TETRA IN A MASS RAPID TRANSIT ENVIRONMENT Singapore

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TETRA IN A MASS RAPID TRANSIT ENVIRONMENT(Singapo
re)

• Presented by
• Lee Thong Perng

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Singapore
23 km
42 km

• Population 4.2 m
• Land Area 685 km2
• 707,000 vehicles
• 3,100 km of roads
• 140 km rail network

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Development Along MRT Corridors

• Town planners decentralised the population into
  New Towns away from city centre, but connecting
  them by an efficient transport system
• Concentrate the highest density developments
  around major transport nodes (MRT stations)
• Economic benefits
• stimulates investment
• creates employment
• enhances land values

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The Land Transport Authority

• The Land Transport Authority (LTA) is the
  provider and owner of all road and rail
  infrastructure.
• Our Mission To provide an efficient and cost
  effective land transport system for different
  needs.

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What is Mass Rapid Transit ?

• A passenger carrying railway with capacity in
  excess of 1500 persons per train.
• Underground and Aboveground.
• Frequent train services.
• Short station stopovers.
• The most efficient means of moving people in an
  urban environment.

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Present Development
North-South Line
North Est Line
East-West Line
MRT No. of lines 3 Route length
(km) 109 No. of stations 67 No. of
depot 4
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Development Y2010
Circle Line Completion (In 3 Phases) 2007/2008/2
010
Circle Line
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(No Transcript)
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Rail Transit Development Programme
(Under Study)
Rail Transit SystemBy Y2015
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The Singapore MRT

• The current MRT Network is operated by Singapore
  Mass Rapid Transit Ltd (SMRT) and Singapore Bus
  Service Transit Ltd (SBST).

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The Modern MRT

• Highly Automated.
• Increasingly Reliant on Fail-Safe Computer Based
  Systems.
• Decreased Staffing Levels demands more effective
  means of communication.
• Highly Reliable and Flexible Radio Communication
  is required for effective command and control
  purposes.

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Fully Automated MRT

• Fully automatic operation requires that all
  functions of the driver be automated.
• Operation Control Centre must become the drivers
  eye.
• Efficient data transmission plays a key role in
  rapid indication and diagnosis of train-borne
  system faults.
• Consistently clear communication with passengers
  is essential at all times.

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Radio Requirements

• Digital Technology
• Benefits from Digital Signal Processing.
• Robust and Reliable Communication Link.
• Combined Voice and Data Services
• Simultaneous Voice and Data Transmission.

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Radio Requirements

• Automated Resource Management
• Bandwidth Occupancy only when Needed.
• Increased Capacity through Shared Resources and
  Trunking Schemes.

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Radio Requirements

• Ease of Expansion
• Modular System.
• Support Future Network and Channel Growth.
• Advanced Networking Capabilities
• Inter-working with Other Networks.

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Radio Technology

• Why TETRA ?

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Why TETRA ?

• Frequency Economy
• Interleaving 4 Channels in a single 25kHz Carrier
  via TDMA scheme.
• Security for Critical Data
• Data Integrity through Forward Error Correction.
• Consistent Voice Quality
• No Analogue Circuit Degradation Caused by Noise
  and Distortion.
• Less User Frustration and Stress.

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Why TETRA ?

• Flexible Communications
• Supports both Voice and Data applications.
• Efficient Command and Control (fast call set-up,
  subscriber identification, priority management,
  individual, group and broadcast calls).

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Why TETRA ?

• Automated Voice/Data Traffic Routing and Network
  Flexibility
• Software Based Configurable Architecture.
• Trunked System Controller.
• Roaming between Systems.

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Flexible Communication
Trainborne Alarms
Emergency Broadcast to passengers
Please Stay Calm .
Trainborne Display
Live PA Broadcast
Combined Voice Data
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Why TETRA ?

• Contributes to High Service Availability
• Remote Monitoring and Diagnostics.
• Efficient Incident Management.

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Incident Management
Grouped Data or Voice Communications for Incident
Management
Base Station
Incident Area
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Incident Management
Grouped Data or Voice Communications for Incident
Management
Base Station
Incident Area
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Voice Traffic

• Public Address Announcement from Control Rooms to
  Trains.
• Passenger Communication with Control Rooms During
  Emergencies.
• Automatic Telephone Patch to PABX Subscribers.
• Patch to Station PA Systems.
• Communication amongst operation and maintenance
  staff.

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Emergency CommunicationPEC Passenger
Emergency Communication
Lower Priority
On Hold
Control Centre
PEC
Low priority calls
Passenger
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Data Services

• Train-borne CCTV Selection from Control Rooms.
• Remote Triggering of Train-borne Voice and Text
  Messages.
• Updating of pre-stored Train-borne Text and Voice
  Message Libraries.

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Data Services

• Trainborne Passenger Information Display Data
  from Control Rooms.
• Trainborne PA Control from Control Rooms.
• Train Fault and Diagnostic Data from the Trains
  to Control Room and Maintenance Centres.

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Remote Data Upload/Download
Voice Comm.
Data Files Download
Crew Member
Depot Control Centre
Train Fleet
Alarm Data
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Essential Features

• Open Standard Interfaces
• Voice Communication across Multiple Virtual
  Private Networks.
• Interconnections with other TETRA compliant
  Networks.
• Multi-Vendor Support.
• Operational Flexibility
• Software Control of All Aspects.

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Typical Radio System Connectivity
Train
Train
Train
Depot
PSTN
Station
Control Centre
Depot Control
Station
Portable
ISI
Other Networks
Portable
Portable
Portable
Station Boundary
Station Boundary
Train
With Authorisation
Direct access
Trunk Line
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Essential Features

• Easily Upgradable, Scaleable, Expandable
• Programmable Options provide Flexibility.
• Fully Synthesised, not Hard-wired.
• Modular Hardware Design.
• Ease in Migration of System Control
• Control Functions can be allocated at any
  Dispatcher Location through Soft Configuration.

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Conclusion

• LTA has chosen TETRA for the following main
  reasons
• Feature Rich Radio System.
• Provides Secure and Highly Reliable Concurrent
  Voice and Data Communications.
• Highly Flexible and Expandable Catering for
  Future Needs and Network Expansions.
• Modular and Upgradable Software based System
  Protects the Investment.

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Conclusion

• It is for these reasons that Singapore has chosen
  TETRA as the preferred technology to support the
  operation of the Singapore MRT operations.
• TETRA is likely to be the choice for future MRT
  lines as the transit infrastructure in Singapore
  continues to grow rapidly.

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• Thank You