White is to show that the train is an extra, that is, it is a train that is not
listed in the timetable.
Green is to indicate that the train is a regularly scheduled one that is running
in
more than one part, or sections. All sections operate on the time published in
the
timetable for that train. That is, every section is due at the same place at the
same time. Of course, that can't happen, so any train meeting a superior train
displaying green class lights must wait until all sections of that train have
passed.
On trains running in sections, all but the last section will display green
lights.
RED, if present, is not a classification light, but rather a marker light to
indicate
that the locomotive is the end of the train. Red marker lights may be seen on
light
engine movements without a caboose or, sometimes, on helper or pusher engines.
Recently, several manufacturers offered "Working" class lights that illuminated
green
when the locomotive was going forward and changed to red when the locomotive was
reversed. This was most emphatically NOT prototype practice anywhere in North
America and is purely "Toy Train".
Incedentally, the rules specify that in addition to lights, flags of the proper
color
be displayed as well. Two of each are required, but the presence of one shall be
the
same meaning as two.
Let's not forget modern commuter locomotives. GO Transit (Gov't of Ontraio)
runs F40PH-2's in push-pull service. When the Cab-car is leading, the unit
doing the pushing from behind displays 'RED' class lights as well.
DING DING
Except that in this condition it is displaying end of train marker
lights and not classification lights. Even though it is using the same
lights, the usage is different.
In the real world there is a difference.
It is a common error to confuse the terms "class light" and "marker light"
Almost everyone is guilty of doing it at one time or another.
Class lights have only three possible conditions:
OFF
GREEN
WHITE
When red is displayed as in the Canadian example cited above, they are marker
lights
and indicate the rear end of the train. It was an ingenious bit of engineering,
but
confuses many railfans.
So, 'RED' or End Of Train (or even FRED - Flashing Rear End Device) isn't
considered a 'class'?
_______________________________________________________
Drew Bunn
Ainsley Specialized Transport
Toronto, Ontario
Canada
bunn snipped-for-privacy@hotmail.com
Class lights have only three possible conditions:
OFF (Scheduled Train)
GREEN (Section following)
(all sections of a train BUT the LAST section will display
green class lamps)
WHITE (Extra Train)
Marker lights:
RED (End of train)
GREEN (End of train in the clear on siding)
(they do some things with one red and one green marker for
in the
clear in multiple track areas)
-Hudson
"Hudson Leighton"
Just to make it perfectly clear, the last section's classification lights
are "OFF" because this isn't a section, it's the regular train. At least as
far as the timetable is concerned.
Many, some, model railroaders think that sections carry white
classification lights.
--
Cheers
Roger T.
Home of the Great Eastern Railway
considered a 'class'?<
No.
Class lights determine sections, or extras. In my time era a engine
with no class lights was the regular scheduled train. If it had a white
light it was running extra (usually freights). If it had a green light it
meant additional sections were following (usually passenger trains with
additional sections following).
classification lights.<
The problem with models is that's it's hard to change the lights.
So I usually model my freight engines with white lights (meaning most
freights are run extra) and mix up the passenger engines with none and
green.
It's one of those areas where compromises must be made. In our operating group
we do
not have fully functional class lights on the locomotives. We do, however, run
extras
and sections when needed. Instead of lights we use flags. Of course, since a
model
railway is not usually operated in the dark (don't laugh, one of our group does
operate in the dark) flags do the job nicely. There are whistle signals that are
mandated for a train running in sections to use to communicate that fact to all
trains it meets; one "long" and two "shorts". The train being notified is
required to
answer in kind. I know that, but I have never told any of the guys who use
"sound"
about it. When you have a train running in three sections that meets two extras
and
three regularly scheduled trains it would be Bedlam on a model railway.
Of course, if a given model railroader is really clueless about operating
practices, rules, etc., then he's REALLY "operating in the dark." :-)
Dieter Zakas
Uhmmmmm...yeah, as is most often the case IME. Of course, I meant literally in
the
dark, as in with the lights out. One of our group has twenty-four hour lighting
in
his railroad room and when its nighttime, it's really nighttime. The lights are
out
and there's only a very faint blue-white "sort-of" light from the ceiling. It's
only
enough to allow you to move around without being totally blind. Here are lights
in
the yards as per the prototype, but you can't see enough to work without a
flashlight. The flashlight has to be approved by the layout owner, which means
that
it is very dim; just barely enough light to read car numbers and see turnouts.
Yeah, OK. We are on the same wavelength
What is amusing is to observe someone who is in the dark operating in the
dark.
Amusing to ME anyway.
..................F>
de Sade, Ga.
PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.