WelTAG should be used in the development and appraisal of transport proposals promoted or funded by Welsh Government.

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First published:
1 June 2008
Last updated:

Documents

WelTAG 2017 Welsh Transport Appraisal Guidance

PDF
208 KB
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WelTAG 2017 supplementary guidance The Well Being of Future Generations (Wales) Act 2015

PDF
117 KB
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WelTAG 2017 supplementary guidance transitional arrangements

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75 KB
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WelTAG 2017 supplementary guidance legislative context

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140 KB
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Welsh transport appraisal guidance (WelTAG) 2008

PDF
5 MB
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Details

There are two primary purposes of WelTAG:

  • to enable the most beneficial scheme to be identified
  • to allow the comparison of schemes on a like-for-like basis

This document:

  • describes how to plan and develop transport proposals
  • gives advice on how to conduct an appraisal
  • shows how to present appraisal results
  • gives advice about post-implementation monitoring and evaluation