1、DRAFT FOR DEVELOPMENT DD CEN/TS 14821-1:2003 Traffic and Travel Information (TTI) TTI messages via cellular networks Part 1: General specifications ICS 35.240.60 DD CEN/TS 14821-1:2003 This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 8 Ju
2、ly 2003 BSI 8 July 2003 ISBN 0 580 42217 8 National foreword This Draft for Development is the official English language version of CEN/TS 14821-1:2003. This publication is not to be regarded as a British Standard. It is being issued in the Draft for Development series of publications and is of a pr
3、ovisional nature because technology in this area is rapidly evolving. It should be applied on this provisional basis, so that information and experience of its practical application may be obtained. Comments arising from the use of this Draft for Development are requested so that UK experience can b
4、e reported to the European organization responsible for its conversion to a European standard. A review of this publication will be initiated 2 years after its publication by the European organization so that a decision can be taken on its status at the end of its 3-year life. Notification of the st
5、art of the review period will be made in an announcement in the appropriate issue of Update Standards. According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into a European standard, to extend the life of the Te
6、chnical Specification or to withdraw it. Comments should be sent in writing to the Secretary of BSI Technical Committee EPL/278, Road transport informatics, at British Standards House, 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where possibl
7、e, an appropriate revision of the text. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement European publications referred to in this document may be found in the BSI Catalogue under the section ent
8、itled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. Summary of pages This document comprises a front cover, an inside front cover, the CEN/TS title page, pages 2 to 41 and a back cover. The BSI copyri
9、ght date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsTECHNICALSPECIFICATION SPCIFICATIONTECHNIQUE TECHNISCHESPEZIFIKATION CEN/TS148211 May2003 ICS35.240.60 Englishversion TrafficandTravelInformation(TTI)TTImessages
10、viacellular networksPart1:Generalspecifications ThisTechnicalSpecification(CEN/TS)wasapprovedbyCENon10May2001forprovisionalapplication. TheperiodofvalidityofthisCEN/TSislimitedinitiallytothreeyears.AftertwoyearsthemembersofCENwillberequested tosubmittheir comments,particularlyonthequestionwhetherthe
11、CEN/TScanbeconvertedintoaEuropeanStandard. CENmembersarerequiredtoannouncetheexistenceofthisCEN/TSinthesamewayasforanENandtomaketheCEN/TSavailable .It ispermissibletokeepconflictingnationalstandardsinforce(inparalleltotheCEN/TS)untilthefinaldecisionaboutthep ossible conversionoftheCEN/TSintoanENisre
12、ached. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMA
13、LISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.CEN/TS148211:2003ECEN/TS148211:2003(E) 2 Tableofcontents PAGE 1S C O P E 5 2 NORMATIVEREFERENCES 6 3 DEFINITIONSAND
14、ABBREVIATIONS 7 3.1 Definitions 7 3.2 Abbreviations 9 4 ARCHITECTURALELEMENTS 14 4.1 SystemOverview 14 4.2 TimeBase 14 4.3 Communication 14 4.4 MandatoryTerminalFunctions 17 4.5 ErrorHandling 17 ANNEXA. (INFORMATIVE)ARCHITECTUREDESCRIPTION 18 A.1 General 18 A.2 SystemOverview 18 A.3 ProtocolArchitec
15、ture 19 A.4 InformationFlow 20 A.5 LogicalArchitectureofaTerminal 23 A.6 LogicalArchitectureofaServiceCentre 29 ANNEXB. (INFORMATIVE)BASICSERVICEOVERVIEW 31 B.1 General 31 B.2 BreakdownService 31 B.3 EmergencyService 34 B.4 InteractiveTrafficInformationServices 35 B.5 BroadcastTrafficInformationServ
16、ices 36 B.6 NavigationServices 37 B.7 OperatorServices 38 B.8 FloatingCarDataCollection 39 B.9 GeneralInformationServices 39 BIBLIOGRAPHY 41CEN/TS148211:2003(E) 3 Foreword Thedocument(CEN/TS148211:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC278“Road transportandtraffictelematics“,thesecretariatofw
