N&W signal route diagrams

[NW Mailing List]

All,
Due to the recent heightened interest in N&W signals, I took some of
my old signal diagrams from the Arrow many years ago and drew up
something a little easier to understand.

The track on the left of the diagram has signals with 1952 signal
aspect rules, and the track on the right is the color era.  Note:  By
the 1980's, the interlocking numbers and S boards had been removed
from the controlled signals, so they are now gone.

I have three situations drawn up.  One is a train proceeding west on
the main line and not taking the siding.  The dispatcher would have to
request signals 70 left signal route and 66 left signal route.  If no
trains are present ahead of it, the signals would display as such.

The second:  Dispatcher has switch 65 (66 signal) and switch 69 (70
signal) requested reverse.  Then dispatcher requests same as before,
70 Left signal route and 66 Left signal route.  Signals behave
accordingly.

The third:  No signals requested, and no trains present.

I'll do more as time allows, and questions arise.

Ben Blevins
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