Transport modelling and appraisal

Transport analysis guidance, modelling and research including WebTAG.


  1. Competition for opening local authority transport data

    £500,000 competition, till 8 February 2019, to help English local authorities to share key transport data.

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Guidance and regulation

  1. Transport analysis guidance
  2. TAG data book
  3. Trip End Model Presentation Program (TEMPro) download
  4. TAG: appraisal tables for presenting a business case
  5. TAG unit A3 environmental impact appraisal
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News and communications

  1. Review of decision making in the Department for Transport
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Research and statistics

  1. Car travel econometrics
  2. Road traffic forecasts 2018
  3. Inclusive mobility and tactile paving guidance review
  4. National Transport Model: implementation report
  5. National Transport Model: calibration and validation
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Policy papers and consultations

  1. Transport appraisal and modelling strategy: informing future investment decisions
  2. Understanding and valuing the impacts of transport investment: wider impacts transport appraisal guidance (WebTAG)
  3. Monitoring and reviewing railway markets
  4. Call for evidence: transport investment and economic performance
  5. DfT value for money framework
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Transparency and freedom of information releases

  1. Department for Transport information asset register
  2. Joint Analysis Development Panel: annual report 2017 to 2018
  3. Joint Analysis Development Panel: annual report 2016 to 2017
  4. Joint Analysis Development Panel: annual report 2015 to 2016
  5. Net present value (NPV): information used to calculate road scheme figures
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