CBTC – Communication Based Train Control

1 Rail Signalling Solutions igor SilajevCBTC Communication Based Train Control Rail Signalling Solutions igor SilajevIntroduction Communication Based Train Control is an automated Control system that ensures safe operation of rail vehicles using data Communication between Control entities. CBTC is Based on basic principles from telecommunication and automation There are different levels of automation: Automatic Train Protection (ATP) Automatic Train Operation (ATO) Automatic Train Supervision (ATS)Rail Signalling Solutions igor SilajevTHALES CBTC Characteristic of THALES CBTC : Standard network and radio Based Communication system Based on the Internet Protocol (IP) Standard. Remote Train monitoring in real time Constant high-speed connectivity between Train and trackside Centralized network management A flexible network architectureRail Signalling Solutions igor SilajevTHALES CBTC Functional Components Detection of Train location, speed and direction Transponder tags, tachometer, Accelerometer, Switch/route info Route and switch interlocking Safe Train separation using Progressive Movement Authority Work Zone protection Train handover between neighboring Zone Controller Emergency Stop Device responseRail Signalling Solutions igor SilajevCBTC Digital Communication Network (DCS) Rail Signalling Solutions igor SilajevCBTC Communication subsystem Wired Network (backbone)

2 Wireless network (wayside) On-board (vehicle) network COMMUNICATIONS NETWORKCENTRAL EQUIPMENTSTATIONEQUIPMENTWAYSIDEEQUIPMEN T'OBEOBEON-BOARD EQUIPMENTE xternalConnectionCOMMUNICATIONS NETWORKCENTRAL EQUIPMENTSTATIONEQUIPMENTWAYSIDEEQUIPMEN T'OBEOBEON-BOARD EQUIPMENTE xternalConnectionMOBILE NETWORKLANLANLANLANLANSDSDSDSDSDSDLANP roxyRail Signalling Solutions igor Silajev Wired Communication subsystem (backbone) The wired portion of the CBTC consists of a backbone network that provides IP network services between the central or wayside equipment It consists of one or more 100/1000 Mbps fibre optic Ethernet rings allowing exclusive full duplex use of a 100/1000 Mbps channel to each connected node. The network uses layer 2 switches to provide flat connectivity to all the application equipment.

3 It could also use layer 3 routers (or routing functionality in multi-purpose switches) to provide traffic protection and in some cases additional security CENTRALAPPLICATIONBACKBONE NETWORKBACKBONE SWITCHESWAYSIDEAPPLICATIONRail Signalling Solutions igor SilajevWireless Communication (wayside network) The wayside network utilizes the backbone switches to connect the WRU s (Wayside Radio Unit) to the overall network Groups of WRUs are connected in a ring topology. Each end of the ring has a bridge connection to a different backbone switch. This configuration requires a managed switch (that provides ring reconfiguring following a switch failure). If a single WRU or a single switch fails all the unaffected WRUs remain connected.

4 'SDOBESDRail Signalling Solutions igor SilajevOn-board Communication subsystem (vehicle) Each onboard network device is a modular component, with two (2) IEEE interfaces, as well as one CAN bus interface. CAN bus is provided for data transfer through the couplers. It requires only a single twisted pair wire and can operate in poorer transmission environments than Ethernet. VOBCIEEE x twisted pair copperCAN2 x twisted pair copperCANMRURFNDIEEE Signalling Solutions igor SilajevPhysical component of Communication system Mobile Radio Unit (MRU, OBRU, DCU) Station Adapter (SA) Wayside Radio Unit (WRU) Access Point (AP) Rail Signalling Solutions igor SilajevCBTC Automation Control Subsystems Central Control subsystem (System Regulation Servers -SRS): Man Machine interface Overview of tracks and Train positions and status Headway and schedule regulation Automatic and Manual Train Routing and scheduling Wayside Control subsystem (Zone Controller - ZC).

