SEPTA's Broad Street Subway signal system modernization project Philadelphia, Pennsylvania

The Southeastern Pennsylvania Transportation Authority (SEPTA) is designing the modernization of the signal system on the Broad Street Subway, which runs north-south through the center of the City of Philadelphia. This project will replace the existing wayside and trip stop signal system with a continuous automatic train control (ATC) cab signal system, without wayside signals except at interlockings. The existing car fleet will be retrofitted, and a central control system will also be provided.<
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