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A model for investigating construction workers’ waste reduction

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Amodelforinvestigatingconstructionworkers’wastereductionbehaviorsBinxinYanga,XiangnanSongb,HongpingYuanb,*,JianZuocaSchoolofEconomicsandManagement,SouthwestJiaotongUniversity,Sichuan,610031,PRChinabSchoolofManagement,GuangzhouUniversity,Guangdong,510006,PRChinacSchoolofArchitecture&BuiltEnvironment,TheUniversityofAdelaide,AustraliaarticleinfoArticlehistory:Received9September2019Receivedinrevisedform1April2020Accepted19April2020Availableonline29April2020HandlingEditor:Prof.Bing-JieNiKeywords:ConstructionwasteTheoryofplannedbehaviorSystemdynamicsWastereductionbehaviorabstractConstructionworkers’wastereductionbehaviors(CWWRBs)havebeencriticalgiventhatworkersdirectlyusebuildingmaterialsandcarryouton-siteconstructionactivities.However,todate,theun-derlyingcausationsofCWWRBshavenotyetbeenwellrevealed.ThispaperthusaimstoidentifymajorfactorsaffectingCWWRBsbasedontheTheoryofPlannedBehavior(TPB)anddevelopasimulationmodeltoexplorethecausationofCWWRBsthroughasystemdynamics(SD)approach.Basedonsimulationresultsofthreetypicalgroupsofmanagementmeasures,namely,reactiveactions(RAs),prioritization(P)andpreventiveactions(PAs),itisfoundthatoverallRAsandParemoreeffectiveinimprovingCWWRBs,whiletheeffectofRAsisthemostsignificant.Besides,RAswouldbemoreeffectiveintheearlyperiodofconstructionprocesseswhilePAsmoreeffectiveinthelaterperiod.Thisstudynotonly,forthefirsttime,presentsadeeperexplanationofcausationsofCWWRBs,butalsoprovidesamodelthroughwhichconstructionwastemanagementpoliciesandmeasurescanbe

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