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
29 May 2025 鈥� See all updates

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Details

Gives guidance on the appraisal of rail interventions.

The was published in May 2024.

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 29 May 2025 show all updates

  1. TAG unit A5-3 updated.

  2. Updated with forthcoming changes for May 2025.

  3. TAG unit A5-3 updated.

  4. Forthcoming changes added.

  5. TAG unit A5-3 updated.

  6. TAG unit A5-3 updated.

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

  8. TAG unit A5-3 updated.

  9. Forthcoming changes for November 2022.

  10. Updated guidance.

  11. Notification of forthcoming change for November 2021.

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

  13. First published.

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