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I'm an electrical engineer by trade, deeply involved with electrical controls for my entire 45 year career, for which a portion has involved rail signals, controls and safety requirements.

As a consequence, and following on @John C.'s comments these rules apply, to keep things absolutely clear, especially when safety is involved and things must be unambiguous:

  1. I always call them switches.
  2. EXCEPT when that terminology could be confused with electrical switches that might be used to control them, or to control or monitor other things nearby that may involve or interfere with their operation.
  3. In that case, but only that case, they're called turnouts.


This kind of differentiation, in the controls industry while supporting the rail industry, may be why the word "turnout" shows up in the searches that @GP40 mentioned of NORAC (2011), CSX (2014) and NS (2015) rulebooks in his earlier post in this thread and other sources.

Mike

Mellow Hudson Mike, you have helped me, and I sincerely intend to follow your 3 quite sensible rules.

However, reflecting on my experience, I thought I was supposed to call switches "turnouts" and turnouts "switches." Now I will switch to  see how it all turns out.

By the way, I have two resident tortoises---no, not Tortoise Switches, but the real things---heavy, slow, bulldozer powerful, long-lived, vegetable-eatin' wee beasties. Here's the dope on the terms for them, four lines from Ogden Nash's "Tortoises"---or was it "Turtles"?

Come crown my brow with leaves of myrtle,
I know the tortoise is a turtle.
Come carve my name in stone immortal,
I know the turtoise is a tortle.

Nash, Ogden.  Verses from 1929 On. Little Brown & Co; 1st Ed., 1959. ISBN-10 ‏ : ‎ 0316598283 / ISBN-13 ‏ : ‎ 978-031659828

Last edited by Golden Prairie Railroad

A farmer raises hogs, but we eat pork. English is a robust language. At the end of the day the only thing that is important is that we understand each other. Maybe construction crews lay turnouts and railway workers throw switches. I can't imagine laying a switch or throwing a turnout. On my model layout I have a switch tower and I have never heard of a turnout tower. My switches each have a switch stand, and I have never heard of a turnout stand. The man in the switch tower throws a switch that controls a turnout and the man on the ground throws the bar on the switch stand that controls the local turnout. In other words, the English language does not want me to say that a man has switched a switch. But if you want to say that, go ahead, I'll probably understand you either way. What I want to know is the position of the switch. Am I talking about the position of the turnout or the position of the controller? Yes!

These responses are pretty interesting and funny. I would ask my friends in our local group who are train engineers if they ran the train through two switches or if they ran through a crossover and their immediate response was always crossover. Sometimes I'd hear them struggle between what they'd say on the job and their longtime hobby of model trains. We never argued about it and saw it as a topic of amusement. We knew what each other meant, they knew every detail of both sides of the argument, and more importantly we are good friends.

Bob Paris touches on what I have heard/read - model rail magazine writers preferred from the early days of the hobby on to call them 'turnouts', so people reading the articles wouldn't confuse them with the electrical switches (like toggle switches) used to route power to the track and to remote control 'turnouts'.

I think that with all the examples cited the conclusion is pretty clear.  Both terms are used with 'switch' being heard most often.  As a former Northeast Corridor block operator, I can say we never used the word turnout.  Even the levers on the interlocking machine were labeled 'switch' when that lever moved the points.

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