India's railway station which holds 'Guinness Book of World Records' | In pics
India's railway station which holds 'Guinness Book of World Records' | In pics
New Delhi railway station entered the Guinness book of world records for having the world's largest route relay interlocking system. Indian Railways carries over 25 million passengers daily (approx) which is perhaps more than the entire population of Australia, New Zealand and Tasmania put together.
New Delhi railway station holds the record for having the world’s largest route relay interlocking system, according to the 'Guinness Book of World Records'.
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The largest route relay interlocking system is at the main station in New Delhi. The system uses 11,000 relays allowing up to 1,122 signalled movements.
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Types of interlocking- Interlockings can be categorised as mechanical, electrical (electro-mechanical or relay-based), or electronic/computer-based.
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Panel Interlocking (PI) is the system used in most stations on Indian Railways. In this, the points and signals are worked by individual switches that control them. Route Relay Interlocking (RRI) is the system used in large and busy stations that have to handle high volumes of train movements.
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Concept of interlocking- The design process began with the concept of interlocking elements as its core for formal and programmatic development. The intent was to create adaptable systems that could be easily executed and constructed by anyone, allowing any future resident to quickly assemble their home with ease.
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Interlock devices offer several advantages for industrial safety, such as reducing human error and negligence, enhancing compliance with safety regulations and standards, improving productivity and efficiency, and preventing unauthorised or unqualified personnel from tampering with or operating the machine.
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Route relay interlock is the system used at large and busy stations having a large number of train movements. In this, an entire route through the station can be selected and all associated points and signals along the route can be set at once by pressing two buttons for receiving or dispatching trains.
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Interlocks and interlock systems can be classified into three main groups, based on the type of interconnection between the interlocks. These three groups or types are- mechanical, electrical, and key interlocks. Each of these types has its advantages when properly designed and applied.