(1) (a) fixed signals shall be clearly visible to the loco pilots of trains approaching them and shall be placed immediately to the left of or above the line to which they refer unless otherwise authorised under special instructions;
(b) unless otherwise permitted by special instructions, where two or more lines converge, signals shall be placed on separate posts or a gantry;
(c) where signals are placed on a gantry, these shall be ,-
(i) so grouped that respective signals are easily distinguishable for each running line and are placed over the running line to which they refer, and
(ii) where placed on separate posts, so arranged that the extreme left hand signal refers to extreme left hand line and the second from the left refers to the next line from the left and so on.
(2) Hand signals shall be so displayed as to point it towards the loco pilot of the approaching train.
(3) On board, signals shall be displayed in the console in front of the loco pilot's seat in the driving cab of the locomotive.
B - Description of fixed Colour light Signals