Baltimore Belt Line pulled by horses along Pratt Street between the B&O's Camden Station and the PW&B's President Street Station. In 1884, the PW&B was purchased by the Pennsylvania Railroad (PRR), a major rival of the B&O, and the PRR cut off the connection. The B&O then proceeded to build its Philadelphia Branch (formally known as the Baltimore and Philadelphia Railroad) to connect to the Philadelphia and Reading Railroad, in turn connecting with the Central Railroad of New Jersey for B&O's New York service. The combination also provided a connection to the Staten Island Railway, which served as the terminal switching company for
Reading Line with Reading. This railroad became part of the Reading Railroad, and carried traffic from the Allentown area to their main line. In 1976, The Reading Railroad was acquired by Conrail, which continued to use the line as a conduit between North Jersey and the rest of the country. When Conrail was split in 1999, Norfolk Southern was assigned the line. On March 14, 2018, Norfolk Southern increased speeds along the Reading Line from to at 33 grade crossings and from to at 3 grade crossings. The speed change was intended to increase the efficiency of rail operations and improve the