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Solid State Interlocking

Solid State Interlocking (SSI) is the brand name of the first generation processor-based interlocking developed in the 1980s by British Rail's Research Division, GEC-General Signal and Westinghouse Signals Ltd in the UK. It was a forerunner to the modern computer-based interlocking (CBI) systems in widespread use today.

History & Technology

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Market penetration and future

Great Britain Western European Dingwall Radio Electronic Token Block Leamington Spa

24 related topics

History

Power signal boxes Electromechanically Electronics industry Solid-state electronics Processor

14 related topics

Technology

Safety-critical Signals Points AWS Track circuit

10 related topics

Overview

Computer-based interlocking British Rail's Research Division GEC-General Signal Westinghouse Signals Ltd

4 related topics

Topics to explore

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Overview

Computer-based interlocking
British Rail's Research Division British Rail Research Division
GEC-General Signal Alstom
Westinghouse Signals Ltd Westinghouse Rail Systems

Technology

Safety-critical Life-critical system
Signals Railway signal
Points Railroad switch
AWS Automatic Warning System
Track circuit
Relays Relay
EPROMs EPROM
Twisted pair
Fibre-optic cable
Pulse-code modulation

Market penetration and future

Great Britain
Western European Western Europe
Dingwall Dingwall railway station
Radio Electronic Token Block
Leamington Spa Leamington Spa railway station
Docklands Light Railway
ATO Automatic train operation
ATP Automatic train protection
East Coast Main Line
York
Berwick-upon-Tweed
Marylebone Marylebone station
Liverpool Street Liverpool Street station
Network Rail
Belgium
Portugal
SNCF
Transport Asset Holding Entity
West Bengal
India
Mean time between failure
Siemens
Westlock Westlock Interlocking
Arbitrary limit Zero-one-infinity rule

History

Power signal boxes Signalling control
Electromechanically Electromechanics
Electronics industry
Solid-state electronics
Processor Central processing unit
Pilot scheme
Safety impact Functional safety
British Rail
GEC General Signal General Electric Company
Westinghouse Signals Wabtec
Privatisation of British Rail
Railtrack
Graphical user interfaces Graphical user interface
Fibreoptic Optical fiber

Bibliography

The Institution of Railway Signal Engineers

Advanced semantic analysis

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Map overview Semantic statistics

Solid State Interlocking

Nodes59

Edges58

Triples16

Avg. degree1.97

Density0.033898

Components1

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Solid State Interlocking

Top relations

related to Bibliography · 4

Solid State Interlocking → IRSE, Railway Signal Engineers, Stratton, The Institution

Important terminology Word statistics

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Important terminology

ssi interlocking signal citation needed data equipment first used tfms developed british use signals three system one railway installed across

Entity relationships Subject–Predicate–Object triples

Subject	Predicate	Object	Confidence	Src
signals	instance of	as this is used for the technician's terminal only.External hardwareTrackside equipment	0.80	text
points are connected to nearby 'trackside functional modules	instance of	as this is used for the technician's terminal only.External hardwareTrackside equipment	0.80	text
signals	instance of	External hardwareTrackside equipment	0.80	text
points are connected to nearby 'trackside functional modules	instance of	External hardwareTrackside equipment	0.80	text
Hurstville - Oatley	instance of	where it is installed at busy locations	0.80	text
North Sydney	instance of	where it is installed at busy locations	0.80	text
Wyong	instance of	where it is installed at busy locations	0.80	text
Granville	instance of	where it is installed at busy locations	0.80	text
Enfield	instance of	where it is installed at busy locations	0.80	text
Blacktown	instance of	where it is installed at busy locations	0.80	text
Olympic Park	instance of	where it is installed at busy locations	0.80	text
others within the Transport Asset Holding Entity network	instance of	where it is installed at busy locations	0.80	text

Related concept clusters Concept neighborhoods

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