Freight Rail Is Gaining Back Modal Share From Trucking — But Only on the Long-Haul Corridors That Matter

The 750-Mile Threshold Is Where Rail Economics Decisively Outperform Trucking

The modal competition between truck and rail for US freight is not uniform across distances or cargo types. Below 500 miles, truck dominates: the door-to-door service capability, flexibility on routing, and absence of terminal transfer costs make truck the default choice for most shippers regardless of volume. Above 750 miles, the economics shift. Fuel cost per tonne-mile for rail is approximately four times more efficient than truck, and the differential compounds with distance. Class I railroad intermodal services , which combine the economics of rail on the long-haul segment with final-mile truck delivery from intermodal terminal to destination , have consistently beaten truck-only alternatives on total cost per tonne on lanes above 750 miles when service reliability is comparable.

The recovery of rail's competitive position on long-haul corridors is being driven by two structural forces. The first is trucking cost inflation: diesel prices, driver wages that have risen approximately 25 percent since 2020 as the driver shortage has worsened, and the insurance cost increases driven by nuclear jury verdicts against trucking companies have all compressed trucking operator margins and elevated shipper costs on truck-dependent lanes. The second is the improvement in rail service reliability following the adoption of Precision Scheduled Railroading by all Class I railroads since 2019 , a network operating model that prioritises train schedule adherence, terminal turn times, and asset utilisation over network flexibility. PSR's service reliability improvements have reduced the service penalty that shippers historically accepted when choosing rail over truck.

Precision Scheduled Railroading Has Improved Asset Turns , At the Cost of Network Flexibility

Precision Scheduled Railroading was pioneered by Hunter Harrison at Illinois Central, Canadian National, Canadian Pacific, CSX, and Union Pacific, and has been adopted in modified forms across all major North American freight railroads. Its core operating principles are deceptively simple: run trains on fixed schedules rather than waiting for cars to accumulate, measure and manage terminal dwell time as a primary operating metric, and price services to reflect true network costs rather than competing for volume regardless of margin. The operating ratio improvements that PSR delivered , CSX reduced its operating ratio from 69 percent to 57 percent between 2017 and 2022 , were dramatic enough to make PSR adoption a financial imperative for every Class I railroad's management team.

The shipper experience of PSR has been more mixed. The fixed-schedule model improves service reliability on the lanes and volumes that fit the schedule, but reduces the network's ability to accommodate irregular volumes, unusual routing requirements, and the kind of expedited service that shippers in supply chain disruption scenarios require. The 2021-to-2022 supply chain crisis exposed the limits of PSR network inflexibility: Union Pacific and BNSF were both subject to Surface Transportation Board inquiries into service reliability failures, and several large shippers including Home Depot and Tyson Foods publicly disclosed diverting freight to truck as a result of rail service deterioration. The railroads have since adjusted PSR implementations to restore some network flexibility, and service reliability metrics have recovered, but the episode reinforced shippers' reluctance to commit to rail-only supply chain strategies on critical lanes.

Intermodal Volume Growth Is Outpacing Carload Freight on Every Major US Corridor

Intermodal freight , containers and trailers moving on rail flatcars with truck pickup and delivery at each end , has been the growth engine of the North American freight rail industry for two decades and that trajectory is accelerating. AAR data shows that US intermodal volumes grew by 6.8 percent year-over-year in 2025, while carload volumes (bulk commodities like coal, grain, and chemicals loaded directly into rail cars) grew by 1.2 percent. The intermodal growth reflects both modal conversion from truck-only service on long-haul lanes and the continued growth of import container flows through Pacific and Gulf Coast ports that naturally connect to Class I railroad inland networks.

The infrastructure investment required to support intermodal growth is substantial and is being made by both railroads and public sector partners. Union Pacific's Sunset Route capacity expansion, BNSF's Northern Transcon double-tracking programme, and CSX's National Gateway intermodal corridor infrastructure are all multi-billion dollar projects that expand the physical capacity of the rail corridors that serve intermodal volume. The public investment component is significant: the Bipartisan Infrastructure Law allocated USD 66 billion to rail infrastructure including intermodal facility development, and several RAISE grants under the Department of Transportation have specifically funded intermodal terminal capacity expansions in underserved inland markets. The infrastructure investment is capacity-constrained, not demand-constrained: every intermodal lane expansion that reduces transit time or improves reliability captures additional shipper volume from trucking alternatives.

