MTA begins $1.9 billion subway signal modernization

The Metropolitan Transportation Authority (MTA) has launched a $1.9 billion project to replace aging signal equipment on the A and C subway lines in Brooklyn and Queens. This initiative, described as the largest signal and track modernization project in the agency's history, aims to replace nearly century-old technology with communications-based train control (CBTC).

The project covers approximately 42 track miles and 23 stations, spanning from High Street in Brooklyn to Ozone Park-Lefferts Boulevard in Queens. The upgraded system will allow for more precise tracking of train locations and speeds, enabling trains to operate closer together to support more frequent and reliable service. The corridor serves roughly 350,000 weekday riders at the specific stations, with the A and C lines carrying approximately 750,000 riders daily.

Funding for the modernization is provided by revenue from New York City’s congestion-pricing program. Due to the complexity of replacing active equipment while maintaining service, the project is expected to reach completion by the second quarter of 2032.