US Rail Freight Rises in Late September Led by Auto and Grain

The Association of American Railroads reported that for the week ending September 27th, U.S. rail freight and intermodal traffic both experienced year-over-year growth. Significant increases were seen in the transportation of nonmetallic minerals, grain, and motor vehicles & parts. Conversely, coal, petroleum & petroleum products, and metallic ores & metals saw declines. For the first 39 weeks of 2025, both total U.S. rail freight traffic and intermodal volume have shown year-over-year growth, indicating a positive trend in the sector.
US Rail Freight Rises in Late September Led by Auto and Grain

Imagine countless trains laden with goods, pulsing like economic arteries across America's vast landscape. Every acceleration or deceleration of these steel giants sends ripples through the market. Recent data suggests a glimmer of recovery in U.S. rail freight activity.

Positive Weekly Growth in Rail Volumes

The Association of American Railroads (AAR) reported year-over-year growth in both rail carloads and intermodal units for the week ending September 27. Rail carloads reached 228,903 units, marking a 0.9% increase compared to the same period last year. This figure slightly surpassed the previous week's 228,609 carloads but remained below the 231,237 recorded two weeks prior.

Intermodal container and trailer volumes showed stronger performance at 283,739 units, representing a 1.1% year-over-year increase. This exceeded both the 282,068 units from the prior week and the 282,930 recorded two weeks earlier.

Commodity Analysis: Divergent Trends Emerge

Of the ten commodity categories tracked by AAR, five demonstrated growth, revealing shifting supply-demand dynamics across industries:

  • Nonmetallic minerals led gains with 32,825 carloads (+2,249), likely driven by seasonal construction demand and ongoing infrastructure projects.
  • Grain shipments rose by 1,710 carloads to 22,609, reflecting global market fluctuations and harvest season activity.
  • Motor vehicles and parts increased by 499 carloads to 17,205, signaling automotive sector recovery despite persistent chip shortages.

Conversely, several commodities faced declines:

  • Coal volumes dropped by 1,330 carloads to 59,499, continuing its long-term decline amid environmental regulations.
  • Petroleum products decreased by 439 carloads to 10,343, affected by energy market volatility.
  • Metallic ores fell by 355 carloads to 20,853, reflecting global economic uncertainties.

Year-to-Date Performance Shows Resilience

Cumulative data for the first 39 weeks of 2025 reveals overall growth, with total rail carloads reaching 8,652,275 (+2.1%) and intermodal units at 10,573,701 (+3.5%). These figures demonstrate the sector's resilience despite economic headwinds.

Industry Outlook and Challenges

While technological advancements like automation and intermodal solutions promise efficiency gains, the industry faces persistent obstacles including labor shortages, aging infrastructure, and trucking competition. Rail operators must prioritize innovation and cost reduction to maintain competitiveness.

As a key economic indicator, rail freight data provides valuable insights into industrial activity and broader market trends. The current mixed performance suggests cautious optimism for the transportation sector's recovery path.