What does IANA measure and why should I care about their volume reports?

The Intermodal Association of North America (IANA) tracks equipment utilization and freight volumes across North American intermodal networks, which handle containers and trailers transported via a combination of rail and truck. These reports are critical industry indicators because intermodal freight represents a significant portion of domestic long-haul transportation, particularly for retailers and manufacturers managing cross-continental supply chains. Volume trends signal demand conditions and capacity availability in this cost-competitive transportation segment.

What do May volume gains suggest about the broader freight market?

May volume gains in intermodal freight suggest that demand is stabilizing after the difficult freight market conditions of 2023-2024. This positive trend indicates shippers may be gaining confidence in demand forecasts and beginning to move more goods through efficient, rail-based intermodal channels rather than relying solely on trucking. However, the gains should be evaluated against seasonal patterns—May typically sees increased activity, so year-over-year comparisons are more meaningful than sequential month analysis.

Could these volume gains push up freight rates and reduce my shipping cost savings?

Potentially, yes. As intermodal volumes recover and approach capacity constraints at key facilities and rail corridors, carriers may begin adjusting pricing upward from the favorable rates available during the recent soft market. Supply chain professionals should lock in favorable contract terms with carriers now and build strategic inventory buffers before rates normalize. Monitoring IANA data and spot market pricing trends will help identify optimal timing for transportation procurement.

Which supply chain segments benefit most from intermodal transportation volume recovery?

Retailers, automotive suppliers, consumer goods manufacturers, and e-commerce companies handling long-distance, less-than-truckload or full-load shipments benefit most from intermodal recovery. These segments benefit from cost savings compared to all-truck transportation, and rising volumes indicate that shared rail capacity is increasingly available and reliable. Companies with cross-country distribution networks should particularly monitor this trend, as it impacts their transportation strategy and mode selection optimization.

Should I adjust my supply chain strategy in response to this positive intermodal data?

Yes, consider these adjustments: (1) evaluate your modal split and ensure you're maximizing intermodal usage where it fits your service requirements; (2) engage carriers now while rates remain favorable, before competitive pressure from rising volumes drives costs up; (3) assess intermodal facility and rail corridor capacity for your key lanes to identify potential constraints; (4) build strategic inventory buffers for geographically distributed demand if you've been operating lean.

Shipping & Freight

Moderate

Intermodal Volume Gains in May Signal Shipping Recovery

Jun 25, 2026

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The signal

The Intermodal Association of North America (IANA) reported volume increases in the intermodal sector during May, indicating early signs of recovery in freight demand across North American transportation networks. This data point comes during a period of cautious optimism in logistics markets, where shippers have been managing reduced inventory levels and selective purchasing patterns. The month-over-month improvement in intermodal volumes suggests that demand may be stabilizing after the demand destruction experienced in 2023 and early 2024. For supply chain professionals, this development carries operational significance.

Intermodal transportation—combining rail and trucking for long-distance shipments—represents a cost-efficient and increasingly important segment of the freight market. Rising volumes indicate increased utilization of rail corridors and intermodal facilities, which could impact service availability and pricing dynamics across the supply chain. Shippers relying on intermodal capacity for cost optimization should monitor pricing trends closely, as increased demand may pressure rates upward from current favorable levels. The positive volume trend reflects broader market stabilization as consumer demand shows resilience in certain segments and businesses rebuild supply chain buffers.

However, supply chain teams should remain vigilant about capacity constraints and equipment availability that often emerge as volumes recover. Strategic positioning of inventory and proactive carrier partnerships will be essential as the market transitions from buyer-favorable conditions back toward more normalized capacity utilization.

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Frequently Asked Questions

What This Means for Your Supply Chain

Simulation Suggestion

immediate

What if you locked in favorable intermodal rates today before the market corrects?

Simulate a procurement scenario where your company secures 12-24 month intermodal transportation contracts at current market rates (estimated 8-12% below historical 3-year averages) before carrier rate increases occur in response to volume recovery. Compare total landed costs under this locked-rate scenario versus month-to-month spot purchasing if rates increase 5-8% quarterly over the next 18 months. Include equipment (container/trailer) availability premiums.

Run this scenario

Simulation Suggestion

this month

What if intermodal capacity utilization reaches 85% within 6 months?

Simulate a scenario where intermodal facility utilization and rail corridor capacity approach 85% utilization levels over the next two quarters as volumes continue to recover. Model the impact on transit time variability, equipment availability, and rate increases across key North American intermodal lanes (Chicago to LA, LA to Dallas, Chicago to Miami). Calculate cost impacts if shippers are forced to shift to all-truck alternatives during peak weeks.

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Simulation Suggestion

this month

How would a 2-week intermodal transit time increase affect your inventory strategy?

Model the inventory and service level impact if intermodal congestion causes average transit times to increase by 10-14 days on major North American lanes due to rail yard delays and equipment repositioning bottlenecks. Simulate the cost of carrying additional safety stock across regional distribution centers to maintain target in-stock rates, and calculate the impact on cash-to-cash cycle time for time-sensitive product categories (apparel, consumer electronics, perishables).

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Supply Chain Simulation: A Guide for Operators

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The signal

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What This Means for Your Supply Chain

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