Dr. KWOK Pak Ki, AlexAlexDr. KWOK Pak KiLau, Y. K. HenryY. K. HenryLau2021-11-192021-11-192018IEEE Access, 2018, vol. 6, pp. 3509-3523.2169-3536http://hdl.handle.net/20.500.11861/6753Open accessThis paper presents a methodology for building a consensus among the stakeholders based on the level of importance of each evaluation criterion to choose the best final design, approach, or solution for a project. The proposed methodology adopts an improved vague set minimum-cost consensus model (MCCM) and a modified Delphi method. This paper discusses several shortcomings of the traditional MCCM and the Delphi method. It argues that humans' resistance to change based on a numerical rating scale follows a natural logarithm pattern instead of a linear or quadratic pattern as claimed in other studies. Hence, the traditional MCCM needs to be revised accordingly. In addition, an experiment was concluded to compare the proposed consensus-building methodology with the traditional Delphi method. The experiment showed that the proposed methodology is better than the traditional Delphi method regarding using fewer rounds to reach a consensus. At last, this paper applies the proposed methodology to the field of road junction design selection.enConsensus-Building MethodologyPain ScoresImportant CriterionDelphi MethodConsensus ModelModified Delphi MethodRoad JunctionsParticipants In GroupDirection Of ChangeLength Of StayMagnitude Of ChangeContributions Of This WorkGroup ConsensusMedian ResponseDelphi ProcessLevel Of ConsensusDelphi SurveyGroup OpinionMinimal ConsensusConsensus RatingDelphi RoundMinimum Acceptable LevelConsensus-Building ProcessInitial ConsensusNumerous Case StudiesFeasible SolutionConfidence LevelNumber RangePeer Reviewed Journal Article10.1109/ACCESS.2017.2787677