Southeastern Pennsylvania Transportation Authority Serving Bucks, Chester, Delaware, Montgomery, and Philadelphia Counties

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Four Major PTC Initiatives

  • Separation needed due to PTC incompatibility, increasing freight traffic, commuter growth, and congestion leading to costly delays
    • 57 SEPTA trains and 30 CSX trains traveled this stretch daily
  • Highlights of this project:
    • A third track was added for 4 of 6 miles
    • Innovative yard solution devised to solve the problem that the yard would be on the wrong side - post separation
  • The entire project was completed in less than two years in August 2015
  • Project cost: $38.8M
    • Partially funded thru a TIGER Grant award ($10M)

Regional Rail Line/Segment Implementation Date
SEPTA Territory
Warminster April 18, 2016
Fox Chase May 23, 2016
Lansdale/Doylestown June 13, 2016
Chestnut Hill East July 25, 2016
Manayunk/Norristown August 15, 2016
Chestnut Hill West August 22, 2016
Media/Elwyn September 26, 2016
Airport October 10, 2016
West Trenton October 24, 2016
Cynwyd November 21, 2016
Glenside/Fern Rock December 12, 2016
Fern Rock/30th Street January 9, 2017

FRA authorization was granted to SEPTA in April 2016 to provisionally operate ACSES II in revenue service

Amtrak Territory
Paoli/Thorndale Line May 1, 2017
Trenton May 1, 2017
Wilmington/Newark May 1, 2017

May 1, 2017 marked a major milestone achievement to have Positive Train Control in operation across our Regional Rail service. On this date, SEPTA began PTC operations (ACSES II) on the Paoli/Thorndale, Trenton, and Wilmington/Newark Regional Rail Lines.

The final major focus to completing PTC is establishing interoperability with the freight lines - CSX and Conril/Norfolk Southern - operating along portions of SEPTA territory. Working with our freight partners:

Working with our freight partners:


  • All testing for freight line interoperability with Norfolk Southern, Conrail and CSX successfully completed
    • Norfolk Southern Testing successfully completed on the Airport Line track one day ahead of schedule (11.01.18)
    • Additional testing took place using Manayunk/Norristown Line track to complete Interoperability by the December 2018 deadline
    • SEPTA/CSX PTC Interoperability began on 4 lines - Lansdale/Doylestown, Manayunk/Norristown, Warminster, and West Trenton (01.01.19)
    • PTC Interoperability on the Airport Line began for CSX 02.01.19
    • SEPTA submitted request to the FRA for revenue service demonstration for Norfolk Southern/Conrail locomotives
    • Received approval from FRA for alternative schedule and sequence (01.04.19)
      • Interoperability with CSX, Conrail, and Norfolk Southern will be fully operational in 2019