A direct communication channel to alert a SignallerA person responsible for the operation of the Signalling System, to safely control the passage and regulation of trains, usually located in a Signal Box. More in an adjacent Signalling
Centre to an emergency. Provided in Track Circuit BlockA method of working trains in a section of line where safety is ensured by the use of continuous Track Circuits or other means of automatic train absence detect... More territory as a
replacement for emergency bell communication.A direct communication channel to alert a SignallerA person responsible for the operation of the Signalling System, to safely control the passage and regulation of trains, usually located in a Signal Box. More in an adjacent Signalling
Centre to an emergency. Provided in Track Circuit BlockA method of working trains in a section of line where safety is ensured by the use of continuous Track Circuits or other means of automatic train absence detect... More territory as a
replacement for emergency bell communication.