CPF

[Clay]

Can someone explain what CPF stands for. I am always seeing it, but I don't know what it means.

[newpylong]

Control Point Freight Mainline - interlockings on the freight main line.

CPN - Control Point Northern Mainline

CPR - Control Point Conn River Mainline

Etc

[johnpbarlow]

The "CPF" control point terminology is also used on the D&H/CP between Mechanicville, NY and NS connection at CP-Kase (NS designation) at Sunbury, PA as a holdover from the days when GRS owned the D&H and had declared the 750 mile route from Mattawamkeag, ME to Sunbury as the Freight Main Line. I think the northernmost CPF control point is CPF-66 a couple of miles south of Northern Maine Jct on Pan Am while the southern most CPF is CPF-716 at Nescopeck, PA on the D&H/CP. Question: will NS continue to use CPF terminology once they assume ownership of D&H South?

[Engineer Spike]

They added the third letter to designate which route it was on. F=Freight Main, N=Northern, W= Western Route, R= Conn River, C= Canadian Main, and O= Colonie Main. CP kept using the Guilford designations, instead of going back to the old two letter cabin names. They also kept the mileages on the Freight Main. That was likely because there were several series of numbers. The route from Mechanicville to Sunbury used pieces of several routes.

[newpylong]

Also the two branches with CTC:

CPL - Brunswick Branch control points

CPM - Mountain Branch control points

[newpylong]

The "CPF" control point terminology is also used on the D&H/CP between Mechanicville, NY and NS connection at CP-Kase (NS designation) at Sunbury, PA as a holdover from the days when GRS owned the D&H and had declared the 750 mile route from Mattawamkeag, ME to Sunbury as the Freight Main Line. I think the northernmost CPF control point is CPF-66 a couple of miles south of Northern Maine Jct on Pan Am while the southern most CPF is CPF-716 at Nescopeck, PA on the D&H/CP. Question: will NS continue to use CPF terminology once they assume ownership of D&H South?

NS probably will keep, having contiguous numbers with the B&M might come in handy in the future lol.

[surfacer]

The "CPF" control point terminology is also used on the D&H/CP between Mechanicville, NY and NS connection at CP-Kase (NS designation) at Sunbury, PA as a holdover from the days when GRS owned the D&H and had declared the 750 mile route from Mattawamkeag, ME to Sunbury as the Freight Main Line. I think the northernmost CPF control point is CPF-66 a couple of miles south of Northern Maine Jct on Pan Am while the southern most CPF is CPF-716 at Nescopeck, PA on the D&H/CP. Question: will NS continue to use CPF terminology once they assume ownership of D&H South?

NS probably will keep, having contiguous numbers with the B&M might come in handy in the future lol.

I like our system on Amtrak they give names to the interlockings.

[newpylong]

Used to be that same on the B&M, MEC, and D&H until the strikes. They gave them numbers so the replacement crews could figure it out quick. Anyone who was tought by the old timers still uses the old interlocking names. I like them too.

[130MM]

Don't forget CPW -- Western Route ML -- all 1.65 miles of it!
And its only CP: CPW-WJ

[Watchman318]

Also the two branches with CTC:
CPL - Brunswick Branch control points

Is that 'L' for Lower Road?

[BostonUrbEx]

Also the two branches with CTC:
CPL - Brunswick Branch control points

Is that 'L' for Lower Road?

Yes. MPL mileages go all the way up to Waterville. The East Augusta Industrial Track still has the old mileages.