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An introduction to our economics and appraisal work

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The Department for Transport (DfT) undertakes the following work to ensure that decisions on transport policy are made taking into account the best possible advice by:

  • forecasting growth in transport use;
  • assessing the impact of transport using in-house strategic models;
  • developing and supporting appropriate methods for impacts of transport improvements; and
  • setting the framework, producing and supporting software for assessing whether transport schemes are value for money.

Resources

A number of tools are available to assist those undertaking appraisal and modelling, including:

  • a number of data sources such as the Trip-end Modelling Programme (TEMPRO) which forecasts travel demand at detailed geographical level;
  • a collection of advice and guidance on modelling and appraisal (known as WebTAG) for those developing transport projects;
  • a National Transport Model which has been developed as an analytical and policy testing tool, to provide a systematic means of comparing the national consequences of applied transport polices; and
  • a programme of research work on modelling, appraisal and evaluation which aims to improve our advice on transport modelling and economic appraisal.