The area of the railway controlled or supervised by a particular Signal BoxThe building in which the Signaller(s) is/are situated together with the control and indication system for the signalling. See also Signalling Centre. More
or control centreA Signal Box covering a large area, usually incorporating other operational functions. More, as defined by the Signalling PlanA longitudinally scaled or dimensioned track layout plan showing the Signalling Functions with their identities. It generally relates to a specific Signal Box c... More.