Control points, controlled signals and intermediate

[NW Mailing List]

Dick,
I would agree with you that once you learned the signal indications, and
the route, and familiarized yourself with the TT, it might not have been
extremely difficult to know what you needed to do to operate your train
safely according to the signals.  However, if you were given an arbitrary
track plan, could you determine what signals with what aspects should be
placed at which locations to provide for protection and efficiency in all
operations in exactly the way the N&W would have?  I for one, should I ever
be in a position to implement a model layout, would like to be able to at
least approximate a control system using signals in the way the N&W would
have, much in the same way that I would like to purchase/construct good
approximations of their rolling stock, motive power, track side facilities,
etc.  It is one thing to be able to read a map, and quite another to be
able to produce one.
Jim Cochran


On Wed, Aug 21, 2013 at 2:13 PM, NW Mailing List
<nw-mailing-list at nwhs.org>wrote:


> I agree with Jimmy, that some are making signals more complicated than

> they really are.

>

> There are 2 basic types of signal systems. Route signalling, which is

> primarily used in the UK, where railways and railway signalling were

> invented, and speed signalling, primarily used in North America.

>

> Norfolk Southern uses a hybrid system. Our signals can display 1) the

> aspect of the next and sometimes 2nd signal ahead, 2) the route to be taken

> ( the "diverging" aspects) and 3) the type of speed to be observed (maximum

> authorized speed, medium speed, restricted speed).

>

> The engineer can then use the signal indications, along with the timetable

> and bulletin information, and his route knowledge to safely operate his

> train.

>

> Dick Kimball

>

> ________________________________________

> NW-Mailing-List at nwhs.org

> To change your subscription go to

> http://list.nwhs.org/mailman/options/nw-mailing-list

> Browse the NW-Mailing-List archives at

> http://list.nwhs.org/pipermail/nw-mailing-list/

>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://six.pairlist.net/pipermail/nw-mailing-list/attachments/20130821/8a7bb96f/attachment.htm>