N&W 1949 Signal Definitions

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&W.

Position Light Signals

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.

The single arm absolute signals include a single marker for the stop and stay indication.

See the aspect page.

Signal Mast definitions:

• Single Arm Absolute Position Light Mast Signals
• Single Arm Permissive Light Position Mast Signals
• 1 Arm Dwarf Signals
• 2 Arm Absolute Position Light Mast Signals
• 2 Arm Permissive Position Light Mast Signals