gokeefe wrote: ↑Tue Jul 09, 2019 6:43 pm
Clarification appreciated. So one could say that one of the more significant contributions by PC to the NEC as inherited by Amtrak was enabling more tracks to run bi-directional operations.
As I said earlier the only signal upgrade I know of the PC made was upgrading No.3 track between Landover and Bowie from rule 251 to rule 261.
gokeefe wrote: ↑Tue Jul 09, 2019 6:43 pm
I had no idea at all that this wasn't the case at that time. When I imagine the NEC under the PRR and the PC I always have thought of it as this four track fully bi directional railroad between Washington and New York. That obviously wasn't the case then (or now).
As a general rule PRR had rule 261 in effect as follows -
Two tracks - both tracks rule 261.
Three tracks - center track rule 261.
Four tracks - either two tracks 251 north/east and two tracks south/west or center two tracks rule 261 and outer tracks rule 251.
gokeefe wrote: ↑Tue Jul 09, 2019 6:43 pm
Did the NECIP add other areas of Rule 261 territory?
As part of NECIP all tracks on the Philadelphia/Mid Atlantic division from Holmes to CP Avenue (Washington) are rule 261. The New York/Metropolitan division east of Holmes was a different story. East of Holmes tracks No.1 eastbound and No.4 westbound were rule 251. While I'm not totally up to date on signalling on the Metropolitan division (it's only been 23 years since I left Amtrak) I believe there's still a lot of rule 251 territory on the outer tracks east of Holmes.
Remembering my CETC days ...