Tunnel Telephone
Tunnel Telephone Project Description London Underground operates a system for Emergency Traction Current Discharge (System) – ETCDS, or ‘Tunnel Telephone’ (TT). The system is a pair of un-insulated ‘pinch-wires’ adjacent to each tunnel section and telephone handsets...
Crystal Palace Station Enhancement
Crystal Palace Station Enhancement Project Description The East London Line was extended north to Highbury & Islington, and south to Crystal Palace to relieve congestion at the existing central London stations. Work Streams CCTV – Based on a digital IP camera...
Platform to Train CCTV system OPO; District Line
Platform to Train CCTV System OPO; District Line Project Description Design, supply and installation of TtT (track to train) OPO (one person operation) systems at 33 stations (88 platforms) along the District Line. Work Streams ADComms designed, supplied, installed,...