Here's a link to the various train schedules that go to North Station or South Station.
www.mbta.com
Depending on where in Cambridge, one or the other station would be more convenient. If he works in the Lechmere area, near the Cambridgeside Galleria, then North Station would work - take the Green Line. If he works more in the Central/Kendall/Harvard Square area, then South Station is more convenient - it's right on the Red Line.
You'll want to check the Providence/Stoughton, Needham, Frakingham/Worcester, and Franklin lines - those serve most of the communities mentioned here.
You can then calculate the commute - add 15 minutes or so for the trip from a house to the train station (including time to park), then another 20-25 minutes to get to the subway, wait for it, ride it and walk to work.
www.mbta.com
Depending on where in Cambridge, one or the other station would be more convenient. If he works in the Lechmere area, near the Cambridgeside Galleria, then North Station would work - take the Green Line. If he works more in the Central/Kendall/Harvard Square area, then South Station is more convenient - it's right on the Red Line.
You'll want to check the Providence/Stoughton, Needham, Frakingham/Worcester, and Franklin lines - those serve most of the communities mentioned here.
You can then calculate the commute - add 15 minutes or so for the trip from a house to the train station (including time to park), then another 20-25 minutes to get to the subway, wait for it, ride it and walk to work.