SA index decreased 3.4%, which was the largest year-over-year decrease since February 2021. In March, the index was down 2.4% from a year earlier.
The not seasonally adjusted index, which represents the change in tonnage actually hauled by the fleets before any seasonal adjustment, equaled 109 in April, 9.5% below the March level (120.4). In calculating the index, 100 represents 2015. ATA’s For-Hire Truck Tonnage Index is dominated by contract freight as opposed to spot market freight.
Trucking serves as a barometer of the U.S. economy, representing 72.2% of tonnage carried by all modes of domestic freight transportation, including manufactured and retail goods. Trucks hauled 10.93 billion tons of freight in 2021. Motor carriers collected $875.5 billion, or 80.8% 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. This is a preliminary figure and subject to change in the final report issued around the 5th day of each month. The report includes month-to-month and year-over-year results, relevant economic comparisons, and key financial indicators.