The second phase of a CSX track work program that began this week is affecting operations of the Boston section of Amtrak’s Lake Shore Limited.
Nos. 448 and 449 will not operate between Albany-Rensselaer, New York, and Boston on Monday through Thursday through July 21.
Trains will operate as normal on Fridays, Saturdays and Sundays during the construction period. The trains also will operate as normal on July 4.
Alternative transportation is being provided by bus to the Massachusetts stations of Pittsfield, Springfield, Worcester and Boston South Station. No alternate transportation is being provided to the missed stop of Framingham.
Passengers ticketed to Back Bay will be bused to Boston South Station and take an Amtrak or MBTA commuter train to Back Bay.
In a service advisory, Amtrak said passengers at Boston South Station should go to the Amtrak Information Desk for instructions on boarding the buses.
Passengers at Worcester will board the bus at the main entrance in front of the station. Boarding will not occur at the Bus Terminal.