LAUSR

Abstract Today, the focus on risks and uncertain events is one of the essential goals of any organization. If hazards are not taken into consideration at the planning stage it could be dangerous during project life cycle. Therefore, risk assessment is so important which has been extensively investigated by many researchers in recent years. This research suggested a method based on a combination of two WSM models (weighted sum model) and WPM (weighted product model), known as the weighted aggregated sum product assessment (WASPAS) method which was employed to assess negative effects of risks on project. This method has capability and more accuracy compared to independent methods in alternatives ranking. The WASPAS method is one of the new multi-index decision-making techniques which has been adopted and employed in many areas. In this research, we identified and evaluated the risks of a road construction project in Iran which the results showed inaccessibility/inappropriate of barrow pits, loss of key manpower during project life cycle, employing inexperienced subcontractors are of the most important risks among identified risks. Also this paper suggested the WASPAS method as a suitable method with more accuracy among MCDM techniques for evaluating of risks in a real situation.