signal brackets

[NW Mailing List]

John, your description is where I think it is. We just described it differently. I said “east end of the single track” while you said “west end of the double track” which is the same place.

A habit I’ve picked up from formerly living in the Metra former Milwaukee Road territory is differentiate between saying “double track” and “two main tracks” (sometimes more than two). At least there, "double track” means two tracks each with a designated current of traffic (rule 251). “Two main tracks” means either can be used either direction (rule 261, CTC, TC, or whatever name you want to use since they varied). Based on my 1981 employee timetable, to use those terms, N&W was two main tracks east of Chillicothe, then 1.5 miles of rule 261 single track, but then double track west of there.

And I agree as I love signaling discussions. Once Eric posted that excerpt from the track map, it was clear (pun intended) as to why no Clear as the only thing a train can do at the next signal at MP 657 is diverge to the westbound track (35mph speed restriction in 1981) or continue straight onto the eastbound track which was not signaled for westbound moves and therefore could only be done with a Restricting signal.

-- 
Larry Stone
lstone19 at stonejongleux.com





> On Mar 27, 2024, at 8:08 PM, NW Mailing List <nw-mailing-list at nwhs.org> wrote:
> 
> From my days working on the Scioto Division 40+ years ago, my timetable
>> from then shows a short section of single track through Chillicothe. And if
>> I’ve figured out where this picture is, it it looking west at the east end
>> of the single track section. But the lack of Clear is not for the end of
>> the two tracks but rather for the resumption of double track 1.5 miles
>> ahead.
> 
> Larry, As described above, I don't think you've got the signal's location correct. I've never seen a double-mast signal on a single track section (if I understand your wording correctly). The 1984 track chart seems to show it as the westbound signal at the west end of the double-track looking west toward the former B&O Xing and the US Hwy 50 overhead bridge. Perhaps someone from the Columbus District can confirm or correct.
> 
> It's a bit confusing, but I now see why there cannot be a 'Clear' indication for either Track 1 or 2. The fact that at the next interlocking, one mile further west, Train Control ends factors into this as well. Great discussion re signaling in general!
> 
> John Garner, Down in the hills of Giles Co.
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