2009 2010 2020 2024 2026 JMRI John Purcell Dick Bronson Bob Jacobsen rgj1927@gmail.com 1.0 2024-11-14 JDP Initial release for use in new "basic-enhanced" signal system 2.0 2026-01-30 BJ added alternate color-distinguished icon set basic-enhanced Double searchlight low signal (similar to basic signals described in various magazine articles) A simple two-headed signal mast for use at simple/single turnouts. This signal mast based on similar mast used in the "basic" signal system, but with addition of an Advanced Approach appearance. Clear green red ../../../resources/icons/smallschematics/aspects/AAR-1946/SL-2-low/rule-287.gif ../../../resources/icons/smallschematics/aspects/basic-enhanced/SL-2-low/SL-2-low-G-R.gif Approach yellow red ../../../resources/icons/smallschematics/aspects/AAR-1946/SL-2-low/rule-288.gif ../../../resources/icons/smallschematics/aspects/basic-enhanced/SL-2-low/SL-2-low-Y-R.gif Advanced Approach flashyellow red ../../../resources/icons/smallschematics/aspects/AAR-1946/SL-2-low/rule-282.gif ../../../resources/icons/smallschematics/aspects/basic-enhanced/SL-2-low/SL-2-low-FY-R-animated.gif ../../../resources/icons/smallschematics/aspects/basic-enhanced/SL-2-low/SL-2-low-FY-R-static.gif Stop red red ../../../resources/icons/smallschematics/aspects/AAR-1946/SL-2-low/rule-292.gif ../../../resources/icons/smallschematics/aspects/basic-enhanced/SL-2-low/SL-2-low-R-R.gif Diverging Clear red green ../../../resources/icons/smallschematics/aspects/AAR-1946/SL-2-low/rule-283.gif ../../../resources/icons/smallschematics/aspects/basic-enhanced/SL-2-low/SL-2-low-R-G.gif Diverging Approach red yellow ../../../resources/icons/smallschematics/aspects/AAR-1946/SL-2-low/rule-286.gif ../../../resources/icons/smallschematics/aspects/basic-enhanced/SL-2-low/SL-2-low-R-Y.gif Diverging Advanced Approach red flashyellow ../../../resources/icons/smallschematics/aspects/basic-enhanced/SL-2-low/SL-2-low-R-FY-animated.gif ../../../resources/icons/smallschematics/aspects/basic-enhanced/SL-2-low/SL-2-low-R-FY-static.gif Unlit dark dark ../../../resources/icons/smallschematics/searchlights/two-low-dark.gif ../../../resources/icons/smallschematics/aspects/basic-enhanced/SL-2-low/SL-2-low-dark.gif Stop Stop ../../../resources/icons/smallschematics/searchlights/two-low-held.gif ../../../resources/icons/smallschematics/aspects/basic-enhanced/SL-2-low/SL-2-low-held.gif Unlit Stop Approach Diverging Approach Approach Advanced Approach Diverging Advanced Approach Advanced Approach Clear Diverging Clear Diverging Approach Advanced Approach Diverging Advanced Approach Secondary Diverging Approach Advanced Approach Diverging Advanced Approach Diverging Advanced Approach Clear Diverging Clear Secondary Diverging Advanced Approach Clear Diverging Clear Clear Clear Diverging Clear Diverging Clear Clear Diverging Clear Secondary Diverging Clear Clear Diverging Clear