Stop Arm. Used for Home and Starter signals.

The front face of the arm has a square end and is painted Signal Red with a white vertical stripe.

The Home signal
is normally placed close to the signalbox on plain track. Where there are point connections or crossings before the signalbox the Home signal may be moved back to protect the points or crossing. If the points or crossing are placed some distance before the signalbox the Home signal would be placed near the signalbox and an Outer Home signal would be provided to protect the points or crossing. An Outer Home signal should be placed before the points or crossing by more than the safe braking distance of your fastest train. The Outer Home signal marks the start of the block section and Station Limits.

The Starting signal
is placed ahead of the home signal. The distance from Home to Starting signals will depend on the particular layout as the Starting signal (or advanced starter if used) is the end of the block and the forward end of Station Limits. Where there are sidings ahead of the Home signal the starter (or advanced starter) should be placed far enough ahead of the siding point connection to allow the siding to be shunted without the train passing the starter (or advanced starter) keeping all shunting movements within station limits.

Distant Arm. Used for Distant signals.

The front face of the arm has a triangular piece removed from the end ( > ) and is painted Signal Yellow with a black V stripe matching the shape of the signal arm end ( > ).

The back faces of the signal arms are painted white with a black vertical band on Stop arms (upper arm in photo). A black chevron is used on Distant signals (lower arm in photo).