Norfolk Southern rail line
The Pittsburgh Line is the Norfolk Southern Railway's primary east–west artery in its Pittsburgh Division and Harrisburg Division across the U.S. state of Pennsylvania and is part of the Keystone Corridor, Amtrak-Norfolk Southern's combined rail corridor.
The Pittsburgh Line spans 248 miles (399 km) between its namesake city of Pittsburgh (PT 353.3) and the state capital in Harrisburg (PT 105.1), crossing the Allegheny Mountains through the Gallitzin Tunnels west of Altoona and the famous Horseshoe Curve in the process. Its east end connects with the railroad's Harrisburg Line HP 112.9) to Reading and Philadelphia, and the west end connects to the Fort Wayne Line to Conway, Pennsylvania, and points west in Ohio and Indiana.[3]
The Pittsburgh Line is arguably Norfolk Southern's busiest freight corridor, where 50 to 70 trains traverse the line daily and is the leading connector of intermodal traffic between New York City and Chicago.[citation needed]