CTC?

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4 replies

Anonymous

Member since
April 2003
305,205 posts

CTC?

Posted by Anonymous on Sunday, June 11, 2006 7:55 PM

Does anyone know if the Southern Pacific Railway used CTC signals? If not then that type, ABS or APB?

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SSW9389

Member since
July 2001
From: Shelbyville, Kentucky
1,967 posts

Posted by SSW9389 on Monday, June 12, 2006 5:33 AM

Yes to CTC and ABS for train signaling. What is APB?

You need to refine your question to where and when as the Espee was a very large road.

COTTON BELT: Runs like a Blue Streak!

CSSHEGEWISCH

Member since
March 2016
From: Burbank IL (near Clearing)
13,480 posts

Posted by CSSHEGEWISCH on Monday, June 12, 2006 6:58 AM

CTC is not so much a signal system as an operating system using signal indication to convey the dispatcher's orders, distinct from timetable and train order or track warrant control or direct train control. John Armstrong, in his articles in TRAINS which were reprinted as "All About Signals", compared CTC to a very stretched out interlocker.

The daily commute is part of everyday life but I get two rides a day out of it. Paul

tjsmrinfo

Member since
September 2003
From: sherman,tx
492 posts

Posted by tjsmrinfo on Monday, June 12, 2006 7:04 PM

APB is Permissive Block

Tom

jimrice4449

Member since
April 2004
From: North Idaho
1,311 posts

Posted by jimrice4449 on Tuesday, June 13, 2006 12:56 AM

Yes the SP{ used CTC, ABS, and APB in at least one location. The track from Montalvo to Oxnard was APB, operated by the Oxnard operator (one of which I was)

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