Report numberRA-MOW-2011-006
TitleMulticriteria analysis of speed reducing enforcement measures on highways
SubtitleA sensitivity analysis
AuthorsLevi Vermote
Fredriek Van Malderen
Cathy Macharis
Published byPolicy Research Centre for Mobility and Public Works, track Traffic Safety 2007-2011
Number of pages39
Document languageDutch
Partner(s)Vrije Universiteit Brussel
Work packageOther: Evaluation techniques

Sustainability assessment is generally used to identify unsustainable effects of policy measures, like sustainable transport policy strategies. Still, sustainability effects of road traffic safety policy measures are insufficiently studied. This paper will assess the sustainability of speed enforcement policy measures on highways. A multicriteria evaluation framework, containing social, economic and environmental assessment criteria, evaluates different speed enforcement policy alternatives. The framework determines how the policy alternatives meet the criteria, ranking the policy alternatives according to their sustainability in a priority matrix. Results show that intelligent speed enforcement strategies are more sustainable than automatic and manned speed enforcement strategies. To determine the robustness of the multicriteria results and to increase the transparency of the ranking system, the results of the mulitcriteria analysis are subjected to a sensitivity analysis. Changes in the ascertained weights of the different criteria are simulated, to examine possible modifications in the priority matrix ranking. Results of the sensitivity analysis perpetuate the multicriteria results. If policy makers ascribe higher weights to the social, economic or environmental criterion, the priority matrix is only modified in a limited way.


This study demonstrates that the multicriteria analysis is an efficient instrument to assess the sustainability of policy measures. They provide compromise solutions for conflicting sustainability objectives.

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The Policy Research Centre for Traffic Safety carries out policy relevant scientific research under the authority of the Flemish Government. The Centre is the result of a

cooperation between Hasselt University, KU Leuven and VITO, the Flemish Institute for Technological Research.


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