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Sound Transit Light Rail

Sound Transit Light Rail. Downtown Seattle Transit Tunnel (DSTT). Communication Challenges. The Downtown Seattle Transit Tunnel (DSTT) presents a significant communications challenge: Passengers, buses, and trains must interact efficiently and safely.

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Sound Transit Light Rail

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  1. Sound Transit Light Rail

  2. Downtown Seattle Transit Tunnel (DSTT)

  3. Communication Challenges • The Downtown Seattle Transit Tunnel (DSTT) presents a significant communications challenge: • Passengers, buses, and trains must interact efficiently and safely. • Using multiple stations, buses and trains must share the same roadbed. • And everyone needs to know what is happening and when.

  4. Fiber Optic Public Address Integration End Result Closed Circuit Television Telephone LED Signage Operation Control Centers Security and Surveillance SCADA Communication Solutions • Integration of all communication systems, and a design for high availability, enables Sound Transit to meet their communication challenges.

  5. System Integration

  6. Backbone/WAN • Provides the communications infrastructure for: • Field Control System (FCS) • Central Control System (CCS) • Public Announcement and Visual Message Sign (PA/VMS) • Closed Circuit Television (CCTV) • Emergency/Office Telephone System • Access Control System (ACS)

  7. Backbone/WAN • A bi-directional, high bandwidth fiber optic SONET Ring/Wide Area Network (WAN) provides timely, reliable, and accurate voice, video, and data communications between Sound Transit stations and control centers. • Redundant: fire or other catastrophic events cannot destroy both communications paths or disconnect any more than one Station or facility from communications with either the King County Metro Link Control Center. Break

  8. Central Control System (CCS)

  9. Central Control System Map • The CCS displays an icon-based map across multiple screens. Operators can monitor and access devices in all stations throughout the DSTT.

  10. Vehicle communications Traction electrification system Intrusion detectors Fire alarms EMPs Station electrical equipment Fare collection equipment Flood detectors/sump pumps Communications equipment Radio amplifiers Access control devices Fire suppression system Central Control System (CCS) Monitors: Monitors and Controls: • Tunnel ventilation equipment • Station ventilation equipment • CCTV • Signal system devices • Emergency telephones • PA/VMS • Station lighting • Elevators/Escalators

  11. Field Control System (FCS) • The Field Control System is the bridge between DSTT devices and the Central Control System. • It collects information from networking, monitoring, and control devices. • It relies on many Programmable Logic Controllers (PLCs) for routine tasks. • The PLCs “talk” to a field server. • An Emergency Management Panel can communicate directly with the PLC system if the main communications backbone is disabled.

  12. CCS ACS EMP ICC CommunicationsBackbone/Wan Field Control System (FCS) Field Control System Bus PLCs Ventilation PLCs Field Servers FACP

  13. Field Control System (FCS) • FCS Interfaces with: • Central Control System • Integrated Communications Controller • Emergency Management Panel • Fire Alarm Control Panel • Access Control System • Tunnel Ventilation System

  14. Emergency Management Panel (EMP) An Emergency Management Panel (EMP) can request control of the Downtown Seattle Transit Tunnel communications system in an emergency situation. EMPs are located at station surface or mezzanine level entry points

  15. Closed Circuit TV (CCTV)

  16. Closed Circuit TV (CCTV)

  17. PA/VMS System

  18. Variable Message Signs (VMS)

  19. Emergency Telephone System ICC Workstation provides Telephone Control • Phones located throughout the Light Rail system. • Direct access to an ICC workstation or emergency operator. • Calls are recorded. • Emergency Telephone (ETEL) – Non-Public Access • Passenger Emergency Telephone (PET) – Public Access

  20. Emergency Telephone (ETEL) Blue Beacon Paging Speaker

  21. Emergency Telephone (ETEL)

  22. Passenger Emergency Telephone (PET)

  23. Networks • Control System Network (CSN): uses the Network Management System (NMS) and a series of virtual LANs to monitor/control devices and manage emergency telephones, PA/VMS, and CCTV • Office Services Network (OSN): manages public telephone, maintenance, and general computing – separated from CSN for security

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