17、hichisheldbyNEN,incollaborationwithTechnical CommitteeISO/TC204“Transportinformationandcontrolsystems“. ThisTechnicalSpecificationwaspreparedbyWorkingGroup7ofCENTC278.InthefieldofTrafficand TravellerInformation,theinnovativerateishigh,withmanyresearchanddevelopmentprojectsunderwayin manycountries,an
18、dthereisaneedtoestablishprospectiveTechnicalSpecificationswhichallow manufacturerstointroducecompetitiveproductstothemarketintheknowledgethattheycanaccommodate thefutureissuesoftheTechnicalSpecification(s)withoutfundamentalchangetoequipment. NoknownnationalTechnicalSpecifications(identicalorconflict
19、ing)existonthissubject. CEN/TS14821consistsofeightparts;onepartdescribingtheframeworkandsevenpartsprovidingdetailed specificationsofallcomponents,protocolsandservicesthatarewithinthescopeofCEN/TS14821. InordertoutiliseevensubsetsfromthisTechnicalSpecificationandtoovercoexistencewithother, proprietar
20、yprotocolsasrequestedbythemarket,itisplannedtointroduceanadditionallayerforrouting purposes.ThisTLVconceptiscurrentlyunderinvestigationandmaybeproposedasanadditionalpartto thisTechnicalSpecification. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countri
21、esareboundtoannouncethisTechnicalSpecification:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands, Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.CEN/TS148211:2003(E) 4 Introduction TrafficandTraveller
22、Information(TTI)maybedisseminatedthroughanumberofservicesormeansof communication,coveringstaticdisplays,portableterminalsandinvehicleequipment. Forallsuchservices,thedatatobedisseminated,andthemessagestructureinvolvedinthevarious interfaces,requirecleardefinitionandstandardsformatsinordertoallowcomp
23、etitiveproductstooperate withanyreceiveddata. ThisTechnicalSpecificationfocusesonanapplicationdataspecificationwherebydataisproducedata centrallocationandisdisseminatedviaacellularradionetwork.Itaddressesthedataspecificationsforboth downlinkanduplinkexistingbetweenacentrallocationandrandomlylocatedv
24、ehicles.Itenablesmessages tobeexchangedbetweendifferentsystemsandserviceprovidersadoptingavarietyofapplications specifications. OtherTechnicalSpecificationsarebeingproducedbytheCENTC278WorkingGroup4tocoverTTI disseminationviaothermeansorservices.ThissetofspecificationsisnamedGATS(GlobalAutomotive Te
25、lematicsStandard).GATSprovidesthemodularframeworkforimplementingsuchtraffictelematics servicesonanopentechnologyplatformandisnetworkindependent.Inmanydetailsdefinitionsare necessarytoensureinteroperability.Therefore,thosedetaileddefinitionsaregiveninCEN/TS148218.With thedevelopmentoffuturemobilecomm
26、unicationsystemstowardsUMTS/IMT2000thebottleneckof narrowbanddatacommunicationmightfade.Duetoitsmodularstructure,theGATSframeworkand applicationsarepreparedforthatduetoitsnetworkindependence.Thesameholdsforemerging technologiesforpositioningwhichtodayisalmostexclusivelybasedonGPS. Otherrelevantstand
27、arddevelopmentsare,independentfromtelematics,theapplicationindependent WirelessApplicationProtocol(WAP),enablingmobileaccesstotheInternet.Itisunderstoodthatthese emergingtechnologiesmightfitintotheframeworkoftelematicsapplicationsinfutureWAPversions.Forthe timebeing,GATSalreadytodayindependentlyfrom
28、WAPenablesaccesstotelematicsservices.Utilisation ofGATSonaWAPprotocolstackandidentifyingnecessaryadaptationofWAPspecifications(ifany)is currentlyunderinvestigationoftheappropriategroupswithinWAPForumandGATSForum.CEN/TS148211:2003(E) 5 1 Scope ThisTechnicalSpecificationdefinesthespecificinterfacesand
29、functionalityoftraffictelematics(TT)services basedontheuseofcellularnetworks.Devicemanufacturersareenabledtodevelopterminalequipment compatibletoservicesbasedonthisstandard.Thiswillallowforinteroperabilityofdifferentterminal equipmentandserviceproviderswhichallowscompetitionbetweenserviceprovidersan
30、dterminal manufacturers.Furthermoreitsetsthesceneforinternationalavailabilityoftheseservices. ThisTechnicalSpecificationspecifies TTspecificinterfacesbetweenterminalandservicecentre.Thisespeciallyincorporatesthemessage setsoftheapplicationdataprotocolsandtheserviceindependentcommunicationhandling(in
31、cluding conditionalaccessandtransportprotocols). Functionality,proceduresandrequirementsofbasicterminalcomponentsaswellastheirinteractionwith theservicecentre.Thisespeciallycomprisesconditionalaccessandsecuritymechanisms. ServiceSpecifications,whichareessentialtoensureconsistentbehaviourofterminalan
