Ask most people what travels by train and you'll get the same answers: coal, grain, maybe cars. And they're not wrong-those are the heavyweights of rail freight. In the U.S. alone, railroads move around 1.5 billion tons of raw materials and finished goods in a typical year.
But here's the part that surprises a lot of shippers: your truck trailer can ride the train, too. Not the cargo inside it-the entire trailer, wheels and all.
That's the world of intermodal rail, and it's quietly reshaping how long-haul freight moves across continents. Let's unpack what actually travels by train, how Truck Transport By Train works in practice, and why the answer might change how you plan your next shipment.
The Obvious Stuff: What You'd Expect to See on a Train
Start with the heavy, dense, unglamorous cargo that built the railroads.
Construction materials are the single biggest commodity by volume in many markets. In Britain alone, over 33 million tonnes of sand, gravel, cement, and timber moved by rail in 2024. Coal, grain, iron ore, and chemicals still dominate carload traffic in North America-one rail car of coal carries enough to power 20 homes for a year.
Then there's metals and automotive. More than 8 million tonnes of steel and iron moved by rail in Britain in 2024, alongside entire finished vehicles and car parts. These are goods where weight and volume make rail's efficiency advantage impossible to ignore.
This is the classic picture of rail freight: bulk, heavy, and predictable.
The Not-So-Obvious Stuff: Consumer Goods on Rails
Now here's where it gets interesting for importers and retailers.
A huge share of the finished consumer goods you'd normally associate with trucks actually travel by rail-at least for the long-haul portion of their journey. Retailers bring sea containers full of imported goods from ports to inland distribution centres by train. Those containers hold everything from laptops and clothes to food products and medicine, and they move by rail from ports like Southampton to cities across Britain before the final truck leg to stores.
In the U.S., finished consumer goods overwhelmingly move as intermodal traffic-containers and trailers-rather than traditional carload. Electronics, appliances, furniture, apparel, e-commerce parcels: if it's arriving from Asia and heading to the American Midwest, there's a strong chance it spends most of its inland journey on a train.
So when someone asks what cargo is transported by train, the honest answer includes far more than coal and corn. It includes the stuff on your store shelves.
Now the Twist: When the Truck Itself Gets on the Train
This is where Truck Transport By Train comes in, and it's the part most shippers never think about.
There are two main ways to put trucking equipment on a train. The first is container-on-flatcar (COFC)-the standard shipping container gets lifted onto a rail car, then transferred to a truck chassis for local delivery. The second is trailer-on-flatcar (TOFC) , commonly called "piggyback." In a TOFC move, the entire reinforced truck trailer mounts onto a railroad flatcar or spine car for the rail leg, then hooks back up to a truck tractor for the first and last miles.
In plain English: the trailer your goods are loaded into doesn't get unpacked at the rail yard. It drives onto the train, rides hundreds of miles, and drives off again.
This matters because it solves a real problem. Trucks are flexible and can go anywhere, but they're expensive and fuel-hungry over long distances. Trains are incredibly efficient over land-one train can replace several hundred trucks-but they can't deliver to your customer's door. Truck Transport By Train takes the best of both: rail efficiency for the long haul, truck agility for pickup and delivery.
For shipments over 500 miles, intermodal becomes economically attractive. Over 1,000 miles, it can cut fuel use and greenhouse gas emissions by up to 65% compared to truck-only moves. And for certain cargo-high-value manufactured goods, food products, anything where the trailer itself is the natural loading unit-TOFC keeps the cargo sealed and secure from origin to destination.
What This Means If You're Shipping from Asia
Here's the practical takeaway for importers.
If your goods land at a port and need to reach an inland destination-Chicago, Toronto, Dallas, Munich, Warsaw-the smart play is almost never "truck it the whole way." It's a multimodal handoff: ocean to rail to truck. The ocean leg gets you across the water, the rail leg covers the long inland miles efficiently, and the truck leg handles the final delivery to your warehouse or your customer.
But that handoff is exactly where shipments go wrong. The container misses a rail cut. The trailer sits at a terminal waiting for a chassis. The rail schedule doesn't align with the vessel arrival. And suddenly your "efficient" intermodal plan is costing you demurrage, detention, and a lot of frustrated phone calls.
