Road safety risk evaluation by means of ordered weighted averaging operators and expert knowledge

Authors:
Elke Hermans;Da Ruan;Tom Brijs;Geert Wets;Koen Vanhoof
Affiliations:
Hasselt University, Transportation Research Institute IMOB, Wetenschapspark 5 bus 6, 3590 Diepenbeek, Belgium;Hasselt University, Transportation Research Institute IMOB, Wetenschapspark 5 bus 6, 3590 Diepenbeek, Belgium and Belgian Nuclear Research Centre, Boeretang 200, 2400 Mol, Belgium;Hasselt University, Transportation Research Institute IMOB, Wetenschapspark 5 bus 6, 3590 Diepenbeek, Belgium;Hasselt University, Transportation Research Institute IMOB, Wetenschapspark 5 bus 6, 3590 Diepenbeek, Belgium;Hasselt University, Transportation Research Institute IMOB, Wetenschapspark 5 bus 6, 3590 Diepenbeek, Belgium
Venue:
Knowledge-Based Systems
Year:
2010

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Abstract

The road safety performance of countries is conducted by combining seven main risk indicators into one index using a particular weighting and aggregation method. Weights can be determined with respect to the assumed importance of the indicator, whereas aggregation operators can be used to stress better performances differently from worse performances irrespective of the indicator's meaning. In this research, both expert weights and ordered weighted averaging operators are explored, evaluated and integrated resulting in a ranking of countries based on a road safety index.