# How do I count emissions when my truck travels on a Ro-Ro train?

Canonical: https://senseible.earth/answers/roro-trucks-on-train-emissions

Split the trip into legs. The road legs to and from the rail terminals use truck diesel. The rail leg uses a rail factor applied to the full weight carried, truck plus cargo, unless the railway gives you its own figure. Diesel saved on the rail leg is the gain.

## Legs to add

- Road: factory to loading terminal.
- Rail: terminal to terminal, truck on a flat wagon.
- Road: unloading terminal to customer.

## Evidence

Keep the Ro-Ro booking with distance and weight, and fuel slips for the road legs.

## What Senseible does here

Senseible reads bills, fuel invoices and production records into dated, fingerprinted records, so the figure you send a buyer can be traced to its documents.

- [Intermodal container emissions](https://senseible.earth/answers/intermodal-container-emissions-rail-road-sea)
- [Emissions from a freight bill](https://senseible.earth/answers/how-to-calculate-emissions-from-a-freight-bill)

Sources: [Smart Freight Centre, GLEC Framework](https://www.smartfreightcentre.org/en/our-programs/emissions-accounting/global-logistics-emissions-council/), [GHG Protocol Corporate Value Chain (Scope 3) Standard](https://ghgprotocol.org/corporate-value-chain-scope-3-standard)

Last reviewed 2026-10-22.