Rail freight shipping: what shippers need to know

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The quick answer

Freight rail works best when the shipment and facility match the rail service.

The first question is not:

How far is it?

It is:

What kind of rail move is this?

A shipper may use:

• a single railcar or group of carloads,
• intermodal containers/trailers,
• a unit train,
• a transload facility,
• private railcars,
• railroad-supplied cars,
• dimensional/heavy rail equipment.

Each has a different operating process.

Rail freight has two movements happening at once

The shipper sees one shipment.

The railroad sees:

1. the freight, and
2. the railcar/equipment cycle.

A loaded car has to be:

• supplied/accepted,
• placed for loading,
• loaded safely,
• documented,
• released,
• switched into a train,
• moved across the network,
• possibly interchanged to another railroad,
• placed at destination,
• unloaded,
• released empty,
• and sent to its next assignment.

That is why car availability and empty-car return matter so much in rail.

Does the shipper need tracks?

Not always.

Direct rail service

Origin and/or destination has an industry track connected to a railroad.

Transload

Truck moves freight between the shipper/receiver and a nearby rail-served transload facility.

BNSF describes the basic transload chain as:

truck → transload → railcar → rail → transload → truck

This is one of the easiest ways for a non-rail-served shipper to use rail.

Intermodal

Freight stays inside a container/trailer and moves:

truck → intermodal ramp → train → intermodal ramp → truck

No carload siding is required at the shipper's warehouse.

Railcar type matters

Common railcars include:

• boxcar,
• covered hopper,
• open hopper,
• gondola,
• flatcar,
• centerbeam,
• tank car,
• well car,
• autorack.

AAR notes that many freight cars are not owned by the railroad carrying them. Shippers and leasing companies own or lease large fleets too.

The freight determines the car.

The facility has to work operationally

For direct carload service, ask:

• Which railroad serves the track?
• Is the track active?
• What car types can the industry track handle?
• How many cars fit?
• Who owns/maintains the track?
• How often does the local railroad switch?
• Can the loading/unloading operation be completed inside free time?
• Are there clearance/weight restrictions?

A rate is not useful if the origin cannot physically accept the car.

Car supply can be railroad or private

Some commodities use railroad-supplied equipment.

Other shippers own or lease private cars.

Private cars introduce additional equipment-registration and loading-authority questions. Railinc/AAR's OT-5 process is part of that landscape.

Do not assume “we have a railcar” means the originating railroad is obligated to load it without the applicable approvals.

Pricing comes before movement

Rail pricing can be:

• tariff,
• contract,
• quote/price authority,
• interline rate,
• commodity/lane-specific arrangement.

Fuel surcharges and accessorials may apply.

Rail rates are not usually built from one universal “rate per mile.”

Shipping instructions tell the railroad what the car is doing

After the car is loaded, the railroad needs instructions/waybill data.

Typical information can include:

• shipper,
• consignee,
• origin,
• destination,
• commodity,
• car number,
• routing,
• hazardous-material data when applicable,
• payer/billing information,
• special handling.

UP's first-time shipper process puts it simply: order the car, then use Waybill Management once it is loaded to tell the railroad where it goes.

Rail service includes local switching

A long-distance rail shipment can be delayed by something happening within a few hundred feet of the plant.

The railroad must:

• spot the empty/loaded car,
• pull it after release,
• move it to the serving yard.

STB calls this industry spot and pull service and uses local-service performance as one measure of Class I rail service.

Interchange can add another railroad

If origin and destination are not on the same railroad, a railcar may be handed to another carrier at an interchange.

The shipper may see:

Railroad A → Railroad B → short line → receiver

The physical car keeps moving; responsibility for the linehaul changes at interchange points.

Tracking is event based

Rail tracking commonly follows events such as:

• placed,
• released,
• pulled,
• arrived yard,
• departed yard,
• interchange delivered/received,
• constructive placement,
• actual placement,
• unloaded/released.

It does not behave exactly like a truck GPS dot moving down the highway.

Bottom line

Rail becomes much less confusing when you separate the move into six questions:

1. What rail service fits?
2. Is origin/destination rail served?
3. What equipment is required?
4. Who supplies/approves that equipment?
5. What instructions and loading work must be completed?
6. How will the car be switched, moved, tracked and unloaded?

Related:

• How a carload rail shipment works
• Carload vs intermodal vs unit train vs transload
• Railcar types guide

Official / authoritative references

• AAR Freight Rail Operations 101: https://www.aar.org/operations-101/
• UP First Time Rail Shipper Checklist: https://www.up.com/shipping/onboarding-steps
• BNSF Transload: https://www.bnsf.com/ship-with-bnsf/ways-of-shipping/door-to-door-transload.html
• STB Rail Customer and Public Assistance: https://www.stb.gov/resources/need-assistance/rcpa/