MBTA General Manager Rich Davey reports the first three-car train will pull out of Riverside station 7 a.m. on Monday, with a second to follow at 8:30 a.m. In e-mail, he writes:
We're starting this up on a trial basis as personnel from the Green Line and Power Department closely monitor the performance of the train and the D branch itself. If all goes well, we plan to increase the number of trips made by 3-car trains and expand the program to the B branch. You are probably aware that the Riverside and Boston College lines are the longest branches of the Green Line. All of the train platforms on the D and B branches can accommodate 3-car train sets.
He says this is the first time the Green Line will see three-car trains in five years. What spurred the return, he says, were comments from a number of customers asking for increased capacity during rush hour, at a "Join the GM" session at Riverside last month.
He adds that in the afternoon, there'll be three-car trains at 4 and 5:40 p.m.