2009 2010 JMRI John Lang 1 2013-04-01 JDL Initial version 2 2013-07-10 JDL aspect mapping revisions 2.1 2013-12-30 JDL fixed aspect name reference in appearence files. tweaked aspect mappings 2.2 2015-06-12 JDL added aspect mapping to Held Aspect NYC-1956 Double searchlight dwarf signal As described in the New York Central System publication "Rules of the Operating Department, Effective October 28, 1956." Appearances for a two-searchlight dwarf signal head Clear green green Rule 281 ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-2-low/Rule_281.gif Advance Approach Medium green yellow Rule 281A ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-2-low/Rule_281A.gif Approach Limited yellow flashgreen Rule 281B ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-2-low/Rule_281B.gif Limited Clear flashgreen red Rule 281C ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-2-low/Rule_281C.gif Limited-Approach flashyellow red Rule 281D ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-2-low/Rule_281D.gif Approach Medium yellow green Rule 282 ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-2-low/Rule_282.gif Advance Approach yellow yellow Rule 282A ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-2-low/Rule_282A.gif Slow-Clear green red Rule 287 ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-2-low/Rule_287.gif Slow-Approach yellow red Rule 288 ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-2-low/Rule_288.gif Restricting red yellow Rule 290 ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-2-low/Rule_290.gif Stop red red Rule 292 ../../../resources/icons/smallschematics/aspects/NYC-1956/SL-2-low/Rule_292.gif Stop Stop Clear Clear Limited Clear Slow-Clear Advance Approach Medium Clear Limited Clear Slow-Clear Approach Limited Clear Limited Clear Slow-Clear Limited Clear Approach Limited Limited-Approach Approach Limited Approach Medium Approach Limited Advance Approach Approach Limited Medium Clear Approach Medium Medium-Advance Approach Approach Medium Medium-Approach Slow Approach Medium Approach Slow Approach Medium Approach Approach Medium Medium-Approach Approach Medium Slow-Clear Restricting Slow-Approach Restricting Restricting Slow-Approach Stop and Proceed Slow-Approach Restricting Stop Slow-Approach Held Slow-Approach