Boston Green Line Signal Fixed, Service Restored

Signal problem at Kenmore station temporarily disrupted Green Line service Saturday

2025-12-14, Moovit News Team

Green Line Resumes Service After Signal Issue

Boston's Green Line returned to normal service Saturday after a signal problem at Kenmore station caused temporary delays, transit officials said. The Massachusetts Bay Transportation Authority confirmed the issue was resolved December 14, though officials didn't specify how long disruptions lasted or how many riders were affected.
Kenmore station serves as a major junction where multiple Green Line branches converge, making signal problems at this location particularly disruptive to service. The Green Line carries approximately 143,000 passengers on an average weekday across its 66 stations, according to MBTA data. Signal malfunctions have been a recurring challenge for the Green Line, which uses a mix of older and newer signal technology throughout the system.
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The MBTA announced the service disruption and subsequent resolution through its social media channels, following standard protocols for communicating real-time service issues to riders. Officials didn't provide details about the specific nature of the signal malfunction or what repairs were needed. The agency has been working to improve reliability and safety across its system, including signal infrastructure, following Federal Transit Administration safety oversight in recent years.
The quick resolution allowed service to return to normal by Saturday afternoon, officials said, though the exact timeline for repairs wasn't specified. Transit agencies typically prioritize signal problems at major junction points like Kenmore because they can affect multiple branches simultaneously. The MBTA didn't say whether any trains were taken out of service or rerouted during the disruption.
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Riders who use Kenmore station can expect normal service to continue, though officials didn't say whether additional signal maintenance is planned. The MBTA serves approximately 1 million passengers daily across all modes, down from pre-pandemic levels of about 1.3 million. Moovit provides real-time service updates for Green Line routes and other MBTA services throughout the Boston area.