Signals for dummies

Wed Jul 16 09:13:53 EDT 2014

Russ,

Here is the east end of Tacoma siding.

http://www.railpictures.net/viewphoto.php?id=416741
<http://www.railpictures.net/viewphoto.php?id=416741&nseq=7> &nseq=7

Here is what I think is the west end.

http://www.railpictures.net/viewphoto.php?id=373403
<http://www.railpictures.net/viewphoto.php?id=373403&nseq=21> &nseq=21

Carl Woods

Richmond, VA

From: NW-Mailing-List [mailto:nw-mailing-list-bounces at nwhs.org] On Behalf Of
NW Mailing List
Sent: Wednesday, July 16, 2014 7:52 AM
To: nw-mailing-list at nwhs.org
Subject: RE: Signals for dummies

Carl;

The orange loadout happens to be there. Spring has a formal name because it
is an interlocked control point. Over on the CV Extension (ex- Interstate)
where is it is track warrant controlled, there are places with names like
Tank, Miller, Top, Josephine, etc., that just have the place name and no
signal, because the dispatcher can tell a crew to work between 'Tank' and
'Miller' and it gives the crew defined limits for the track warrant, since
there are no interlocked control points.

In regards to the signal question, if I understand you correct, you are
wanting to know why in some cases there is a tall and a short mast at one
end of the siding and a pair of tall masts at the other end. I cannot recall
seeing  a pair of tall masts at one end of a siding unless there are
multiple (read three)  targets on each mast. I have most often seen
mid-block signals where both masts are tall. Is there a specific siding
location where there are mixed masts on one end and a two tall masts on the
other end with only one target on each of the two tall masts?

Regards,
Russ

  _____  

To: nw-mailing-list at nwhs.org
Subject: RE: Signals for dummies
Date: Tue, 15 Jul 2014 14:55:10 -0400
From: nw-mailing-list at nwhs.org

Thanks Russ,

Tough choice deciding whether to answer what I asked vs what I meant.
Sorry.  The signal I attached is not the one from Tacoma as you pointed out
- my mistake.  That one is actually from Boody (I think).  The signals at
the Tacoma siding are as you said missing the lower diagonal.  One thing I
find curious it that if I found the right ones this time, they are high/low
at one end, but both the same height at the other end.

So the location of the Orange loader is called Spring.  I thought it was
still Tacoma.  Thanks for that tidbit as well.

Carl Woods

Richmond, VA

From: NW-Mailing-List [mailto:nw-mailing-list-bounces at nwhs.org] On Behalf Of
NW Mailing List
Sent: Tuesday, July 15, 2014 9:38 AM
To: NW Mailing List
Subject: RE: Signals for dummies

Carl

The signal in the attached image is at CV459.7, Spring, Va. The east end of
the siding starts at Tacoma (CV458.3). The taller signal on the left is for
the mainline and the lower set on the right is for the siding to re enter
the main as trains move WB. At Spring, there is a coal loadout which has
changed hand numerous times and is painted orange.  The lower two diagonal
targets are for the notification of the spur into the loadout. Signal
indications could include Clear (Rule 281 - High Green), Adv. Approach (Rule
282A - Diag. Yellow over Diag. Yellow), Diverging Approach Diverging (Rule
283B - Red over Flashing Diagonal Yellow) Diverging Approach (Rule 286 - Red
over Solid Diagonal Yellow). 

If the lower diagonal signals are not present, as is the case for the EB
signal at Tacoma, this all changes.

Regards,

Russ Goodwin

Buford, Ga

Sent from my Galaxy SRIII

-------- Original message --------

From: NW Mailing List 

Date:14/07/2014 13:25 (GMT-05:00) 

To: 'NW Mailing List' 

Subject: Signals for dummies 

A signal like the one in the attached photo is/was positioned at the end of
the siding at Tacoma, VA (visible as you are leaving the siding and going
back onto the single track main).  I'm interested in understanding how it
would be used and what the signal at that location coming from the other
direction would look like and how it is used.

I'd also be interested in any documentation explaining (again for dummies)
the various aspects and the rules associated with them.

Carl Woods

Richmond, VA

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