The New Castle Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. states of Pennsylvania and Ohio. The line runs from New Castle, Pennsylvania west through Youngstown and Akron to Greenwich, Ohio along a former Baltimore and Ohio Railroad line. Its east end is near Mahoningtown, at the west end of the New Castle Terminal Subdivision. Its west end is at the Willard Terminal Subdivision, just east of the Greenwich Subdivision junction at Greenwich. It junctions with the Newton Falls Subdivision at Newton Falls, Ohio, and the CL&W Subdivision at Sterling, Ohio.

The P&W Subdivision is a railroad line owned and operated by CSX Transportation, the Allegheny Valley Railroad (AVR), and the Buffalo and Pittsburgh Railroad (BPRR) in the U.S. state of Pennsylvania. The line runs from Rankin north through Pittsburgh to West Pittsburg along a former Baltimore and Ohio Railroad line, once the Pittsburgh and Western Railroad.