Signal Aspects and Indications

Santa Fe, 1995

Updated 13-01-2001

Text, Images, HTML: Carsten S. Lundsten.

Rule	Signal Aspect	Name	Indication
9.50		Clear	Proceed.
9.51		Approach Limited	Proceed prepared to pass next signal not exceeding 60 MPH and to advance on diverging route.
9.52		Advance Approach	Proceed prepared to pass next signal not exceeding 50 MPH and to advance on diverging route.
9.53	- unused -
9.54		Approach Medium	Proceed; approach next signal not exceeding 40 MPH and be prepared to enter diverging route at prescribed speed.
9.55		Approach Restricting	Proceed prepared to pass next signal at restricted speed.
9.56		Approach	Proceed prepared to stop at next signal, trains exceeding 40 MPH immediately reduce to that speed.
9.57		Diverging Clear	Proceed on diverging route not exceeding prescribed speed through turnout.
9.58		Diverging Approach	Proceed through diverging route; prescribed speed through turnout; approach next signal preparing to stop, if exceeding 40 MPH immediately reduce to that speed.
9.59	- unused -
9.60		Restricting	Proceed at restricted speed.
9.61		Stop and Proceed	Stop, then proceed at restricted speed.
9.62		Stop	Stop.
9.63		Distant Signal Approach	Approach next signal prepared to stop short of next signal or switch point indicator. The maximum speed in interlocking limits for which Distant Signal Approach is displayed at a distant signal is 20 MPH..