5 Zone Controller on the trackside is the recipient for all position messages sent from the trains within its region of Control and the status of the obstructions such as axle counter blocks, signals, switches, floodgates, guideway intruder detection. The ZC is responsible for route setting Based on the commands received from the Central Control subsystem. It supports fully bidirectional operation. On-board vehicle Control subsystem (Vehicle On-Board Controller VOBC): The vital component of the system is a Vehicle On-board Controller (VOBC) on the Train The Vehicle On-board Controller establishes the position of the Train on the guideway by detecting transponders located in the track bed, and uses the transponder data to extract information from the database The database on the Vehicle On-board Controller contains all relevant guideway information, including station stops, gradients, civil speed limits, switch locations.

6 Axle counter blocks locations and trackside signal Signalling Solutions igor SilajevOverview of all CBTC Control Subsystems VOBC & ZC SimulatorEnvironment SimulatorATS Workstation 2 ATS Workstation 1 Network PrinterTraining CentreDCSDCSTest TrackData RecorderATS WorkstationRelay RackCTFS witch MachinesSignalsPSD SimCrew SwDepot I/LInterring DCST rackside EquipmentAPsTranspondersProximity PlatesData LoggerInterlocking StationData RecorderDCSR elay RackCTFS witch MachinesSignalsPSDsCrew SwZone ControllerNon-Interlocking StationCTFPSDsCrew SwProximity PlatesTranspondersATS Schedule Display WorkstationATSW orkstationNetwork PrinterOCCDCST imetable Compiler Network PrinterWireless LANIEEE DCSCab ACab BMaintenance CentreDCSW ayside SLMDVOBC SLMDDCSD epot 30 C20 Existing Trains54 C30 New TrainsInterring DCST rackside EquipmentDIsDIsATS MaintenanceWorkstationNetwork PrinterATS Fault ReportWorkstationDepot MaintenanceWorkstationIPS ServerCrew Protection SwitchesATSS erversACEDCSZone Controller2oo3 VOBCGIDS/PIDSGIDS/PIDSR outer(Firewall)Depot Interlocking equipmentATS ServerACEDCS BackboneLine Controller WorkstationLine Controller WorkstationLine Controller WorkstationMimic DisplayRouter(Firewall)

7 External DevicesData Recorder/ViewerCertification AuthorityNetwork Monitoring SystemNetwork PrinterTerminal ServerATS Schedule Display WorkstationATSW orkstationNetwork PrinterBackup OCCDCST imetable Compiler Network PrinterBackup ATSS erversLine Controller WorkstationLine Controller WorkstationLine Controller WorkstationMimic DisplayRouter(Firewall)External DevicesData Recorder/ViewerCertification AuthorityNetwork Monitoring SystemNetwork PrinterTerminal ServerProvisioned for Future UpgradeLegend:Axle CountersRail Signalling Solutions igor SilajevCBTC Man Machine Interface capabilities Central Control Man Machine interface. Line overview Rail Signalling Solutions igor SilajevCBTC Man Machine Interface capabilities CBTC MMI operations menu Rail Signalling Solutions igor SilajevCBTC Man Machine Interface capabilities Assigning a Train Rail Signalling Solutions igor SilajevCBTC Man Machine Interface capabilities Schedule definition, assignment and adjustment Predefine different schedule for weekday, weekend, holiday, etc.

8 Predefine distribution of trains between buildups and reductions throughout the day Assign / clear predefined schedule for System Regulation Server to implement Apply automatic or manual global schedule slideRail Signalling Solutions igor SilajevTHALES CBTC implementationTHALES CBTC implementation worldwide: Canada Toronto Scarborough LRT and Subway Vancouver Canada-Line Vancouver SkyTrain Korea Busan-Gimhae Line Seoul Sin Bundang Line Malaysia/Asia Kuala Lumpur LRT II Beijing Line 4 Guangzhou Line 3 MTR Disneyland Resort, Hong Kong MTR Ma On Shan Rail , Hong Kong Wuhan LRT United Arab Emirates Dubai Metro: Green Line United Kingdom / Europe London Dockland London Underground: Jubilee Line Paris Line 13 USA AirTrain JFK Detroit DPM Las Vegas Monorail NYC Flushing Line Washington Dulles Airport Rail Signalling Solutions igor SilajevQuestions / Answers Q & A