Signal aspects

[NW Modeling List]

Oops!  I forgot the drawing!  Here it is!
  Ben Blevins

NW Modeling List <nw-modeling-list at nwhs.org> wrote:
    Ron, 
  On the Abingdon Branch and Saltville Branch it was designated by the two red over the left to right descending diagonal.  
   
  I have attached a drawing of the various Restricting aspects used by the N&W and NS on former N&W territory.
   
  On the position light signals, 
  A, the one with the marker told the crew to proceed prepared to stop short of train or other obstruction.
   
  B, the one without a marker designated proceed "without stopping" prepared to stop short of a train, etc.
   
  C is out of the 1961 Radford Divison Timetable as a "Stop and proceed at low (restricted) speed."
   
  D is what you'd get at an interlocking.
   
  E is a typical CPL automatic signal, as you would have found between control points.  
   
  F is the modern equivalent of E.  
   
  G is what you'll get now at a distant signal on approach to an interlocking.
   
  H is the modern equivalent to D.
   
  I is a searchlight signal, as found on the VGN side of N&W.
   
  The number plate below the lowest arm on a signal DOES change the meaning of an aspect.  For instance, if G did not have a number plate, it would be a Stop signal instead of a restricting.
   
  From what I've seen, when a crew passes a restricting signal into non-signaled territory there will be a sign saying "End CTC", etc. to let the crew know they won't be governed by signal indication from there on.
   
  Ben Blevins
  

NW Modeling List <nw-modeling-list at nwhs.org> wrote:
  Jimmy, Harry & Ben,

Thanks for explaining Restricting for me.

Does the Restricting aspect shown on Ben's diagram always apply to 
diverging routes?

How would Restricting on a non-diverging route (such as at the end of 
signalled territory) be indicated?

Ron Davis


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