WebTAG: forthcoming changes

A list of all approved alterations to TAG guidance and values and the dates that they are planned to be released.


TAG forthcoming changes

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Forthcoming changes provides a list of approved alterations to existing webTAG guidance including:

  • locations
  • planned released dates

Methods and values are amended in line with good practice, as required by the Green book guidance on appraisal and evaluation in central government.

There are also forthcoming changes to the wider economic impact transport analysis guidance.

WebTAG provides information on the role of transport modelling and appraisal, and how the transport appraisal process supports the development of investment decisions.

Published 24 April 2014
Last updated 21 December 2017 + show all updates
  1. Details of the latest forthcoming changes to the transport analysis guidance.
  2. December release including information on the release of the data book, environmental worksheets and SRO and TPM documents.
  3. November 2017 forthcoming changes updated.
  4. 'TAG forthcoming changes' document updated.
  5. Forthcoming WebTAG changes document updated for May 2017 releases.
  6. January 2017 listing of future updates to WebTag guidance.
  7. TAG forthcoming changes updated.
  8. Updated TAG forthcoming changes document.
  9. Forthcoming change document updated for an amendments to noise distributional impacts.
  10. Updated TAG forthcoming changes document.
  11. Added notice of a Autumn 2014 forthcoming changes.
  12. First published.