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<title>N&amp;W 1949 Signaling Definition</title>
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<h2>N&amp;W 1949 Signal Definitions</h2>
This directory contains signaling definitions corresponding to the Norfolk and Western 1949
rule book and applies to position light signals. These definitions cover the N&amp;W.
<h3>Position Light Signals</h3>
The 2 arm version of the NW PLs are illustrated using two faces. In the
field, the actual signal may not have included a complete face depending on the indications
needed for a given location. In general, a two arm signal would be used at an interlocking or
as the advance signal for an interlocking. Signal installations at the end of a siding may
only have a single head.
<p>The single arm absolute signals include a single marker for the stop and stay indication.</p>
<p>See the <a href="aspects.xml">aspect page</a>.</p>
<p>Signal Mast definitions:</p>
<ul>
<li>
<a href="appearance-PL-1-high-abs.xml">Single Arm Absolute Position Light Mast
Signals</a>
</li>
<li>
<a href="appearance-PL-1-high-pbs.xml">Single Arm Permissive Light Position
Mast Signals</a>
</li>
<li>
<a href="appearance-PL-1-low.xml">1 Arm Dwarf
Signals</a>
</li>
<li>
<a href="appearance-PL-2-high.xml">2 Arm Absolute Position Light Mast
Signals</a>
</li>
<li>
<a href="appearance-PL-2-pbs.xml">2 Arm Permissive Position Light Mast
Signals</a>
</li>
</ul>
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