The Freight Transportation Services Index

The Freight Transportation Services Index (TSI) measures the overall volume of freight transported in the U.S. by various modes such as rail, truck, pipeline, and air. It reflects the health of the economy by indicating whether goods are being moved more or less over time. A rising TSI suggests increased economic activity and demand for goods transportation, while a decline can signal slowing growth or economic downturns. The index helps analysts and policymakers monitor trends in supply chain logistics and gauge the robustness of economic activity indirectly through freight movement data.