RULES

FOR THE

OPERATION AND MAINTENANCE

OF

INTERLOCKING PLANTS


ENGINEMEN AND TRAINMEN

RULE 900A - Home Signals

COLOR RED.
OCCASION FOR USE Route is not clear.
INDICATION Stop.
NAME Stop signal.
 

RULE 900B - Home Signals

COLOR GREEN
OCCASION FOR USE Route is clear.
INDICATION Proceed
NAME Clear signal.
 

RULE 900C - Home Signals

COLOR RED.
OCCASION FOR USE Route is not clear.
INDICATION Stop.
NAME Stop signal.
 

RULE 900D - Home Signals

COLOR Upper arm GREEN, lower arm RED.
OCCASION FOR USE Main or high speed route clear.
INDICATION Proceed.
NAME Clear signal.
 

RULE 900E - Home Signals.

COLOR Upper arm RED, lower arm GREEN.
OCCASION FOR USE Diverging or slow route clear.
INDICATION Proceed at slow speed.
NAME Clear signal (slow speed).
 

RULE 900F - Home Signals.

When there are three arms(home signals) on the same mast, they will govern as follows:
Upper arm main or high speed route.
Middle arm route of next importance.
Lower arm diverging or slow speed route.