Guidance

TAG unit A5-3 rail appraisal

Transport analysis guidance (TAG) on the appraisal of rail interventions.

From:
Department for Transport
Published
31 May 2018
Last updated
28 November 2024 — See all updates

Documents

TAG unit A5-3 rail appraisal

PDF, 596 KB, 24 pages

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TAG unit A5-3 rail appraisal, including forthcoming changes for May 2025

PDF, 430 KB, 24 pages

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Forthcoming change: base year update

https://www.gov.uk/government/publications/tag-forthcoming-changes/forthcoming-change-base-year-update

Details

Gives guidance on the appraisal of rail interventions.

The previous version of this guidance was published in November 2023.

TAG provides information on the role of transport modelling and appraisal, and how the transport appraisal process supports the development of investment decisions to support a business case.

Updates to this page

Published 31 May 2018
Last updated 28 November 2024 + show all updates

  1. Updated with forthcoming changes for May 2025.

  2. TAG unit A5-3 updated.

  3. Forthcoming changes added.

  4. TAG unit A5-3 updated.

  5. TAG unit A5-3 updated.

  6. Added forthcoming change: spring 2023 data book and guidance updates.

  7. TAG unit A5-3 updated.

  8. Forthcoming changes for November 2022.

  9. Updated guidance.

  10. Notification of forthcoming change for November 2021.

  11. Updated with new version of unit A5-3 guidance.

  12. First published.

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