20092010JMRI GregMcCartney gpmccartney@gmail.com 1 2016-07-28 GM Initial version 2 2019-09-26 GM Removed spaces from folder and icon names. B&O 1980 Single Arm Semaphore High Signal With Lower Red Marker As described in the 1980 version of the Chessie System Operating Rules. Appearances for B&O single arm semaphore signals over a red marker. Clear green red Page 128 ../../../resources/icons/smallschematics/aspects/B&O-1980/Semaphore_1_Arm_with_Marker/B-281-1_Arm_with_marker.gif Approach yellow red Page 133 ../../../resources/icons/smallschematics/aspects/B&O-1980/Semaphore_1_Arm_with_Marker/B-285-1_Arm_with_marker.gif Stop red red Page 138 Normal speed route appearance ../../../resources/icons/smallschematics/aspects/B&O-1980/Semaphore_1_Arm_with_Marker/B-292-1_Arm_with_marker.gif Stop Stop Clear Clear Approach Limited Clear Approach Medium Clear Limited Clear Approach Medium Clear Approach Medium Approach Medium Approach Medium Approach Slow Approach Approach Slow Clear Approach Clear Medium Approach Approach Slow Approach Slow Approach Slow Approach Approach Restricting Approach Stop and Proceed Approach Stop and Proceed Medium Approach Stop Approach