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Collection

Transport appraisal and strategic modelling (TASM) research reports

Analysis, appraisal, evaluation, modelling and research that has been carried out to inform transport decisions and policies.

Updates to this page

From:
Department for Transport
Published:
1 July 2013
Last updated:
30 July 2026
Show all updates

  1. Research on capturing resilience impacts within transport appraisal added to understanding and valuing the impacts of transport investment. Freight modelling: methodology think pieces added to forecasting the future demand for travel

  2. Added latest TASM research.

  3. Environment and Health collection updated with a technical note on Estimating carbon emissions from road users, added to the Environment and Health collection.

  4. Understanding and valuing road freight travel time, its peer review and the response to the peer review added.

  5. 23 pages related to transport appraisal and modelling added.

  6. Scheme interaction assessment technique; Congested values of time in transport modelling and Cycling diversion factors reports added.

  7. 'Car travel econometrics' report published.

  8. Capturing housing impacts in the appraisal of transport schemes.

  9. 'The treatment of non-recoverable VAT in appraisal' and 'Values of travel time savings: scoping study' published.

  10. Agglomerations elasticities literature review added.

  11. Research reports on emission curves, the national car ownership model, trip rates, matrix building and mobile phone data published alongside the JAPD annual report.

  12. Research into valuing health impacts in transport appraisal.

  13. Published values of travel time savings and reliability: final reports and peer review & audit and also published values of travel time: qualitative research on business travel.

  14. First published.

To ensure that transport systems are effective, transport decisions and policies made by government and the transport sector, are based on:

  • economic and statistical analysis
  • appraisal
  • evaluation
  • modelling
  • research

To provide the best evidence base for planning policies and schemes, mathematical models, guidelines and software are used by DfT to analyse complex transport patterns.

These reports provide details of research that has been carried out to inform transport decision making.

Core appraisal approaches and user benefits

Economic growth

Environment and health

Forecasting the future demand for travel

Understanding and valuing the impacts of transport investment

Valuing journey improvements

Contents