Broad Street Subway Signal System Upgrade

Client: Southeastern Pennsylvania Transportation Authority
Location: Philadelphia, Pennsylvania
Value: $52 Million (Construction)

Our firm was selected to provide round-the-clock inspection services for upgrading the entire signal system for Philadelphia's Broad Street Subway, a 10-mile-long transportation facility constructed in 1927. The signal system includes three two-track and four four-track interlockings. In addition to the state-of-the-art signal upgrades, the project involved a new fiber optic distribution system, new automatic vehicle identification and train dispatching equipment at the site and on the existing cars, new electric switches and train stops, and new centrally controlled switch and train stop electric heaters in the yard. Normal schedules were maintained throughout the four-year construction period.

Special Features:

• State-of-the-art signal upgrades
• New fiber optic distribution system
• New automatic vehicle identification and train dispatching equipment
• Three two-track and four four-track interlockings
• Vital and non-vital microprocessors
• New electric switches and train stops
• New centrally controlled switch and train stop electric heaters in yard.

Services Provided:

• Round-the-clock inspection
• Track occupancy schedule coordination
• Daily inspection, progress, and compliance reports.