harshaw wrote:So, since CP-4 is currently west of the new station, does this mean:
A) only one platform for the station
B) CP-4 is moved east of the station and we continue to have the single track through beacon yard
C) They finish double tracking through beacon yard and we don't have to deal with late trains anymore
The EGE wrote:I believe there will be a new (temporary?) interlocking just east of the station that the (temporary?) track visible in my photo will be connected to.
The design of the Boston Landing station is a center platform serving two tracks on each side. So I have to assume that the construction of the station includes double tracking the area around the station.
Double tracking through Beacon Park is probably not part of this construction because:
1) Final design of West Station and I-90 Allston project will dictate configuration (and exact placement of tracks) there. That final design is not complete.
2) Double tracking the area between the tangent track at the east end of Beacon Park and CP-3 is going to be somewhat complicated, since the Grand Junction lead and freight leads need to get sorted out. Or at least more complicated than the area through Beacon Park where the track arrangement is already pretty workable.
3) If Boston Landing construction is either being executed or just funded by the developer, including somewhat out of scope upgrades through Beacon Park may be difficult to integrate into the construction contracts. I didn't say impossible, just difficult, especially if not negotiated as part of the project. Too bad they couldn't get the developer to pay for the entire double track, but the timing of all this along with issues 1 & 2 above probably would prevent it regardless.
So, here are my hopes and guesses:
1) Certain: CP-4 remains in service at least temporarily, to split traffic onto the 2 tracks from the single shoo-fly track.
2) Almost certain (based on pictures): The temporary (?) interlocking next to the red dump truck, east of Boston Landing station, serves as the switch to the freight lead into Beacon Park during construction. That will be the only switch there - the connection from the shoo-fly to the existing mainline single track doesn't need a switch since the mainline along the station will be OOS (or relocated) during construction.
3) Hope: CP-4 remains in service after construction is complete, and the shoo-fly temporary track remains in place as the permanent freight lead to Beacon Park with connections to the mainline at CP-4. So at the station, there will be three tracks - two mainline on either side of center platform station plus one freight track closest to the Pike. Actually, this may be necessary to maintain wide freight clearance into Beacon Park if Boston Landing station doesn't include drop platforms (I hope it doesn't!).
4) Almost certain: Somewhere near the new temporary interlocking next to the red dump truck, a new permanent interlocking will be installed to split the future post-construction traffic from 2 mainline tracks to the single Beacon Park track. No idea if the new permanent interlocking will also include a switch / lead into the freight yard - may depend on my guess in #3 above.