Don't confuse the "intermodal" station in Greenfield with the knowledge corridor HSR stimulus funding. Two separate issues with just a little concentricity by the rail line.
The "intermodal" station is a federal program that financially via grants encourages multi use facilities being constructed for cab to bus to car etc etc with the caveat that it be constructed (whether or not rail passenger service currently exists) adjacent to an active rail line. The "intermodal" station in Greenfield was thought up long before the knowledge corridor reputedly for some or all of the following:
1) To get a big grant
2) To have a permanent home for the FRTA offices
3) To have another home for the FRCOG offices
4) To get all the "people" who sit in front of Greenfield city hall waiting for the bus to have another place to congregate.
Unfortunately these intermodal station grants have very little to do with improving transportation per se. It's a kind of economic development tool that is frequently mis used in the name of transportation.
One need only see what happened with the fabulous cape styling Hyannis intermodal center. This facility has no passenger train service, gets very little passenger use for any mode, but does have a variety of homeless, addiction, and violence issues associated with it.
The knowledge corridor project supposedly includes a rail station adjacent to the intermodal center for Greenfield to the tune of 2 million or so.
The big question really is that given the current political climate in Washington, which i would say is not exactly pro high speed rail, will the delays, (ostensibly NS PAS love fest issues) on the Mass portion of the Knowledge Corridor result in those funds that are unspent being pulled/sacrificed as a part of the Obama congress economic crisis compromise.
There is a very real chance that when all the dust settles, Rail America will look like a genius for getting, paying for, and laying their HSR cwr on the ground in Vermont literally minutes before the Tea Party got started in DC in January. It may very well be if things play out the way they look, that the Vermonter will stay on the NECR to Palmer for a long long time. And in the mean time, NECR trains in Vermont at least will be a little faster and a little more secure on their HSR newly built right of way. Very smart monkeys up in them thar hills in Vermont. Very smart.