Formwork System Selection in Building Construction Projects Using an Integrated Rough AHP-EDAS Approach: A Case Study

The successful completion of reinforced concrete (RC) building construction projects depends, in part, on selecting the appropriate formwork system (FWS) since it may significantly affect project’s cost, time, and quality performance factors. selection FWS depends a number compromising conflicting criteria, while several alternatives be available. Therefore, has mostly been treated as multi-criteria-decision-making (MCDM) problem. Although various MCDM methods have employed to address problem, none considered subjectivity uncertainty arising from group decision-making process. This study aims fill this knowledge gap by proposing an integrated approach using recently developed with rough numbers. In approach, first, team is formed develop decision hierarchy. Then, analytic hierarchy process (R-AHP) used determine criteria weights, followed evaluation based distance average solution (R-EDAS) method rank alternatives. Finally, results are compared different ensure stability proposed approach. applied real-life project Turkey select most FWS. was found effective, recommended for future problems. support tool professionals experts projects.