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… limit sign(s). CENTRALIZED TRAFFIC CONTROL SYSTEM (CTC) A system in which CTC rules apply. CONTROLLED BLOCK A block in CTC between consecutive controlled locations or points. …
8.233
… Rules 42/842, 43/843 and 849 are applicable on non-main track. (b) When designated by time table footnotes or special … instructions that TGBO and/or DOB are applicable on a track that is non-main track, protection of track work and track conditions may be …
78.574