Guidance

TAG unit M1-1 principles of modelling and forecasting

Transport Analysis Guidance (TAG) explains why we use forecasting, modelling and data collection for transport appraisal and why certain methods are used.

From:
Department for Transport
Published
29 October 2013
Last updated
25 April 2024 — See all updates

Documents

TAG unit M1-1 principles of modelling and forecasting

PDF, 414 KB, 23 pages

TAG unit M1-1 principles of modelling and forecasting, including forthcoming changes for May 2024

PDF, 425 KB, 48 pages

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Forthcoming change: modelling guidance updates

https://www.gov.uk/government/publications/tag-forthcoming-changes/forthcoming-change-modelling-guidance-updates

Details

This document explains why we use forecasting, modelling and data collection for transport appraisal, and why the methods given in the guidance are used.

TAG provides information on the role of transport modelling and appraisal, and how the transport appraisal process supports the development of investment decisions to support a business case.

Published 29 October 2013
Last updated 25 April 2024 + show all updates

  1. Forthcoming changes for TAG unit M1-1 added.

  2. First published.