Editing Harrow-on-the-Hill signal cabin
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==Future== | ==Future== | ||
Harrow-on-the-Hill signal cabin will be closed as part of the 4LM programme. The combined signalling of the entire SSR made up of the Circle, Hammersmith & City, District, and Metropolitan lines will transfer in phases to [[Hammersmith Service Control Centre]] (SCC), fulfilling the ambition of signal concentration and automation that dates back to the 1960s. 4LM will also see the rollout of [[Communications Based Train Control]] (CBTC) using [[Thales]]' SelTrac, which will do away with most auxiliary colour light signals. Trackside signals will, however, remain in 'interoperable' areas where non-CBTC fitted rolling stock operates over the SSR, in this case being [[Chiltern Railways]] services over the Main Line between Harrow South Junction and Mantles Wood Crossing just beyond [[Amersham]]. 4LM has been split into 14 Signal Migration Areas (SMA), of which Harrow-on-the-Hill signal cabin falls within SMA 9 between Preston Road, West Harrow and Moor Park.<ref> "Underground News". London Underground Railway Society. 706: 572. October 2020.</ref> | Harrow-on-the-Hill signal cabin will be closed as part of the 4LM programme. The combined signalling of the entire SSR made up of the Circle, Hammersmith & City, District, and Metropolitan lines will transfer in phases to [[Hammersmith Service Control Centre]] (SCC), fulfilling the ambition of signal concentration and automation that dates back to the 1960s. 4LM will also see the rollout of [[Communications Based Train Control]] (CBTC) using [[Thales]]' SelTrac, which will do away with most auxiliary colour light signals. Trackside signals will, however, remain in 'interoperable' areas where non-CBTC fitted rolling stock operates over the SSR, in this case being [[Chiltern Railways]] services over the Main Line between Harrow South Junction and Mantles Wood Crossing just beyond [[Amersham]]. 4LM has been split into 14 Signal Migration Areas (SMA), of which Harrow-on-the-Hill signal cabin falls within SMA 9 between Preston Road, West Harrow and Moor Park.<ref> "Underground News". London Underground Railway Society. 706: 572. October 2020.</ref> | ||
== References == | == References == |