Rule 509 — Instructions to Pass Signal Indicating Stop

1. (a)A movement must have instructions from the RTC to pass a block signal indicating Stop. If stopped at the signal indicating Stop, and no conflicting movement is evident, a crew member must immediately communicate with the RTC . EXCEPTION: Instructions are not required when a movement is required to re-enter a block occupied by a portion of their movement, however, the movement must proceed at REDUCED speed.
2. (b)When able to, the RTC will inform the crew member in writing: “There is no conflicting movement” After complying with Rule 513 where applicable, the movement need not stop at the signal but must positively identify the signal by number and the movement may proceed at RESTRICTED speed to the next signal or Block End sign.
3. (c)When unable to obtain the information that there is no conflicting movement in the block, and no conflicting movement is evident, the movement may, after complying with Rule 513 where applicable, move forward and must stop where its leading wheels are 100 feet past the Stop signal. After waiting 10 minutes and if there is still no evidence of a conflicting movement, the movement may proceed at RESTRICTED speed to the next signal or Block End sign.

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