US Intermodal Volume Falls Further in July Amid Economic Slowdown

According to IANA data, US intermodal volume decreased by 9.8% year-over-year in July, a widening decline. Key factors include economic weakness, high inventory levels, and increased competition from trucking. IANA anticipates a potential turnaround in the second half of the year, but expects growth to be slower than in the past. President Joni Casey noted that Q2 performance was below expectations and hopes for a strong peak season. She emphasized that high inventories, inflation, and declining consumer demand are contributing factors.
US Intermodal Volume Falls Further in July Amid Economic Slowdown

Introduction — Intermodal transportation, the integration of two or more shipping modes to move freight, has long been a cornerstone of efficient logistics. Using standardized containers that seamlessly transfer between trucks, trains, and ships, this method offers cost-effective, environmentally friendly door-to-door service. However, recent data reveals significant turbulence in the U.S. intermodal sector, with volumes declining sharply through mid-2023.

Current Market Conditions

The Intermodal Association of North America (IANA) reported a 9.8% year-over-year decline in July 2023, with total volume dropping to 1,340,158 units. This accelerated from June's 7.1% decrease, continuing a troubling downward trend. Year-to-date figures through July show a consistent 9.6% contraction across 9.4 million units moved.

Sector-Specific Performance

  • Domestic Containers: Fell 1.9%, demonstrating relative resilience amid weakening industrial output.
  • Trailer Shipments: Plunged 19.9%, reflecting intense trucking competition and sensitivity to fuel costs.
  • ISO Containers: Dropped 15.7%, signaling global trade headwinds from geopolitical tensions.

Regional variations persist, with coastal logistics hubs generally outperforming inland areas. The competitive landscape remains fragmented among major railroads, trucking firms, and third-party logistics providers, each vying for shrinking freight volumes.

Key Challenges

Economic Headwinds

Slowing GDP growth, declining manufacturing PMI, and cautious consumer spending have collectively reduced freight demand. Wholesale and retail inventories remain elevated at 1.45 months' supply—well above pre-pandemic levels—further suppressing new orders.

Modal Competition

Trucking firms have aggressively expanded capacity, hiring drivers and adding equipment. Their pricing flexibility and door-to-door service increasingly divert shipments from rail intermodal options, particularly for shorter hauls.

Structural Constraints

Chronic infrastructure bottlenecks—from port congestion to rail yard delays—compound efficiency challenges. While diesel price volatility typically advantages rail, recent fluctuations have disrupted cost predictability across all modes.

Future Outlook

Long-term prospects remain promising as several catalysts emerge:

Economic Recovery

As inventory cycles normalize and consumption rebounds, intermodal stands to regain lost volume. The Congressional Budget Office projects 2024 GDP growth at 2.2%, potentially reinvigorating freight demand.

Technological Advancements

Automated terminals, predictive analytics for routing optimization, and blockchain-enabled visibility solutions are reducing transit times and improving reliability.

Policy and Sustainability

The Infrastructure Investment and Jobs Act's $66 billion rail allocation may alleviate capacity constraints. Meanwhile, intermodal's carbon efficiency (emitting 60% less than truckload) aligns with corporate sustainability goals.

Strategic Recommendations

Industry participants should focus on:

  1. Enhancing service reliability through precision scheduling
  2. Developing hybrid truck-rail solutions for medium-distance lanes
  3. Investing in automated cargo handling systems
  4. Expanding cold chain and cross-border capabilities

While current conditions present significant hurdles, intermodal's inherent efficiency advantages position it for resurgence as macroeconomic conditions stabilize. The sector's ability to adapt through technology adoption and operational improvements will determine its trajectory in the coming years.