On April 27, 2026, Siemens AG SIEGY announced a significant contract worth nearly $390 million in partnership with L.K. Comstock that will foresee the upgrade of the Fulton-Liberty Subway Lines in New York City. This project will foresee the modernization of 23 stations. It will also foresee the replacement of outdated track systems and implement 5G communication for enhanced train control. This will allowing trains to operate as frequently as every 90 seconds.

Additionally, the initiative will involve the installation of new switch machines and train control rooms. This will require more than 1,200 kilometers of cabling. Also, Siemens will manage a 25-year maintenance agreement following the project’s completion.

How Important is the Contract to Siemens

The announcement of the contract to upgrade the Fulton-Liberty subway lines is a major development for Siemens AG, as it points out the company’s commitment to boost urban infrastructure through advanced technology. The modernization of subway lines not only improves public transportation efficiency but also aligns with global trends towards smart city initiatives. By integrating 5G technology, Siemens is positioning itself at the forefront of innovation in the transportation sector, which is crucial for urban mobility in densely populated areas like New York City. Also, such rail development projects are a big boost in enhancing connectivity in New York, with others such as the Hudson River Rail Tunnel Project adding to the list.

About Siemens

Siemens AG is a multi-industry company engaged in automation, electrification, mobility, and healthcare. With a market capitalization of approximately $226.1 billion, Siemens operates primarily in the industrial products sector, with significant contributions from its operations in the United States, Germany, and China. The company’s diversified portfolio includes a 71% investment in Siemens Healthineers, showcasing its extensive reach across various industries.

Project Factsheet

Total Contract Value: Approximately $390 Million.

Scope of Modernization: 23 stations and 65 track kilometers (approx. 40 track miles).

Primary Goal: Replacing nearly century-old signaling infrastructure with digital technology to improve frequency, safety, and reliability.

Maintenance: Includes a 25-year maintenance agreement with options for two 5-year extensions.

Signaling and Control

System: Siemens Trainguard MT Communications-Based Train Control (CBTC).

Frequency: Technology enables “headways” (time between trains) as short as 90 seconds.

Interlockings: Integration of 9 subway interlockings across the two lines.

Track Infrastructure: Outdated track circuits are being replaced with axle-counter technology for more precise train detection.

Communication and Connectivity

Network: Integration of 5G-based radio communications for real-time, optimized train control.

Commuter Benefits: Installation of a Distributed Antenna System (DAS) to provide 5G cellular service for passengers in underground tunnels.

Cabling: Installation of over 1,200 kilometers of fiber optic and electrical cabling.

Physical Upgrades

Switch Machines: Installation of 94 new switch machines.

Special Work: 24 new “Special Work Portions” (track sections like crossovers or turnouts).

Facilities: Construction of 4 new train control rooms.