TETRA IN A MASS RAPID TRANSIT ENVIRONMENT (Singapore) Presented by: Lee Thong Perng

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

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

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.”

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.

Present Development N MRT No. of lines 3 Route length (km) 109 North-South Line North Est Line East-West Line Existing North-South, East-West Lines, Changi Airport Extension and North-East Lines have 67 stations and cover more than 109 km. MRT No. of lines 3 Route length (km) 109 No. of stations 67 No. of depot 4

Development Y2010 N Circle Line Length: 172 km Stations: 139 Completion: (In 3 Phases) 2007/2008/2010 Circle Line Circle Line Projects are due for completion before 2010 adding 29 new stations and a further 33.5 km. Length: Stations: 172 km 139 N

Existing North-South, East-West Lines, Changi Airport Extension and North-East Lines have 67 stations and cover more than 109 km.

Rail Transit Development Programme (Under Study) Rail Transit System By Y2015 BKL JRL ETL N

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

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.

Fully Automated MRT Fully automatic operation requires that all functions of the driver be automated. Operation Control Centre must become the driver’s 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.

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

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

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

Radio Technology Why TETRA ?

Why TETRA ? Frequency Economy Security for Critical Data 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.

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).

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

Flexible Communication Trainborne Alarms Emergency Broadcast to passengers Please Stay Calm ……. Please Stay Calm Help is on the way ….. Trainborne Display Live PA Broadcast Combined Voice & Data

Why TETRA ? Contributes to High Service Availability Remote Monitoring and Diagnostics. Efficient Incident Management.

for Incident Management Dynamically Grouped Calls Grouped Data or Voice Communications for Incident Management Base Station Incident Area

for Incident Management Dynamically Grouped Calls Grouped Data or Voice Communications for Incident Management Base Station Incident Area

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.

Emergency Communication PEC: Passenger Emergency Communication Lower Priority On Hold Higher Priority Control Centre PEC Low priority calls Passenger

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.

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.

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

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

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

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.

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.

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.

Thank You