The New York Metropolitan Transportation Authority (MTA) has announced that signal modernization work on the G Line will continue during the summer as part of ongoing efforts to upgrade the nearly century-old signaling infrastructure.
Under the $368 million modernization project, the G Line’s 1930s-era fixed-block signaling system will be replaced with a state-of-the-art communications-based train control (CBTC) system. Once completed, the G Line will become the third subway line in New York City’s network to be fully converted to CBTC, which is expected to deliver more reliable and frequent service to the approximately 160,000 daily riders.
The project is being delivered through MTA Construction & Development’s first design–build signal modernization contract, a procurement method aimed at streamlining costs and minimizing service disruptions. Work is expected to continue through the third quarter of 2027.
The signal upgrade has been closely coordinated with Boldyn Networks to support the installation of 5G cellular service across the underground segments of the line. The enhanced connectivity is expected to become available to passengers later this fall.
To complement the modernization efforts, the G Line will also be equipped with new R211 train cars, including the R211T full-open gangway model, designed for improved passenger flow and compatibility with CBTC technology.