Road safety resource allocation using interactive multiobjective optimization

Maria Grazia Augeri, Salvatore Greco, Natalia Disefano, Salvatore Leonardi

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A model is proposed for allocating safety resources to various hazard sites. Due to budget constraints, allocation of resources for necessary countermeasures is a critical issue in safety improvement programs. Therefore, the Decision Maker needs a tool that can prioritize the identified countermeasures looking at several objectives, the most important of which are: reducing the number of accidents and minimizing the costs. A number of countermeasures could be implemented simultaneously in the same location and this was considered, so that the solution that best optimizes the objectives was selected. Since the considered
objectives are not commensurable, a new methodology with interactive multi-objective optimization in the case of 0-1 integer variables was proposed, based on the application of a logical preference model built
using dominance-based Rough Set Approach (IMO-DRSA). Finally, an application of the methodology is presented considering a sample of Italian urban intersections and a set of mutually exclusive alternatives at
each location.
Original languageEnglish
Article number4
Number of pages16
JournalEuropean Transport
Publication statusPublished - 1 Dec 2021


  • road accidents
  • road saftey
  • budget allocation
  • decision making
  • interactive multiple objective optimization
  • dominance-based rough set approach


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