217. (a) When a train is stopped by an accident or from any cause (unless it has arrived at or passed the Home Signal), the Guard, if there be only one, or the Rear Guard if there be more than one, must immediately go back at least three-quarters of a mile, unless he arrive at a Signal-box within that distance, plainly exhibiting his Hand Danger Signal, to stop any following train, and, in addition to his Hand Signals, he must take Detonators (to be used by day as well as by night), which must be placed upon the Line on which the stoppage has happened as follows, viz. :-
1 Detonator a quarter of a mile from his train.
1 Detonator half a mile from his train, and
3 Detonators, ten yards apart, not less than three-quarters of a mile from his train;
and must also continue to exhibit his Hand Danger Signal to stop any coming train.
(b) If the Guard arrive at a signal-box within or at about three-quarters of a mile from his train, he must place three Detonators on the Line opposite the Box, and must also instruct the Signalman to keep his Signals at Danger to protect the line which is obstructed. He must then return to his train or take such other steps as may be necessary to deal with the obstruction.
(c) The Detonators must not be taken up until intimation has been received that the obstruction has been removed; and when the "Is Line Clear" Signal for the next train which has to pass through the Section has been accepted by the Signal-box in advance, the train must be stopped, and the Engine-driver must be advised of the circumstances, and instructed to travel cautiously through the Section.
(d) Should the distance of not less than three-quarters of a mile fall within a Tunnel, or close to the mouth of a tunnel nearest to the obstruction, or in any other position where, owing to the formation of the line, or to some other circumstance, the Engine-driver of an approaching train would be unable to abtain a good and distant view of the Hand Danger Signal, then, unless there be a Signal-box between the obstruction and the Tunnel, the Signal must be exhibited and Detonators must be placed on the Line at the end of the Tunnel farthest from the obstruction, or at such distance over and above the prescribed distance of not less than three-quarters of a mile as may be necessary to ensure the Engine-driver obtaining a good and distant view of such Signal.
(e) Before the Guard in going back enters a Tunnel he must place three Detonators on the Line, ten yards apart, at the end of the Tunnel nearest to the obstruction.
(f) In order as quickly as possible to secure the safety of the Line as well as to obtain assistance and to regulate the working of the traffic, if the Signal-box in the rear of the obstruction be the nearer, the Guard, after protecting his train by Detonators, as directed above, must go to such Signal-box, and advise the Signalman of the obstruction, but if the Signal-box in advance of the obstruction be the nearer or can be more quickly arrived at, the second Guard, if there be more than one Guard, or the Fireman, if there be not more than one Guard, must immediately go to the Signal-box and advise the Signalman of the cause of the obstruction.
(g) If the engine be able to run forward it must be detached, and the Driver must proceed to the Signal-box in advance for the purpose of carrying out the provisions of the previous paragraph, having, if required, firs obtained from the Rear Guard an order to return on the wrong Line, as provided for in Rule 221.
(h) If the Guard obtain assistance from the rear he must ride on the engine of the assisting train, and point out to the Engine-driver the position of the disabled train. The assisting train must run at reduced speed, and great caution must be observed by all concerned.
(i) If the engine obtained from the rear has to return on the wrong line the Guard must, before starting with the assisting engine, first obtain the prescribed "Wrong Line Order" inaccordance with Rule 222.
(j) Except as above stated, the Guard must not return to his train until recalled by the Engine-driver sounding the whistle of his engine, and when recalled, he must leave the three most distant Detonators, and retun to his train, taking up the other Detonators on his way. Should he be recalled before reaching the prescribed distance, he must then place on the rail three Detonators, ten yards apart, and return to his train, taking up the other Detonators on his way.
(k) Should the stoppage or faiure occur to an engine not attached to a train, the Fireman must immediately go back and act in the way prescribed for the Guard.
(l) Where Parallel Lines are so near together that a vehicle running on either Line fouls the other, Detonators must be placed on each line.
(m) Where ther are more than two Lines, and an accident causes more than one to be fouled, the necessary steps must be taken to protect all the Lines obstructed.
218. (a) Should an accident to a train foul, or be dangerously near to, any Line used by trains running in the opposite direction, in addition to the Guard going back to protect the train in accordance with Rule 217, the Engine-driver of the disabled train must immediately detach his engine, if it be able to run forward, and proceed with it not less than three-quarters of a mile from the scene of the accident, and there leave his Fireman with Detonators to act as laid down in Rule 217 to protect the opposite line; the Driver must then go forward with his engine to the nearest Signal-box and inform the Signalman of the obstruction, in order that any train running on the opposite line be stopped until the obstruction has been removed. In the course of the journey fron the break-down to the Signal-box the Engine-driver must stop any train that may be approaching on the opposite Line by souding his whistle, or the break-whistle where provided, exhibiting the necessary Hand Signals, and, in addition, showing a Red Head Light at night.
(b) Should the engine be disabled, or should there be any delay in detaching it, the Fireman must at once go forward and place the Detonators on the opposite line, and also perform the duties of the Engine-driver as prescribed above.
(c) Should an accident happen to an engine, or a train without a Guard, causing the obstruction of both Lines, the Engine-driver must immediately send his fireman forward to stop trains travelling on the opposite Line, and must himself go back or send some other competent person, so that the obstruction may be protected in both directions.
219. (a) Should an accident to a train accompanied by only one Guard cause the obstruction of both Lines, and the Engine-driver run forward without being aware of the accident, the guard must, if he can obtain the services of a competent person, send him forward to protect the opposite Line to that on which the train was running, and himself go back as directed in Rule 217.
(b) In the event of no competent person being at hand, the Guard must first go forward as quickly as possible, exhibiting his Hand Danger Signal, and place Detonators on the opposite Line to that on which his train was running, as under, viz.:-
1 Detonator a quarter of a mile from the obstruction.
1 Detonator half a mile from the obstruction, and
3 Detonators, ten yards apart, not less than three-quarters of a mile from the obstruction;
and then return and protect the rear of his train as prescribed in Rule 217.
(c) Should the Guard in going forward arrive at a Signal-box he need not go to the prescribed distance, but must place three Detonators on the opposite Line at the Box, inform the Signalman of the circumstances, instruct him to keep the necessary Signals at Danger to protect the obstruction, and then return and protect the rear of his train as prescribed in Rule 217.
(d) If the Block System has temporarily failed, the Guard must use his discretion as to which Line he protects first, having regard to all the circumstances, but he must use his best exertions to provide for the protection of both Lines with as little delay as possible.
220. The Engine-driver on seeing a Green Signal waved slowly from side to side from a Signal-box, must understand that his train is divided, and must exercise great caution by looking out for the second portion, and unless he has reason to believe the Line is not clear ahead, must not stop the portion attached to his engineuntil he is satisfied that the rear portion has been stopped, or is running very slowly. He must, however, observe and obey any Signals that may be exhibited against him.