Here is a later version of rule 17 taken from a 1985 employees rule book of a major southeastern (USA) railroad. Read this and draw your own conclusions as to how it translates into usage on your North American model railway
HEADLIGHTS
- The headlight must be displayed, burning bright, to the front of every train by day and by night except as provided in Rule 17(a). If the engine is detached, the headlight must be displayed in the direction of movement.
17(a). Headlight must be dimmed under the conditions outlined below, except when closely approaching and moving over public crossings at grade.
(1) Passing through yards where other engines are employed.
(2) Approaching train order signals displayed to indicate orders.
(3) Approaching and passing head end and rear end of trains on adjacent tracks.
- Yard engines when moving will display headlight in the direction of movement. The headlight may be extinguished on the end coupled to cars that obscure view of the headlight. The headlight will be dimmed approaching and passing other engines and when other engines or trains are passing on adjacent tracks.
.........end of headlight rules.................
Additionally, there were rules dictating that: ?..When a train in dark territory turns out to meet another, the headlight must be extinguished to indicate that the train is in the clear of the main track. Conversely, the headlight MUST NOT be extinguished if the train is not completely in the clear.
All you need to do is read the rule book. it will tell you everything you need to know about operating your model railway in a prototypical fashion. Pick one from your favorite railroad and your favorite era and get yourself a copy. They are not hard to find and get.
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