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B&O/C&O 1969 Operating Rules - Rule B-287 - Slow-Approach Slow Rule B-287.

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NAME-SLOW-APPROACH SLOW
INDICATION-SLOW SPEED THROUGH CROSSOVERS, TURNOUTS, SIDINGS, INTERLOCKING LIMITS, AND OVER POWER SWITCHES. TRAIN OR ENGINE MAY THEN PROCEED AT MAXIMUM AUTHORIZED SPEED, IF CONDITIONS PERMIT, BUT MUST APPROACH THE NEXT SIGNAL AT NOT EXCEEDING SLOW SPEED
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