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Railroad Signaling 101 • Overview of signaling, not a “how to” • Focus on prototypes rather than modeling • Some basic terms • Why railroads developed signaling systems • Chronological approach • Basic overview without all the nuances • Bibliography has sources with more details
By definition, the signaling principles are the underlying principles of a signalling-based safeworking system that are based on the national standards but are independent of the requirements of a specific railway operating company and of the technology used.
Chapter 1 - Introduction. So what are signals? We know what they are when we see one sitting alongside the tracks (commonly referred to as a wayside signal), but how many of us think of a flag as a signal? There are also hand signals, whistles and horns, and crossing gates in addition to the familiar wayside signal.
21 lip 2023 · WHAT SIGNALS DO: TWO TYPES, TWO FUNCTIONS. There are two types of signals, permissive and absolute. You can tell if a signal is permissive or absolute by looking at it. The rules vary by railroad, but permissive signals usually have a number plate on the base of the mast on which they’re mounted, or the letter “I”.
10 maj 2020 · It explains the fundamental principles behind railway signalling systems a generic way that does not focus on specific national solutions.
27 sie 2014 · Inside this framework, the ERTMS/ETCS free handbook gives an overall description of railway signalling with a major focus to ETCS technology, to introduce the main topics all consultants interested or involved in railway signalling projects.
If you are looking for a good all around explanation of model railroad signaling, I recently came across this PDF by Richard Johannes: http://www.hubdiv.org/articles/signalsClinic.pdf
