SEPTA's Regional Rail lines were experiencing numerous delays and some cancellations Friday night because of crew shortages, an agency spokesman said.
"We are confident we'll get people home," albeit with "significant delays," said Andrew Busch, the spokesman.
"We have, unfortunately, some manpower issues, some crew shortages," Busch said. "We've had to cancel some trains."
What resulted was a "cascading effect" slowing down service "throughout the system," Busch said.
No lines have been canceled for Friday night.
"The final trains will definitely run," he said.