Staten Island Rail Signaling

The modernization program for the Staten Island Rapid Transit system replaced the 14-mile signal system, from St. George to Tottenvile, with an FRA-compliant 100Hz, track circuit based, Automatic Train Control (ATC) signal system. 40 - R44 subway cars and 4 locomotives were modified with on board cab signaling equipment for ATC bi-directional movement. A new rail control center and back-up control center was constructed as part of this contract. 14 miles of fiber and copper cable, 17 signal/communication instrument houses, new switches, snow melters and hundreds of foundations for various wayside equipment along the 2 track heavy rail system.

Extensive Engineering for largest cutover on east coast was performed, as well as significant training, system integration, testing and commissioning.

The project included the installation of:

• FRA compliant 100HZ steady energy track circuit based signal system


• Wayside signsls and interlockings


• Wayside signals @ interlockings


• Carborne & Locomotive cab signal system


• SCADA system at CB houses and DC substations


• 2 single mode 36 strand fiber optic cables between St. George & Tottenville


• OC-3 SONET based fiber optic transmission system with nodes at passenger stations and substations


• Control Center building, Backup Control Center & systems Systems Integration and Commissioning


• 2 motor-alternator substations