Guidance

WebTAG: TAG unit A3 environmental impact appraisal, December 2015

Transport analysis guidance (TAG) on the analysis of environmental impacts in transport appraisals.

Documents

TAG unit A3 environmental impact appraisal, December 2015

This file may not be suitable for users of assistive technology. Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email webmasterdft@dft.gsi.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

TAG unit A3 air quality guidance, forthcoming changes

This file may not be suitable for users of assistive technology. Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email webmasterdft@dft.gsi.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Details

This document gives guidance on environmental impact appraisal.

A new noise workbook for aviation proposals was published in December 2017.

This Transport Analysis Guidance (TAG) unit was updated in December 2015 to incorporate Defra released guidance on the valuation of transport-related noise, covering a range of different impact pathways and transport modes. A new set of workbooks to aid in the calculation of monetised impacts of noise, air quality and greenhouse gas emissions was also published alongside this update.

The previous version of this unit was TAG unit A3 environmental impact appraisal, November 2014.

WebTAG provides information on the role of transport modelling and appraisal, and how the transport appraisal process supports the development of investment decisions and business cases.

Published 23 December 2015
Last updated 21 December 2017 + show all updates
  1. Reference to the new noise workbook for aviation proposals.
  2. Forthcoming changes announced to provide added functionality for aviation noise appraisal.
  3. Forthcoming changes to TAG unit A3.
  4. First published.