Serge NOEL
80 lines
2.9 KiB
Plaintext
80 lines
2.9 KiB
Plaintext
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<title>N&W 1981 Signaling Definition</title>
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<h2>Western Maryland 1973-1980 Signal Definitions</h2>
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This directory contains signaling definitions corresponding to color light signals on the
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Western Maryland Railway. These definitions are based on signal rules published in the 1973
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Western Maryland Railway Operating Rules, The 1980 Chessie System Railroads Operating Rules,
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and the Western Maryland Historical Society's magazine The Blue Mountain Express Vol.34
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Numbers 3 and 4.
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<p>The WM used US&S Model R-2 color light signals to replace their semaphore signals.
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Configurations included single head, double head, and single head with a marker above or
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below the main head. In general the light arrangement from top to bottom was RYG-GYR for a
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full two head signal mast,but there were exceptions. Dwarfs signals used YGR from top to
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bottom. Unlike the other Chessie roads, the WM used route signaling instead of speed
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signaling, thereby limiting the number of aspects needed.</p>
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<p>The dwarf signal in this set needs to be set up as two heads in JMRI. The green and yellow
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outputs go to the upper head, and the red to the lower head.</p>
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<p><a href="aspects.xml">Aspect Page</a>.</p>
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<p>Signal Mast definitions:</p>
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<ul>
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<li>
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<a href="appearance-USS-R2-2-arm-absolute.xml">US&S Model R2 Two Arm Absolute
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Signal</a>
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</li>
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<li>
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<a href="appearance-USS-R2-1-arm-high-marker-absolute.xml">US&S Model R2 Two Arm
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Absolute Signal with a High Marker</a>
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</li>
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<li>
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<a href="appearance-USS-R2-1-arm-low-marker-absolute.xml">US&S Model R2 Two Arm
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Absolute Signal with a Low Marker</a>
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</li>
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<li>
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<a href="appearance-USS-R2-1-arm-absolute.xml">US&S Model R2 Single Arm Absolute
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Signal</a>
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</li>
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<li>
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<a href="appearance-USS-R2-1-arm-low-marker-permissive.xml">US&S Model R2 Two Arm
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Permissive Signal with a Low Marker</a>
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</li>
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<li>
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<a href="appearance-USS-R2-1-arm-permissive.xml">US&S Model R2 Single Arm Permissive
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Signal</a>
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</li>
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<li>
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<a href="appearance-WM-Dwarf-absolute.xml">WM Dwarf Signals</a>
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</li>
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</ul>
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