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  1. ITV Report

London Underground signalling cabin for the Tube designated 'item of national historic interest'

Signalling cabin 'item of national historic interest'. Credit: TfL

A London Underground signalling cabin for the Tube has been designated as an item of national historic interest.

Signalling cabin 'item of national historic interest'. Credit: TfL

London Underground’s Circle and Hammersmith & City line signalling cabin at Edgware Road was picked out as important.

Signalling cabin 'item of national historic interest'. Credit: TfL

The network was originally built in 1926 and operated by the Metropolitan Railway – the world’s first underground railway and the predecessor to LU. The cabin is still in use.

Its mechanical “K-style” lever frame operates the interlocking of signals and points at the complex junction used by the Circle and Hammersmith & City lines.

A signalling operator controls this intricate system, with its many brass levers and interlockings, so that trains can leave on time