Railways installed Asia’s largest interlocking system in Kharagpur

The railways have installed and put in operation, Asia's largest solid state interlocking (SSI) system in Kharagpur, enabling station masters to set upto 800 different routes for trains in a matter of minutes.

Interlocking is a railway signal apparatus that prevents conflicting movements of trains through an arrangement of tracks such as junctions or crossings.

Installed at a cost of Rs 39 crore, the cutting-edge technology, which replaces the pre-1989 route relay system that only allowed operators to set maximum 423 routes, ensures that no cross-movement takes place, according to a railway ministry statement.

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