Dutch wrote above:
[[ yes but there is no east leg of wye from springfield line to shoreline jct. and FRA is not going to let you run passenger trains trough a non signalled freight yard. ]]
Just as a point of order...
Back when the old Montrealer was revived in 1989 (via New Haven to New London and then "up the CV" all the way to St. Albans), we used to take the train through an "unsignalled freight yard".
We even ran over that ricketly wooden trestle you see on the CV connection just east of New London station. I remember when I first worked on the Shore Line I used to pass that bridge and wonder who would run a train over it. Little did I know that I would, but that was the regular move.
A story about an irregular move on the CV:
One night, coming south, I was coming through East New London yard around 4 in the a.m., getting there not long after the CV's southbound freight had. Well, came up on their caboose and the rear end of it was only halfway cleared at a switch, with the switch restored to normal position and the caboose still fouling the main.
What to do? I figured the CV crew probably had gone home and didn't want to be the one to get them into trouble. So I had the conductor go over to the Amtrak channel. There was another track to our right, I didn't even know if it was in service, but it ran from the north end of the yard by the roundhouse, and then back into the "yard main" -- enough to get us around the caboose.
So we backed up, got onto the "other track", and crept down it and somehow got back onto the yard main. Then I called the St. Albans dispatcher and cleared up, and crept on out of there. It would have required some explaining if the track had been in such bad shape that we derailed on it with a passenger train.
I guess the CV dispatcher found out about it some other way, story I heard was that the rear end brakeman was brand-new and didn't fully comprehend what "clearing" a track was!
But I wasn't the one to report him.
Moral of the story:
To quote a saying CV Road Foreman P.K. Larner used to say in his classes:
"A man's gotta do, what a man's gotta do!"