N&W signal route diagrams

[NW Mailing List]

Jimmy,
I fully appreciate the need for stop and stay at interlockings, and it has
finally sunk through my thick skull that you can't use both "stop and stay"
and "stop and proceed restricting" aspects on the same signal because you
couldn't be sure that a stop and proceed wasn't in fact a stop and stay
with a burned out marker ( I can be a little slow sometimes, thank y'all
for bearing with me).  Now then, Ben points out that you could accomplish
what I was asking about (allowing a following movement to continue without
stopping) by providing a restricting aspect.  This was done on grades to
prevent the need to restart heavy trains, I believe.  Were there instances
of interlockings that could display the restricting aspect?  I believe Ben
indicated that in the majority of instances this was not the case.  My
assumption would be that it was felt that the delay was not significant
enough to warrant the expense of the additional aspect and associated
circuitry.  Any other insights/conjecture?
Thanks again,
Jim Cochran


On Tue, Sep 17, 2013 at 9:21 PM, NW Mailing List
<nw-mailing-list at nwhs.org>wrote:


>  On 9/17/2013 5:41 PM, NW Mailing List wrote:

>

>  I hear you, but I still have the question of why not?  It seems like this

> would add an unnecessary stop/delay in the case where one movement is

> following another in the same direction, on the same route through an

> interlocking.  Any answers, comments, speculation would be greatly

> appreciated.

>

> Well, with that kind of thinking, why have any absolute stop signal then?

> Why don't all traffic lights at intersections have flashing yellow lights?

> It is there because that is where they want you to STOP. It is a* control

> point*! In the days before rock and roll, if this signal was a STOP/and

> STAY, this is where you got off and called the dispatcher on the phone box

> to receive further instructions. Did you ever think that maybe the

> dispatcher has other plans for you and doesn't want you to follow the train

> ahead?

>

> Jimmy Lisle

>

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