Re: D-plate on a signal
Author: Ernest H. Robl
Date: 03-26-2020 - 20:32

You would have a D-plate signal just before the transition from non-signaled to signaled territory. This could be approaching an interlocking (crossing) on an otherwise non-signaled line or where you are going from track warrant to CTC territory.

For example, you would have the D-plate signal while still within track warrant territory. It would not provide any information about the occupancy of the track segment ahead -- not really a "block" in the CTC sense -- and you would continue to operate on track warrant authority as you pass the signal. However, the signal would provide information about the first CTC signal a mile or so ahead.

That lets the crew know whether to expect to stop at the first CTC signal or to be able to pass it.

Hope that makes sense.

-- Ernest



Subject Written By Date/Time (PST)
  Mack Western assembly plant, Hayward, CA transpo. fan 03-25-2020 - 14:15
  Re: Mack Western assembly plant, Hayward, CA OPRRMS 03-25-2020 - 14:40
  Re: Mack Western assembly plant, Hayward, CA transpo. fan 03-25-2020 - 14:46
  Re: Mack Western assembly plant, Hayward, CA George Andrews 03-25-2020 - 16:13
  Re: Mack Western assembly plant, Hayward, CA Trucker 03-25-2020 - 16:28
  Re: Mack Western assembly plant, Hayward, CA George Andrews 03-25-2020 - 16:29
  Re: Mack Western assembly plant, Hayward, CA Nudge 03-25-2020 - 17:04
  D-plate on a signal xx 03-25-2020 - 18:03
  Re: D-plate on a signal WEED WATCHER 03-25-2020 - 19:17
  Re: D-plate on a signal Dr Zarkoff 03-25-2020 - 19:35
  Re: D-plate on a signal xx 03-25-2020 - 21:26
  Re: D-plate on a signal Dr Zarkoff 03-25-2020 - 22:23
  Re: D-plate on a signal Ernest H. Robl 03-26-2020 - 20:32
  Re: D-plate on a signal Dr Zarkoff 03-27-2020 - 11:27
  Re: D-plate on a signal Keith Ode 03-27-2020 - 00:17
  Re: D-plate on a signal Dr Zarkoff 03-27-2020 - 10:52
  Re: D-plate on a signal Keith Ode 03-27-2020 - 13:57
  Re: D-plate on a signal Dr Zarkoff 03-27-2020 - 15:59
  Re: D-plate on a signal Leisure Suit Larry 03-26-2020 - 06:49
  Re: D-plate on a signal Nudge 03-26-2020 - 21:20
  Re: D-plate on a signal Nudge 03-26-2020 - 21:14
  Re: Mack Western assembly plant, Hayward, CA Railbaron 03-26-2020 - 15:31
  Re: Mack Western assembly plant, Hayward, CA Dr Zarkoff 03-26-2020 - 16:58
  Re: Mack Western assembly plant, Hayward, CA Railbaron 03-26-2020 - 19:37
  Re: Mack Western assembly plant, Hayward, CA Dr Zarkoff 03-27-2020 - 10:54


Go to: Message ListSearch
Subject: 
Your Name: 
Spam prevention:
Please enter the code that you see below in the input field.
 ********   **        ********  **        ********  
 **     **  **        **        **        **     ** 
 **     **  **        **        **        **     ** 
 ********   **        ******    **        ********  
 **     **  **        **        **        **        
 **     **  **        **        **        **        
 ********   ********  **        ********  **        
This message board is maintained by:
Altamont Press Publishing Company