Guidance

WebTAG: TAG unit A5-4 marginal external costs, January 2014

Transport analysis guidance (TAG) on using the marginal external costs method in transport modelling and appraisal.

This publication was withdrawn on

The updated version of this unit is TAG unit A5-4 marginal external costs, December 2015.

Documents

TAG unit A5-4 marginal external costs, January 2014

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

Information on the marginal external costs method which is based on the change in various external costs such as congestion, air pollution, noise, infrastructure and accidents. The marginal external costs method is the used to estimate the benefits of reducing congestion in the absence of a multi-modal model.

Forthcoming changes list all current approved changes to the unit.

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 29 October 2013