Transcript TETRA IN MASS RAPID TRANSIT ENVIRONMENT

TETRA IN A MASS RAPID
TRANSIT ENVIRONMENT
(Singapore)
Presented by:
Lee Thong Perng
Land Transport
Authority
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
Land Transport
Authority
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
Land Transport
Authority
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.”

Land Transport
Authority
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.

Land Transport
Authority
Present Development
No. of lines
Route length (km)
No. of stations
No. of depot
MRT
3
109
67
4
Land Transport
Authority
Development Y2010
Circle Line
Completion:
(In 3 Phases)
2007/2008/2010
Circle
Line
Length: 172 km
Stations: 139
Land Transport
Authority
Land Transport
Authority
Rail Transit Development Programme
Rail Transit System
By Y2015
(Under Study)
JRL
Land Transport
Authority
The Singapore MRT

The current MRT Network is operated by
Singapore Mass Rapid Transit Ltd (SMRT)
and Singapore Bus Service Transit Ltd
(SBST).
Land Transport
Authority
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.

Land Transport
Authority
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.

Land Transport
Authority
Radio Requirements
Digital Technology
Benefits from Digital Signal
Processing.
Robust and Reliable
Communication Link.
 Combined Voice and Data Services
Simultaneous Voice and Data
Transmission.

Land Transport
Authority
Radio Requirements

Automated Resource Management
Bandwidth Occupancy only when
Needed.
Increased Capacity through Shared
Resources and Trunking Schemes.
Land Transport
Authority
Radio Requirements

Ease of Expansion
Modular System.
 Support Future Network and Channel
Growth.


Advanced Networking Capabilities

Inter-working with Other Networks.
Land Transport
Authority
Radio Technology
Why TETRA ?
Land Transport
Authority
Why TETRA ?

Frequency Economy


Security for Critical Data


Interleaving 4 Channels in a single 25kHz
Carrier via TDMA scheme.
Data Integrity through Forward Error
Correction.
Consistent Voice Quality
No Analogue Circuit Degradation Caused
by Noise and Distortion.
 Less User Frustration and Stress.

Land Transport
Authority
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).

Land Transport
Authority
Why TETRA ?

Automated Voice/Data Traffic Routing
and Network Flexibility
Software Based Configurable
Architecture.
 Trunked System Controller.
 Roaming between Systems.

Land Transport
Authority
Flexible Communication
Trainborne Alarms
Emergency Broadcast
to passengers
Please Stay Calm
Help is on the way …..
Trainborne Display
Combined Voice & Data
Live PA Broadcast
Land Transport
Authority
Why TETRA ?

Contributes to High Service Availability
Remote Monitoring and Diagnostics.
 Efficient Incident Management.

Land Transport
Authority
Incident Management
Grouped
Data or Voice
Communications
for Incident
Management
Dynamically
Grouped
Calls
Base
Station
Incident Area
Land Transport
Authority
Incident Management
Grouped
Data or Voice
Communications
for Incident
Management
Dynamically
Grouped
Calls
Base
Station
Incident Area
Land Transport
Authority
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.

Land Transport
Authority
Emergency Communication
PEC: Passenger Emergency Communication
Lower Priority
PEC
Low priority
calls
Passenger
On Hold
Control Centre
Land Transport
Authority
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.

Land Transport
Authority
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.

Land Transport
Authority
Remote Data Upload/Download
Voice
Comm.
Data Files Download
Crew
Member
Depot Control Centre
Train Fleet
Alarm Data
Land Transport
Authority
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.
Land Transport
Authority
Typical Radio System Connectivity
Train
Train
Depot
PSTN
Train
Station
Control
Centre
Portable
Depot Control
Station
ISI
Portable
Station
Boundary
Portable
Other
Networks
Portable
Station
Boundary
Train
With Authorisation
Trunk Line
Land Transport
Direct access
Authority
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.
Land Transport
Authority
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.

Land Transport
Authority
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.
Land Transport
Authority
Thank You
Land Transport
Authority