Electrification and Hydrogen Locomotives Are Moving From Research to Procurement Planning

North American freight rail operates almost entirely on diesel traction, and freight rail accounts for approximately 2.5 percent of US transportation sector greenhouse gas emissions. The decarbonisation pathway for freight rail is substantially different from passenger rail, where overhead electrification is standard in Europe and Japan. The infrastructure cost of electrifying the North American freight rail network , estimated at USD 500 billion to USD 1 trillion for full overhead electrification , makes conventional electrification economically infeasible for privately owned freight railroads. The alternatives under active development are battery-electric and hydrogen fuel cell locomotives for line-haul service, with diesel hybrid locomotives as a near-term interim solution.

BNSF and Wabtec's FLXdrive battery-electric locomotive completed a successful demonstration in California's San Joaquin Valley in 2021, achieving 11 percent fuel reduction in hybrid operation with diesel counterparts. Wabtec's FLXdrive 100 percent battery locomotive is under development for shorter-distance haul applications. Canadian Pacific's hydrogen locomotive programme, in partnership with Alberta Innovates, is developing hydrogen fuel cell traction for long-haul freight service where battery energy density is insufficient for the tractive requirements. The commercial deployment of zero-emission freight locomotives is constrained by infrastructure , hydrogen fuelling stations and high-power battery charging facilities at locomotive servicing points , and by the total cost of ownership differential against diesel that still requires either carbon pricing or direct subsidy to close at current technology costs.

Short-Line Railroads Are the Last-Mile Problem That Intermodal Growth Cannot Solve Alone

The Class I railroad network serves major industrial and intermodal hubs but does not reach the majority of US manufacturing facilities, agricultural elevators, and distribution centres. Short-line railroads , the 600-plus Class II and Class III carriers that operate regional and local rail lines connecting to Class I interchange points , provide the first and last mile connectivity that enables rail to serve a broader customer base than Class I networks alone could reach. The short-line sector has historically been undercapitalized, with infrastructure ages averaging 50-to-60 years and deferred maintenance creating service reliability problems that limit their competitive effectiveness against truck alternatives on the local lanes they serve.

The Consolidated Rail Infrastructure and Safety Improvements grant programme under the Bipartisan Infrastructure Law has directed significant capital toward short-line infrastructure rehabilitation, and the American Short Line and Regional Railroad Association has documented over USD 3.5 billion in committed public-private investment in short-line infrastructure since 2021. The investment is improving the connectivity value of the short-line network , rehabilitated trackage that can handle heavier cars and higher speeds allows short-line shippers to connect to Class I intermodal services that were previously inaccessible because of track condition limitations. As short-line rehabilitation reduces the service gap between short-line and Class I rail quality, the effective geographic reach of competitive rail service expands, and the total addressable market for intermodal rail conversion from trucking grows accordingly.

Top 10 Companies in the Global Freight Rail and Intermodal Market

1. Union Pacific , Largest US freight railroad by revenue; operates 32,000-route-mile network across the western US with major intermodal and bulk commodity franchises
2. BNSF Railway (Berkshire Hathaway) , Second-largest US freight railroad; dominant in intermodal from Pacific ports and coal from Powder River Basin
3. CSX Transportation , Eastern US Class I railroad with major intermodal network and bulk commodity franchise; pioneer of Precision Scheduled Railroading improvements
4. Canadian National Railway , Only railroad accessing three coasts (Pacific, Atlantic, Gulf of Mexico); operates Canada-to-Mexico intermodal network through its Illinois Central subsidiary
5. Canadian Pacific Kansas City , First truly North American rail network after the Kansas City Southern merger; single railroad service between Canada, the US, and Mexico
6. Norfolk Southern , Eastern US Class I railroad with Crescent Corridor intermodal programme targeting highway-to-rail conversion on Southeast lanes
7. Wabtec Corporation , Rail technology and locomotive manufacturer developing FLXdrive battery-electric locomotives and digital train management systems
8. DB Cargo , Deutsche Bahn's freight rail subsidiary; largest European rail freight operator with cross-border intermodal services across 18 countries
9. J.B. Hunt Transport Services , US intermodal and truckload carrier with the largest rail-truck intermodal operation in North America through its Intermodal segment
10. Genesee and Wyoming , Largest short-line and regional railroad operator in North America with 120-plus railroads connecting local industry to Class I interchange points