London Underground Cobourg Street Signalling Control Room

London Underground Cobourg Street Signalling Control Room The London Underground use to have signal boxes all over each and every Line and in time they have all moved it in to a Signalling Control Room the lines covered is northern line from Morden to Edware and High Barnet via either te City or Charring Cross branch and the Victoria Line from Brixton to Walthamstow on shifts was 5 staff on the northern line and 2 on the Victoria line on 3 shift system manly 07-00 to 1500 and 15-00 to 23-00 and 23-00 to 07-00