SEPTA unveiled a decade-long plan on Tuesday, Sept. 22, to run trains every 15 minutes on parts of its Regional Rail network. The plan, called Accelerate, also calls for 230 new rail cars and full accessibility at every station.

The changes would directly affect commuters at Radnor, Villanova, Rosemont, Bryn Mawr and Haverford stations on the Paoli/Thorndale Line. Those riders have dealt with fire-related service disruptions and delays tied to the same 1970s-era Silverliner IV cars the plan aims to retire.

SEPTA General Manager Scott A. Sauer framed the announcement as a shift in tone. "I wanted to get away from the doom and gloom message," Sauer told the Philadelphia Inquirer. He said the goal was to show riders and lawmakers what their investment could deliver.

Under the plan, nearly half of SEPTA's roughly 150 Regional Rail stations would get trains every 15 minutes or better, seven days a week. The agency described two service tiers in its vision document: an "S Line" with 15-minute frequency for shorter trips and "SEPTA Regional" with trains every 30 to 60 minutes for longer routes. SEPTA has not specified which stations would fall into which tier.

The new Silverliner VI cars are planned for delivery between 2030 and 2035. They would replace the roughly 225 Silverliner IV cars that make up about two-thirds of the current fleet. The Federal Railroad Administration (FRA) issued an emergency order on Oct. 1, 2025, after fires on those aging cars, which date to the mid-1970s. Service returned to normal schedules in January 2026.

SEPTA says the new cars would feature wider aisles and doors for 35% faster boarding, bicycle storage and modern rider displays. Energy-efficient components would save more than $12 million a year, according to the agency.

The full fleet replacement carries an estimated $2 billion price tag. SEPTA received a $13.3 million federal grant to begin the process, as first reported by WHYY. Once contracts are awarded, the first cars would take five to seven years to arrive.

None of it is funded yet.

The Inquirer reported SEPTA projects a $192 million structural operating deficit in the coming fiscal year. Temporary state aid the agency received in 2025 runs out by July 1, 2027. SEPTA said it has found about $30 million in annual savings and increased income from advertising, parking and real estate.

Sauer told WHYY the agency needs "stability, dedicated funding" to carry out the plan. SEPTA Board Chair Kenneth E. Lawrence Jr. said "the moment to choose acceleration over managed decline is now."

Beyond Regional Rail, Accelerate includes 200 new Market-Frankford Line subway cars arriving starting in 2029, 130 new low-floor trolleys and an expansion of frequent bus routes from eight to 29. SEPTA says the combined changes would put more than two million people within a quarter mile of frequent transit, up from 900,000.

The Paoli/Thorndale Line already showed what higher service levels can do locally. During the PGA Championship at Aronimink Golf Club in Newtown Square in May, SEPTA boosted service on the line and saw a 25% ridership jump. On the tournament's final day, May 17, ridership was 55% above a typical Sunday.

No date for a board vote or public comment period on the Accelerate plan has been announced.