The Silverliner IV electric passenger railcars constitute about two-thirds of the Southeastern Pennsylvania Transportation Authority's (SEPTA) regional rail fleet and date back to the mid-1970s.
November 24, 2025
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Describes fleet composition and vehicle age for SEPTA's regional rail.
The Southeastern Pennsylvania Transportation Authority (SEPTA) serves approximately 800,000 daily riders across buses, trolleys, and rail, making it one of the largest mass transit agencies in the United States.
November 24, 2025
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General ridership scale for SEPTA.
SEPTA reported a backlog of infrastructure and rolling stock upgrades exceeding $10 billion, which the agency attributes to inadequate public funding.
November 24, 2025
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Funding and capital investment shortfall reported by SEPTA.
The National Transportation Safety Board (NTSB) concluded that the outdated design of Silverliner IV railcars combined with criticized maintenance and operating practices creates an immediate safety risk because electrical fires can spread to occupied compartments.
November 24, 2025
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NTSB safety assessment regarding electrical fire risk in Silverliner IV cars.