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What is a Lunar Signal?

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Posted by chad thomas on Wednesday, April 5, 2006 10:20 AM
You are never going to see Lunar on the Gateway sub as there are no signals there. It's dark territory, TWC. There was a few miles on the exWP right out of Keddie that was once CTC, But that was taken out of service decades ago. The UP does use lunar aspects on the Feather River Route though. It will usually be a red over lunar at the entrance to a yard indicateing restricted speed.

Actually there are a couple signals on the Gateway sub. The distant and home signals at the automatic interlocking with the Modoc Northern line in Stronghold.
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Posted by Anonymous on Wednesday, April 5, 2006 7:39 AM
QUOTE: Originally posted by CSSHEGEWISCH

I'll agree with tree68, I've never seen Lunar displayed on a single-head aspect, usually below one or two reds to display a restricting indication. The nearest that I've ever seen to Lunar on a single-head is on a color position light signal, where two lunar lamps are displayed in the lower-quadrant aspect.
You mean Dwarf Signals.
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Posted by GN-Rick on Wednesday, April 5, 2006 7:31 AM
On the GN, Lunar White signals were indicative of a spring switch, according
to their edition of the CCOR.
Rick Bolger Great Northern Railway Cascade Division-Lines West
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Posted by CSSHEGEWISCH on Wednesday, April 5, 2006 7:24 AM
I'll agree with tree68, I've never seen Lunar displayed on a single-head aspect, usually below one or two reds to display a restricting indication. The nearest that I've ever seen to Lunar on a single-head is on a color position light signal, where two lunar lamps are displayed in the lower-quadrant aspect.
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Posted by tree68 on Wednesday, April 5, 2006 6:41 AM
It seems like any time I've seen collections of signal indications that the lunar is a separate head on the mast, as opposed to being one of the colors displayed by the main signal head(s). Sort of a "OK, here's your signal, and oh, by the way..."

LarryWhistling
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Posted by JoeKoh on Wednesday, April 5, 2006 6:29 AM
lunars on csx basically mean to stop then proceed after getting clearence from the dispatcher. csx also uses them for when they have trains playing follow the leader on the main.
stay safe
Joe

Deshler Ohio-crossroads of the B&O Matt eats your fries.YUM! Clinton st viaduct undefeated against too tall trucks!!!(voted to be called the "Clinton St. can opener").

 

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Posted by Anonymous on Wednesday, April 5, 2006 5:56 AM
I have seen them on the Main line too.
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Posted by edblysard on Wednesday, April 5, 2006 5:30 AM
The aspect of a Lunar signal is a bluish white light...
The indication is proceed at restricted speed.
GCOR rule 9.1.11

Most of the time you find a Lunar at yard entrance or sideings, it is used to control access to a yard from a main line, and vice versa.

Ed

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Posted by csxengineer98 on Wednesday, April 5, 2006 4:25 AM
signals that have a lunar white light in them for restricting indications... its not a true "white" light... its more like blueisth white...much like the moon in color...thus the name lunar white...
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Posted by David_Telesha on Wednesday, April 5, 2006 1:28 AM
In some Cab Signals, Lunar White is used to indicate stop or in some, any other indication other than clear.
David Telesha New Haven Railroad - www.NHRHTA.org
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What is a Lunar Signal?
Posted by zwspnby9 on Tuesday, April 4, 2006 10:58 PM
Like on the BNSF's Gateway Subdivision in Northern California, what is the basics of the "Lunar Signal", and what is "Lunar Signal?"

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