CBTC-architecture--ALSTOM解读

IMPROVINGCBTCARCHITECTUREFORBETTEROPERATIONALAVAILABILITYANDPERFORMANCESThierryBonnefous,ALSTOMTransportSaintOuen,FRANCEIMPROVINGCBTCARCHITECTUREFORBETTEROPERATIONALAVAILABILITYANDPERFORMANCES•WAYSIDEORIENTEDCBTCSYSTEMSDESIGN•INNOVATIVETRAINCENTRICCBTCSYSTEM•OVERALLSTRONGERBENEFITS3WAYSIDEORIENTEDCBTCSYSTEMSDESIGNAsdefinedintheIEEE1474standard,aCBTCsystemhasthreemaincharacteristics:1.Automatictraincontrolsystemusinghigh-resolutiontrainlocationdetermination,independentoftrackcircuits2.Continuousandhigh-capacity,bidirectionaltrain-to-groundcommunications3.Computingcapabilitieson-boardtrainsandonwayside,inordertoimplementATP,ATOandATSfunctions.Despitethisglobaldefinition,allexistingCBTCsystemsarewaysideorientedandpresentalmostthesamearchitecture.4WAYSIDEORIENTEDCBTCSYSTEMSDESIGNTypicalCBTCarchitecture5WAYSIDEORIENTEDCBTCSYSTEMSDESIGNSpacingmanagementinconventionalCBTCsystems6WAYSIDEORIENTEDCBTCSYSTEMSDESIGNURBALISCBTCdeployedover47metrolines,including18linesinoperationspanningdriverlessormannedsystems,newlinesorsignalingrenovation7EvolutionofATCsubsystemsandrelatedheadwayreduction8WAYSIDEORIENTEDCBTCSYSTEMSDESIGNEvolutionofsignaling:anincreasingcomplexity9INNOVATIVETRAINCENTRICCBTCSYSTEMMARKETNEEDTECHNOLOGYENABLER•Operationalavailability•Transportcapacity•Lowlifecyclecost•Easyextension•Computingcapabilities•Safetyplatform•Radiocommunication•Systemengineering10Trendtoallocatemoreandmoreembeddedfunctionsandintelligenceon-boardtrain=Twomainreallocationscomparedtowayside-centricCBTCsystems:1.Moreofinterlockingandtracksecuringfunctionsaredonebythetrainitself2.Consequently,spacingfunctionismovedfromwaysidedirectlytothetrains.INNOVATIVETRAINCENTRICCBTCSYSTEM111.TracksecuringbythetrainReductionofinterfacesthroughtrain-centricarchitectureINNOVATIVETRAINCENTRICCBTCSYSTEM“Wayside-centric”CBTCsystem“Traincentric”CBTCsystem121.Tracksecuringbythetrain(3/5)ResourcesarebookedandlockedINNOVATIVETRAINCENTRICCBTCSYSTEM131.Tracksecuringbythetrain(5/5)ThevehiclereleasesthetrackresourcesINNOVATIVETRAINCENTRICCBTCSYSTEM142.Train-to-traincommunicationReductionofinterfacesthroughtrain-centricarchitectureINNOVATIVETRAINCENTRICCBTCSYSTEM“Wayside-centric”CBTCsystem“Traincentric”CBTCsystem15InnovationbysimplificationCBTCsimplificationthroughavehicleorientedarchitectureINNOVATIVETRAINCENTRICCBTCSYSTEMSeveralinformationpathsandmodelstobereconciledOneconsistentinformationpath16•HigherOperationalavailability−Lesssubsystems,lessinterfacesandlessequipment−Fewerconstraintsontheradiocommunicationlink−Operationalavailabilitywithmoretrainmovements•Bestperformances&Lowerheadway−Resourcesbooked&releasedbythetrainshorterresponsetime−Accuratemodelizationofphysicalresources−Directcommunicationbetweenconsecutivetrains•Lowlifecyclecost−Lessequipmentleadingtolessmaintenance−HigheroperationalmarginmeansroomforenergysavingstrategiesOVERALLSTRONGERBENEFITSCONCLUSION•CBTCisamaturetechnology•CBTCtrain-centricarchitecturecanbringstrongerbenefitsforallusers•UrbalisFluenceisthefirsttrain-centricCBTCcurrentlyunderdeploymentinLille(France)