European Railway Traffic Management System (ERTMS) Presentation

European Railway Traffic Management System (ERTMS) Presentation ERTMS is a major industrial project developed by eight UNIFE members – Alstom Transport, Ansaldo STS, AZD Praha, Bombardier Transportation, CAF, Mermec, Siemens Mobility and Thales – in close cooperation with the European Union, railway stakeholders and the GSM-R industry.    What is ERTMS ?  The European Rail Traffic Management System […]

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RAILWAY SIGNALLING SWITCH & CROSSING COMPONENTS     

RAILWAY SIGNALLING SWITCH & CROSSING COMPONENTS          

RAILWAY SIGNALLING SWITCH & CROSSING COMPONENTS    SWITCHES & CROSSINGS Commonly known as S&C Defined as track components that exist to provide a means whereby trains may be directed from one track or route to another track or route. Consist of : one (or more) sets of switches          common (or acute) […]

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Railway Signalling Correlation & Correlation Waiver Presentation 

Railway Signalling Correlation & Correlation Waiver Presentation 

Railway Signalling Correlation & Correlation Waiver Presentation  Purpose of Correlation (quotes from NR/L2/SIG/11201 mod A7) Correlation of signalling records and equipment and wiring on site is required to: Check the accuracy of source records prior to any design alteration; To check that records match the actual equipment and wiring at the site they represent. This means […]

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Railway Signalling Track Circuit Interrupters Presentation

Railway Signalling Track Circuit Interrupters Presentation Definition * Catch points and Trap points are types of turnout which act as railway safety devices. *  Catch Points Points provided to derail vehicles running back on rising gradients. The points may only be Un-worked if traffic is in one direction  only. Catch points are used to derail vehicles which are out of control on steep slopes (known as runaways). *  […]

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Railway Signalling Equipment Treadle Presentation

Railway Signalling Equipment Treadle Presentation What is Treadle ? A treadle is a mechanical or electrical device that detects that a train axle has passed a particular location. They are used where a track circuit requires re-inforcing with additional information about a train’s location, such as around an automatic level crossing, or in an annunciator circuit, that sounds a warning […]

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Railway Signalling Train Stop Equipment Presentation

Railway Signalling Train Stop Equipment Presentation What is Train stop :    Train stop is a train protection device that automatically stops a train if it attempts to pass a signal at danger or (in some applications) if it attempts to pass at an excessive speed on the approach to all terminal and bay platforms . Raised (or effective) State (of trainstop) […]

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Train Protection & Warning System (TPWS) Basic Concept

Train Protection & Warning System (TPWS) Basic Concept

Train Protection & Warning System (TPWS) Basic Concept :- Presentation TPWS is a system designed to stop train: * Passing A Signal At Danger Without Authority. * Approaching A Signal At Danger Too Fast. * Approaching Speed Restriction Too Fast. * Approaching Buffer Stop Too Fast. TPWS consists of two sensors: * Train Stop Sensor (TSS) * […]

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