20092010JMRI DickBronson BobJacobsen jake@physics.berkeley.edu 1 2009-12-21 RGJ Initial version 1.1 2009-12-27 DB, RGJ Fix consistency, more aspects 2 2010-01-01 DB More appearances 2.1 2010-01-01 RGJ Add author and revision info 2.2 2011-06-24 DB Added mapping information B&O 1957 Single searchlight high absolute signal As described in the August 1946 version of the AAR publication "American Railway Signaling Principles and Practices", chapter II. Appearances for one-searchlight signal head without other badging Clear green Page 42 C ../../../resources/icons/smallschematics/aspects/AAR-1946/SL-1-high-abs/rule-281.gif Approach yellow Page 47 C ../../../resources/icons/smallschematics/aspects/AAR-1946/SL-1-high-abs/rule-285.gif Restricting red Page 50 C ../../../resources/icons/smallschematics/aspects/AAR-1946/SL-1-high-abs/rule-290.gif Stop red Page 50 C ../../../resources/icons/smallschematics/aspects/AAR-1946/SL-1-high-abs/rule-292.gif Stop Stop Clear Clear Advance Approach Medium Clear Approach Limited Clear Limited Clear Clear Approach Medium Clear Advance Approach Clear Medium Clear Clear Medium Advance Approach Clear Medium Approach Slow Clear Approach Slow Clear Approach Approach Medium Approach Approach Clear Clear Approach Approach Restricting Approach Stop and Proceed Approach Stop Approach