87. (a) Where the traffic at any Station is worked under special instructions, the Signalman, before lowering the Signals for a train to enter the Station, must satisfy himself that the spacial instructions have been complied with, and that the Line is clear to the point the train has to run to; but if he be in doubt, or if there be another train at the platform to which the train has to run, he must stop the train, and, except where Calling-on Arms are in use, caution the Engine-driver, both verbally and by Green Hand Signal, held steadily in the hand, before he allows it to enter the Station.
(b) Where the Home Signal is such a distance from the Signal-box that it is not possible for the Signalman to communicate verbally with the Driver when the engine is standing at the Home Signal, the Signalman must, after bringing the train to a stand at the Home Signal, lower it to allow the Engine-driver to draw to his Box, and must stop the train at his Box by exhibiting a Red Flag by day and a Red Light by night. The Engine-driver must then be vberbally instructed to proceed cautiously to the rear of the previos train, and a Green Flag by day and a Green Light by night,, held steadily in the hand, must be exibited by the Signalman to the Engine-driver.
(c) Where Calling-on Arms are provided, it will not be necessary to stop the train at the Signal-box, but it must be, unless instructions are issued to the contrary, be brought to a stand at the Home Signal before the Calling0on Arm is lowered to allow the train to proceed as far as the Line is clear.
88. At places where a train is allowed to proceed towards the rear of another train, and it is necessary, after the first train has been started, that it should be again stopped, care must be taken not to stop the Engine-driver of the first train until the Engine-driver of the second train has been advised of what is about to be done.
89. (a) When a Signal is lowered or turned off to allow to allow a train to run upon a Line in a Station or upon a Siding, or to leave a Station or Siding, and a second train is following, the Engine-driver of the second train must follow at suchb a distance as will enable him to avoid colliding with the first train in the event of it being stopped, and he must bring his train to a stand at the Signal, and not pass it until it has been replaced at Danger, and again lowered or turned off.
(b) When a Signal is lowered or turned off to allow a second train to leave a Station or Siding to run towards a train ahead of such Signal, the Engine-driver of the second train must proceed at such a speed as to be able to stop before reaching the train ahead of the Signal.
