More people ride the MFL, or “el,” than any other SEPTA service, and the line saw more than 14.3 million trips last year. The M4 trains being used now were introduced in the late 1990s ...

After 40 years of service with SEPTA, a trailblazing train operator is calling it a career. Jackie Pettyjohn made history as SEPTA's first female train engineer, according to the transit agency.