Guidance

TAG Data Book

Historical and reference information on all the appraisal and modelling values referred to in the transport analysis guidance (TAG).

Published 29 November 2018
Last updated 31 May 2019 — see all updates
From:
Department for Transport

Documents

TAG data book

XLSM, 3.4MB

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Details

The TAG Data Book provides all of the appraisal and modelling values referred to in TAG guidance. The data book features:

  • historical information
  • factual reference information

about the appraisal and modelling values.

The previous release of this data book is available on the National Archives.

Published 29 November 2018
Last updated 31 May 2019 + show all updates
  1. Updated reflecting the forthcoming changes given new forecasts from the ONS and OBR.
  2. 2019 forthcoming changes document added.
  3. First published.