Project: Developing guidance on attribution in transport impact evaluations

Reference: R221

Last update: 07/04/2010 11:43:27


The aims of the work are:

To develop transport impact evalatuion approaches to attribution, and to provide guidance to Department and Local Authority analysts on how to identify and design an appropriate approach.

The objectives are to:

. Understand transport schemes and wider public policies' challenges to the attribution of impacts;
. Generate generic impact evaluation designs that overcome the challenges to attribution;
. Develop guidance on how to select the appropriate impact evaluation approach, and how to approach of the attribution element of an impact evaluation; and
. Test the applicability of the guidance and the feasibility of different evaluation approaches with the Department's and Local Authorities' analysts.


The Department wishes to increase the number and quality of transport evaluations. To do this, a better understanding of how to attribute impacts to transport polices and schemes is required. This project will relate directly to the evalaution framework of better use schemes, the development of measuring the productivity benefits of transport scheme, and any future DfT or local authority transport evaluations. The gudiance to be produced will be available on the DfT website.


Tavistock Institute
30 Tabernacle Street, London, EC2A 4UE

Contract details

Cost to the Department: £55,071.00

Actual start date: 13 December 2007

Actual completion date: 17 March 2010


Guidance for transport impact evaluations: choosing an evaluation approach to achieve better attribution
Author: Tavistock Institute
Publication date: 17/03/2010
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