[PRR-talk] Marker/Classification Lights

[Sid Johnson]

Al is absolutely correct.  Steve Hoxie, just for clarification, the class of
a schedule is only defined by the timetable on the schedules pages, (as in
1st Class, 2nd Class, 3rd Class, etc) not the classification lights.  Those
lights indicate if a train is to be operated as a section of a scheduled
train or as an extra.  The PRR certainly did the right thing in 1939 when
its signal system and MBS negated the need for Timetable/Train Order
operation.

I worked under both systems and the TT/TO system was an anachronism or
unbelievably complex!  In 1977 we took a lesson from the PRR and adopted MBS
for our "dark territory".  Of course by then we had total radio coverage and
didn't need block operators.

Sid Johnson

  _____  

From: prr-talk-bounces at dsop.com [mailto:prr-talk-bounces at dsop.com] On Behalf
Of abbuchan
Sent: Tuesday, January 01, 2008 6:39 PM
To: 'Richard Roth'; arrjerry at aol.com; prr-talk at dsop.com
Subject: Re: [PRR-talk] Marker/Classification Lights

 

Re: The red, green, and white classification light colors, therefore would
be:White - for an extra; Green - section of train following; Red - Loco is
rear of train and running in reverse

 

I hope some year once and for all we can all stop screwing up the
nomenclature. 

 

Class light lamp colors were only green and white. Separate lamps known as
marker lights were initially red and green, subsequently red and yellow and
finally just red.

 

Al

 

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