The Framingham/Worcester Line of the MBTA Commuter Rail system runs west from Boston, Massachusetts, to Worcester, Massachusetts, through the MetroWest region, serving 18 station stops in Boston, Newton, Wellesley, Natick, Framingham, Ashland, Southborough, Westborough, Grafton, and Worcester. It is the fourth-longest and third-busiest line in the MBTA Commuter Rail system. Service on the line is a mix of local and express trains serving Worcester plus short-turn Framingham locals.