Caretta Branch - Abandoned Signal

[NW Mailing List]

There would be no need for an advance approach signal being as there is 
not a short block between the junction signal and the next signal. You 
would only get a clear, approach, or stop at the home signal. So if the 
home was at clear or approach you would get a clear at this signal in 
question. If the home signal was stop, you would get a restricting or 
stop and proceed. This was probably due to a short block between this 
signal and the home signal, it is also possibly arranged in this way due 
to the crossing with in sight of this signal that would indeed be 
blocked if a train was stopped at the home signal. This way a train 
would know to hold off the crossing.

Nathan Simmons
trainman51 at gmail.com
http://www.t-51.org
KI4MSK

On 3/3/2014 14:04, NW Mailing List wrote:

> Jeff,

> It is definately not a home signal for the junction with a milepost

> marker on it.

>

> As for the aspects, my guess (experts please correct me if I'm wrong)

> is that if a train leaving the branch is lined at the juction, the

> signals will show Clear (since the signal at the junction will show

> either clear or approach. Timetable speed for the branch should keep

> the train from moving too fast if the junction signal is approach, so

> no need to display an advance approach signal even with the short block

> distance between the junction and the approach signal.

>

> If the train leaving the branch does not have a signal at the junction,

> the signal will show horizonal red. Since the signal has a milepost

> marker on it, it is a permissive signal, so the actual signal indication

> is either "Restricting" or "Stop and proceed", allowing the train to

> approach the junction at restricted speed. Thus, no need for an approach

> indication.

>

>

> Joe Shaw

> Christiansburg, VA

> http://www.krunk.org/

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