Currently the schedule has both the Northbound and Southbound Vermonters meet at Springfield and today was no exception as Amtrak P42DC #121 pulls Train 55 out from the adjacent high level platform track #6.
The only other train in the station was a three car Amtrak Springfield Shuttle trainset with P42DC #124 and Metroliner Cab Car #9633. Note the US&S N-2 dwarf signal, likely the only surviving signal from before Amtrak's mid-2000's replacement project.
The Union in Springfield Union Station comes from the meeting of the New York, New Haven and Hartford, Boston and Albany (NY Central) and Boston and Maine. A recent renovation project reopened the Union Station train hall and concourse, however it came at the cost of the period freight house and interlocking tower to make way for a bus depot. Some of the station platform infrastructure and canopies are still under renovation, especially Boston Line tracks 1 and 2 which see the daily passage of the Lake Shore Limited Boston section.
Amtrak P42DC #113 at the front of my Vermonter Train 56 and the new high level Platform C.
Before the re-route, the Vermonter would exit out the east end of the station tracks and enter the Boston Line at CP-97. To reach the Connecticut River Main Line, the Vermonter and Valley Flyer trains still need to perform a short reverse move back through SPRING and SWEENEY interlockings to cross the Boston Line diamonds and enter former Boston and Maine territory.