The Metropolitan Transportation Authority spent the summer updating signals along the entire line. Previous signals were more than 90 years old and needed to be updated with the latest communications-based train control system.
Officials said the shutdown helped them complete the project faster than only working on nights and weekends, ensuring minimal disruption to overall service.
The project was split into three phases, starting in Queens and heading south into Brooklyn, with shuttle buses replacing service to accommodate necessary upgrades.
Subway riders expressed that although the shuttle buses were inconvenient, they understood the necessity of the improvements being made to the G train line.
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