Rules

454. Automatic Cab Signal System supplements automatic block signals in governing the use of blocks, but does not supersede the superiority of trains, nor dispense with the observance of rules. governing the use of automatic block or other signals and rules whenever and wherever they may be required, except as prescribed by Rule 456.

455. When cab signal indication changes to a more restrictive indication, engineer must acknowledge with acknowledging device.

456. When a train is proceeding after having been stopped by a block signal, or is proceeding on a Permissive indication of a block signal, if cab signal changes to a less restrictive indication, train may proceed in accordance with indication received after it has moved its length beyond point where cab signal changed.

Exception: Rule 456 does not apply when proceeding after having been stopped by a Flashing Stop-and-Proceed indication. See Rule 240 (C).

457. When cab signal indication does not correspond with block signal indication, engineer must be governed by the most restrictive indication displayed by either signal, and must report the fact to train dispatcher from first available point of communication, giving signal number and engine number.

When cab signal indication does not correspond with block signal indication for two consecutive blocks, cab signal may be considered inoperative. If previous advice has been received from train dispatcher or by bulletin of inoperative cab signal within designated limits, train must proceed within those limits in accordance with second and third paragraphs of Rule 458.

INDICATION Proceed

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458. When a cab signal device becomes inoperative, train may proceed in accordance with block signal indications but not exceeding 40 miles per hour to the next available available point of communication where report must be made to train dispatcher, who will instruct as to cutting out cab signal devices and further movement of train.

When cab signal devices have been cut out, train may proceed in accordance with block signal indications but not exceeding 79 miles per hour and as much slower as rules or conditions require.

While so proceeding, if train encounters a block signal displaying Stop, Stop-and-Proceed or Permissive indication, or light not burning on a block signal, train must stop. After stopping, train must wait for change of signal indication and if the signal does not change to a less restrictive indication within three minutes, it may be assumed that the block signal is inoperative and the train may proceed complying with the block signal indication.

461. When engineer takes charge of an equipped engine in cab signal territory or enters cab signal territory, he must know that cab signal devices are cut in.

Departure tests must be made by engineer before entering cab signal territory or he must know that Form 2415 is valid.

102. When a train becomes disabled or is stopped suddenly by an emergency application of the brakes or other causes, a lighted red fusee must be immediately displayed on adjacent track at front and rear of train, and adjacent track as well as tracks of another railroad that are liable to be obstructed must immediately be protected in both directions in accordance with Rule 99 until it is ascertained they are safe and clear for the movement of trains. After lighted fusee has been displayed at front of train, headlight must be extinguished.

In such cases, it must be determined by inspection that the train involved and the track to be used are safe for the train to proceed. Train involved must not proceed nor may flagmen be recalled until engineer has been definitely advised by conductor that it is safe to do so.

A train on an adjacent track must not pass the disabled train unless it is preceded by a flagman or unless definitely assured by the conductor of the disabled train that the track is clear and it is safe to proceed.

462. Cab signal devices must not be cut out while in cab signal territory without authority.

On an equipped engine with three-position acknowledging device, use of cut-out position is prohibited while operating within cab signal territory, except when authorized.

When seals on cab signal devices are broken, or found broken or missing, report must be made promptly.

464. If the cab warning whistle sounds longer than 6 seconds, another member of crew in the cab, must go to the engineer immediately and ascertain cause, and when conditions require, must take immediate action to stop train.

465. If cab signal whistle fails to sound when cab signal changes to a more restrictive indication, Rule 458 must be complied with.