Category Description: Railroad signals.
Blue Signal Protection
Model Railroader 2010-12 pg. 110 Scale: Author: Andy Sperandeo
Describes the removable blue signal to indicate that railroad workers are present.
Signaling and Operation on the Canandaigua Southern
Model Railroader 1996-09 pg. 98 Scale: O Author: John Armstrong
The late John Armstrong describes how he built and manages the signals on his O-scale layout. The article includes a trackplan of his layout, several photos, and construction drawings for the signals he uses. He then describes how they use a computer during operating sessions.
Station Order Boards
Model Railroader 1984-12 pg. 102 Scale: (none) Author: Gordon Odegard
The article covers the purpose of train order boards, types of heads, signal colors, and modeling notes. There is a parts diagram of the mast and signal for N-scale.
Train Signals Part 2
The Keystone Modeler 05 December 2003 pg. 0 Scale: Author: Al Buchan and Lin Bongaardt, Jr.
This installment covers classification signals for PRR extra trains.
Train Signals Part 3
The Keystone Modeler 07 February 2004 pg. 34 Scale: Author: Al Buchan and Lin Bongaardt, Jr.
This installment covers the green classification signals that were used to denote the operation of sections of scheduled trains.
Understanding Railroad Signals
Model Railroader 2002-12 pg. 104 Scale: (none) Author: Andy Sperandeo
An introduction to railroad signaling. Interlockings, automatic block system, absolute-permissive block system, centralized track control (CTC), signaling timeline.