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1、SchedulingYardCranesConsideringCraneInterference123UlfSpeer,GerlindeJohn,andKathrinFischer1HamburgerHafenundLogistikAGBeiSt.Annen120457Hamburgspeer@hhla.de2HHLAContainer-TerminalAltenwerderGmbHBeiSt.Annen120457Hamburgjohn-g@hhla.de3InstitutfürQuantitativeUnternehmensforschungundWirtschaftsi
2、nformatikTechnischeUniversitätHamburg-HarburgSchwarzenbergstrasse95D21073Hamburgkathrin.fischer@tu-harburg.deAbstract.Automatedstackingcranesformtheheartofmoderncontainerterminals.Hence,theirproductivityhasamajorinfluenceontheperformanceoftheterminal.Inthefirstpartofthispaper,theyardcranesc
3、hedulingproblemanditspracticalrelevancefromthepointofviewoftheContainerTerminalAltenwerder(CTA)inHamburg,Germany,isdescribed.InAltenwerder,26yardblocksorthogonaltothequaywithtransferareasatbothendsofeachblockareoperatedwithdoublerailmountedgantries(DRMG).Inthesecondpartofthepaper,anoutlineo
4、fanewschedulingalgorithmforyardcranesonthisparticularlayoutisgiven.Theprocedureminimizesdelaysforthejobsandthecycletimesofthecranes.Inadditiontoin-motiontimesalsootherpartsofthecycletime,aswaitingandblockingtimesresultingfromothercranes,aretakenintoaccountintheschedulingapproach.Abranchandb
5、oundalgorithmisusedtocreatesequencesofjobsforeachcrane.Usingasimulationmodel,boththeinfluenceofthelengthofthesesequencesandtheimpactoftechnicalbreakdownsontheresultsareanalysed.Finally,theresultsareverifiedwithoperationaldataandtheapplicabilityforpracticeattheCTAisevaluated.1IntroductionCon
6、tainerterminals,asoneofthemainlinksinintercontinentalsupplychains,arehighlyaffectedinperiodsofstronglygrowingcontainerflows.Suchperiodshaveoccurredrepeatedlyinthepast,andthistrendisalsocurrentlyapparentincontainershipping.Itisinfluencednotonlybyglobaleconomicaspects,butalsobytheincreaseofde
7、ep-seavesselsizes.Thisleadstoanincreasingvolumeofcontainersthathastobehandledbytheterminalinalimitedtimeperiod.Guaranteedservicetimesandvesselhandlingratesarerequiredfromtheterminaloperator.ThisresultsinJ.W.Böseetal.(Eds.):ICCL2011,LNCS6971,pp.321–340,20
