 At its south end, CP Nice, the Trenton Subdivision becomes the Philadelphia Subdivision.The north end of the Trenton Subdivision Port Reading Junction in Manville where the Conrail Lehigh Line (in the North Jersey Shared Assets Area) heads northeast and the Norfolk Southern Railway Lehigh Line heads west.SEPTA Regional Rail's West Trenton Line parallels the line from Oakford, Pennsylvania to Ewing, New Jersey.