The city shut down the G train to upgrade old signal systems that were nearly a century old, allowing faster changes than overnight or weekend service suspensions.
The G line upgrades included replacing outdated technology with modern communications-based train control, aiming to reduce delays and enhance overall service efficiency.
The project, part of a $368 million effort, entails deep cleaning ten stations and replacing extensive infrastructure to modernize the line by 2027.
MTA anticipates no more 24/7 shutdowns during the G line modernization, yet overnight and weekend interruptions may continue.
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