Rail Intermodal Hits Record Highs, but Drayage Driver Shortage Threatens Growth

North American rail traffic is experiencing strong momentum, with intermodal volumes hitting record pace and overall domestic traffic up 4.8% year over year according to Association of American Railroads data. However, a critical structural constraint threatens to limit this expansion: the drayage driver pool has contracted from 531,000 in 2022 to just 467,000 as of July, representing a loss of roughly 64,000 operators. This shortage is already flagged by major carriers like JB Hunt as a binding constraint on intermodal capacity growth. Beyond drayage challenges, the underlying freight mix shows resilience and recovery.

Chemicals and petroleum shipments, the second-largest carload category, jumped 7.7% with petroleum products rising 9.4%. Metallic ores and metals posted even stronger 9.5% increases, signaling robust industrial activity. Meanwhile, motor vehicle shipments remain soft due to prior-year comparisons related to EV tax credit timing, though underlying auto sales remain solid above 16 million units annually. For supply chain professionals, this situation presents a strategic inflection point.

Rail intermodal remains economically attractive as long as fuel prices remain elevated and service reliability continues to improve (exemplified by BNSF's Quantum product guarantee of 95 percent-or-better on-time performance). However, the drayage capacity bottleneck now represents the primary operational constraint limiting volume growth, not rail or warehouse capacity.