(1) For the purpose of normal operations on a Single line or Twin Single Lines under sub-rule (i) of rule 63, the following procedure shall be followed, namely:—
(i) the train shall operate under the authority of cab signals under Coded Manual Mode or Automatic Mode (if signaling system permits) on the single line or on the respective line of twin single lines;
(ii) in case of failure of cab signals under Coded Manual Mode or Automatic Mode, the trains may be allowed to run under the Restricted Manual Mode, Run On Site Mode or Cut Out Mode, under Special Instructions.
(2) For the purposes of sub-rule (2) of rule 63, where a portion of a line is obstructed on any of the running lines, the Traffic Controller may, after consultation with the Chief Controller, decide to implement the single line working, in the following manner, namely:—
(i) Single line working on the unaffected track shall be achieved by fleeting of trains in groups in one direction at intervals decided by the Traffic Controller followed by a group of trains in the other direction;
(ii) the Traffic Controller, shall before the train passes in the reverse direction, inform to the Station Controller at each of the stations in the single line section;
(iii) the Station Controllers shall also closely monitor crowding on the platform in use and prepare to close entrances to the station if overcrowding becomes dangerous;
(iv) the Station Controllers at these stations shall inform passengers by visual and audible announcement and take such other measures as may be necessary to direct passengers on the correct platform;
(v) the Traffic Controller shall inform the Train Operators of all trains of the location and direction of the single line working;
4 THE GAZETTE OF INDIA : EXTRAORDINARY [PART II—SEC. 3(i)]
(vi) trains shall work under normal signaling including Automatic Train Operation in the normal direction of travel and in the case of reverse direction of travel, if signaling system permits, the train shall normally work under Automatic Mode or Coded Manual Mode and other Modes like Restricted Manual Mode, Run On Site Mode or Cut Out Mode may also be used for train operation in the reverse direction of travel, under Special Instructions;
(vii) when normal working is to be restored, the Traffic Controller shall inform the Station Controller at each station of the single line section, of the last train to pass the section in the reverse direction after which normal station operation shall be restored.