Approach Restricting, was: "Pole and Paddle" semaphores

[NW Mailing List]

Jimmy,
Here is a video clip that someone was kind enough to send me a couple years
back showing a cpl displaying diverging approach diverging.
Jim Cochran

Moderator:
http://nwhs.org/mailinglist/vn-div-app-div-3.mov
File is 4M long. I had to use vlc under windows to play it!


On Tue, Aug 6, 2013 at 10:24 AM, NW Mailing List
<nw-mailing-list at nwhs.org>wrote:
On 8/6/2013 8:53 AM, NW Mailing List wrote:


> I would speculate that N&W and Southern differed in similar ways, to some

> degree. Southern seems to have had no problem with an approach restricting

> signal, assuming that the train crews would understand the potential and

> act accordingly.  Basically, if somebody hit that caboose just beyond the

> signal, then they weren't running restricted speed in the first place.  It

> sounds like the N&W assumed the crews would (or at least might) be speeding

> and not complying with the signal, so to prevent the resulting accident

> they eliminated the potential by eliminating the signal.  Or maybe I'm just

> reading way too much into the whole thing.

>

The whole idea of an "Approach Restricting" signal seems redundant to me.
If you came up on an approach signal, then you should be prepared to stop
at the next signal, which would mean you should be at or below restricted
speed when you came in sight of the next signal (depend on sight distance).
If that signal is "Restricting", then pass it according to the rules.
I don't know of any "A/R" signals on any line out of Roanoke.
There is also a signal in the rule book that I have never seen. That is the
"Diverging Approach Diverging" aspect, where the bottom lights are
flashing. I hear they are out there somewhere, but, I've never seen one.

Jimmy Lisle
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