These changes will likely make the situation worse, leading to increased overcrowding and even less dependable service,” one reader wrote.

Joyous riders boarded the train before dawn Monday for the first MBTA trip to and from the South Coast of Massachusetts in over 65 years.

The MBTA’s South Coast rail begins service Monday, shuttling riders from Boston’s South Station to Taunton, Fall River and New Bedford. Those three communities were the only “major cities” within 50 miles of Boston that were not serviced by the Commuter Rail — until Monday.