streetsblogmass, 
#MBTA General Manager Phillip Eng announces major increase in rail service for #Boston's Fairmount Line: "We're going to 30-minute (frequency) on this spring schedule, 7 days a week."
https://mass.streetsblog.org/2024/04/25/mbta-regional-rail-schedule-changes-add-more-service-on-worcester-fairmount-lines