32、dservicecentre. Theservicesincorporatedwithinthisissuecomprise: breakdownandemergencyservices interactivetrafficinformationservices broadcasttrafficinformationservices navigationservices(routeassistance,routeadvice,homing) operatorservices generalinformationservices floatingcardatacollection Itisenv
33、isagedthatfutureresearchanddevelopmentwillleadtoimprovementsontheserviceslistedabove aswellastothecreationofnewservices.NeverthelessthisTechnicalSpecificationprovidestheframework forseamlessintegrationofnewfeaturesandservicesintotheexistingarchitecture.CEN/TS148211:2003(E) 6 2 Normativereferences No
34、tapplicable.CEN/TS148211:2003(E) 7 3 Definitionsandabbreviations 3.1 Definitions ForthepurposesofthisTechnicalSpecification,thefollowingtermsanddefinitionsapply: 3.1.1 Attribute(ofaTrafficInformationMessage) ATrafficInformationMessageismadeupofseparatepartsthatcanbecalledattributes.Thisincludes,for
35、example,anitemofinformationandalengthofvalidity. 3.1.2 Authorisation Reciprocalproofthattheidentityprovidedbythecommunicationspartnerisvalid 3.1.3 BroadcastService Dataservicewithinacellularwirelessnetworkthatallowsformonodirectionaldisseminationofdatafroma servicecentretomultipleusersintheareaofsig
36、nalreception 3.1.4 BypassDescription RepresentationofaBypass,consistingofaBypassHintand/oraBypassRoute. 3.1.5 BypassHint RepresentationofahintforaBypass 3.1.6 BypassLink ProminentwaypointsonaBypassRoute 3.1.7 BypassRoute RepresentationoftherouteforaBypass 3.1.8 CellBroadcast BroadcastserviceoftheGSM
37、network 3.1.9 Datatelegram Digitalmessageexchangedbetweentwosystems 3.1.10DeliveryNotification Networkacknowledgementforsuccessful/unsuccessfuldeliveryofamessagetothemobiledevice 3.1.11FunctionalRoadClass Aclassificationbasedontheimportanceoftheroadelementintheconnectivityofthetotalroadnetwork 3.1.1
38、2FunctionalRoadClass0 Motorways 3.1.13FunctionalRoadClass1 AllnonMotorwaysthatarepartofaconnectionusedfornationwidetrafficandtransportCEN/TS148211:2003(E) 8 3.1.14Geocode Geocodesareuniqueidentifiersunmistakablydefiningimportantpointsonroadnetworks.Geocodescanbe derivedfrom/convertedintoWGS84coordin
39、atesbythealgorithmdescribedinCEN/TS148213. 3.1.15Hardwareserviceagents Partnercompaniesofthetraffictelematicsserviceproviderswhoareauthorisedtoinstallonboardequipment intovehiclesandtomaintainit 3.1.16Homing Simpleformofguidancetodestination,inwhichthedirectionand straightlinedistanceofthedestinatio
40、nareindicated 3.1.17InformationElement Informationunitofamessage 3.1.18Intersection Junctionoftwoormoreroads 3.1.19LengthofaSpeechReport LengthofaSpeechReport,includingpauses,intenthsofasecond 3.1.20MobileOriginated DatatelegramsentfromtheonboardequipmenttotheServiceCentre. 3.1.21MobileTerminated Da
41、tatelegramsentbytheServiceCentretotheonboardequipment. 3.1.22Onboardequipment Asystem,generallymobile,interactingwiththeservicecentretohandletraffictelematicsservices 3.1.23RoadJunction Intersectionoftwoormoreroads 3.1.24Routedescription Descriptionofarouteshowingthegeometryofstreetintersections,man
42、oeuvreinstructions,streetandplace names,andgeographicalcoordinates 3.1.25Servicecentre Systemproducedbythetraffictelematicsoperators/serviceproviderstohandletraffictelematicsservices 3.1.26ShortMessageService PacketbasedformofdatatransferwithintheGSMnetwork 3.1.27Speechconnection Communicationschann
43、elbetweentwosystemsforthebidirectionaltransmissionofspeech 3.1.28SpeechReport TrafficInformationReporttransmittedbyaspeechsystemCEN/TS148211:2003(E) 9 3.1.29TerminalDevice Generallymobilesysteminteractingwiththeservicecentreforimplementationoftelematicsservices 3.1.30TINFO TrafficInformationReport 3
44、.1.31TINFOVersion UniqueidentificationofaTrafficMessage,consistingofanumberandatimestamp 3.1.32TrafficData DataforqualificationofTrafficEvents.Thisincludes: Values: speed,trafficflow,trafficdensity Places: position,placedesignation Facts: descriptionofsituation 3.1.33TrafficEvent Anoccurrenceonaroadorinanareathatisworthyofreporting,suchasatrafficjam,wrongwaydriver,or fog. 3.1.34TrafficInformation TechnicalrepresentationofaTrafficSituationwithintheonboar
