20092010JMRI GregMcCartney gpmccartney@gmail.com 1 2017-03-16 GPM Original Edition SOU 1981 1 Light Dwarf Signal As described in the 1981 version of the Southern Railway Signal Rules. Appearances for 1 arm color light absolute dwarf signals. Restricted Proceed yellow ../../../resources/icons/smallschematics/aspects/SOU-1981/SOU-1-light-dwarf/rule-309.gif Stop red ../../../resources/icons/smallschematics/aspects/SOU-1981/SOU-1-light-dwarf/rule-310.gif Stop Restricted Proceed Stop Clear Restricted Proceed Approach Diverging Restricted Proceed Advance Approach Restricted Proceed Diverging Route Clear (Medium) Restricted Proceed Diverging Route Clear (Slow) Restricted Proceed Approach Slow Restricted Proceed Diverging Route Approach Slow (Medium) Restricted Proceed Diverging Route Approach Slow (Slow) Restricted Proceed Approach Restricted Proceed Diverging Route Approach (Medium) Restricted Proceed Diverging Route Approach (Slow) Restricted Proceed Restricted Proceed Restricted Proceed Stop Restricted Proceed