page_title: Keystone Corridor
hierarchical_section_title: Keystone Corridor
caption_attribution_description: English: Map of Northeast, Keystone, and Empire corridors, federally designated high-speed rail corridors.
context_page_description: The Keystone Corridor is a 349-mile railroad corridor between Philadelphia and Pittsburgh, Pennsylvania, that consists of two rail lines: Amtrak's Philadelphia-to-Harrisburg main line, which also hosts SEPTA's Paoli/Thorndale Line commuter rail service; and the Norfolk Southern Pittsburgh Line. The corridor was originally the Main Line of the Pennsylvania Railroad.
  Since 2006, the line has been one of the high-speed corridors designated by the Federal Railroad Administration. The track from Lancaster to Parkesburg permits trains of up to 110 miles per hour, while the section between Paoli and Philadelphia allows 75 to 90 miles per hour.
  Amtrak runs two intercity rail services along the Keystone Corridor: the Harrisburg-to-New York City Keystone Service and the Pittsburgh-to-New York City Pennsylvanian. SEPTA operates daily Paoli/Thorndale commuter rail service between Philadelphia and Thorndale on the Philadelphia-to-Harrisburg main line. The towns along this stretch form a socio-cultural region called the "Philadelphia Main Line".
  The tracks from Pittsburgh to Harrisburg are owned and maintained by Norfolk Southern, which acquired them from Conrail.
context_section_description: The Keystone Corridor is a 349-mile (562 km) railroad corridor between Philadelphia and Pittsburgh, Pennsylvania, that consists of two rail lines: Amtrak's Philadelphia-to-Harrisburg main line, which also hosts SEPTA's Paoli/Thorndale Line commuter rail service; and the Norfolk Southern Pittsburgh Line. The corridor was originally the Main Line of the Pennsylvania Railroad.
  Since 2006, the line has been one of the high-speed corridors designated by the Federal Railroad Administration (FRA). The track from Lancaster to Parkesburg permits trains of up to 110 miles per hour (180 km/h), while the section between Paoli and Philadelphia allows 75 to 90 miles per hour (121 to 145 km/h).
  Amtrak runs two intercity rail services along the Keystone Corridor: the Harrisburg-to-New York City Keystone Service and the Pittsburgh-to-New York City Pennsylvanian. SEPTA operates daily Paoli/Thorndale commuter rail service between Philadelphia and Thorndale on the Philadelphia-to-Harrisburg main line. The towns along this stretch form a socio-cultural region called the "Philadelphia Main Line".
  The tracks from Pittsburgh to Harrisburg are owned and maintained by Norfolk Southern, which acquired them from Conrail. They include the Horseshoe Curve west of Altoona. The tracks between Harrisburg and Philadelphia are owned and maintained by Amtrak, and are the only part of the Keystone Corridor that is electrified. The tracks join the Northeast Corridor at Zoo Interlocking near the Philadelphia Zoo and 30th Street Station.
caption: Keystone Corridor (blue), as designated by the Federal Railroad Administration
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