Originally Posted by
BearX220
8th Avenue (west) side, at the corner of either 33rd or 31st Streets.
There are no specific tracks set aside for Acela trains but those are the most direct entryways to the Amtrak waiting room. You stand by there until the track for your train is announced on the big display board, typically 8 to 10 minutes before departure time.
If you're riding the Acela, don't look at the main board. Look at the small arrivals boards dotted around the edges of the waiting area and look for your train number. The Track will appear there 5-10 minutes before it appears on the main board and you can be waiting at track level long before any lines start to form.