Transport impact evaluations: achieving better attribution

A systematic approach to designing impact evaluations for transport interventions.


Guidance for transport impact evaluations: choosing an evaluation approach to achieve better attribution

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 Please tell us what format you need. It will help us if you say what assistive technology you use.


This guidance is intended for policy makers, scheme promoters, delivery bodies and analysts involved in the design, implementation and evaluation of transport interventions. It provides a step-by-step process to assessing evidence needs and support in selecting the most appropriate evaluation approach.

This guidance has been developed by the Tavistock Institute and AECOM.

Published 17 March 2010