# Train: SQUAKE (legacy)

> **This methodology has been renamed.** The SQUAKE train methodology is now called **REM (Rail Emission Model)**.
>
> Please refer to the updated documentation: [Train: REM](/api-calculations-request-response/travel/train/train-rem.md)
>
> The API still accepts `"methodology": "SQUAKE"` as a backward-compatible alias for `"REM"`.


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