Template:General Signal Tags

Key	Value	Property	Description	Default value
Note: Disused and abandoned signals can be mapped by adding disused: or abandoned:. (Example: disused:railway=signal).
railway	signal	signal	a signal
ref	signal designation	signal designation	The name or designation of a signal.
railway:position	distance value, such as 40.6	distance	The rounded distance position of a signal. If using miles, prefix the number with mi:.
railway:position:exact	distance value, such as 40.625	exact distance	The exact (three-place) distance position of a signal. If using miles, prefix the number with mi:.
railway:signal:position	left/right/bridge/overhead/in_track	location	Indicates the location of the signal in references to the track. bridge means the signal is located on a signal gantry overhead the track. left or right determines on which side of the track the signal is located, in reference to the way direction in OpenStreetMap. overhead means a signal is attached to the catenary and in_track is intended for signals in the middle of the track - such as one attached to a buffer stop.
railway:signal:direction	forward/backward/both	direction of displaying	Determines how you have to drive to have a view on the signal. Values are in reference to way direction in OpenStreetMap.
railway:signal:catenary_mast	yes/no	catenary mast	Is the signal attached to a catenary mast?