Some trains continued over the electrified Lansdale/Doylestown Line to the Reading Terminal in Philadelphia.

The Bethlehem Line is owned by SEPTA and is utilized for freight service by the Pennsylvania Northeastern Railroad between Lansdale and Telford and the East Penn Railroad between Telford and Quakertown.

The route between Philadelphia and Bethlehem was constructed in the 19th century by the North Pennsylvania Railroad, a forerunner of the Reading Company.

[citation needed] The Reading continued to operate passenger services between the two cities into the 20th century; at one time Bethlehem was a major interchange with the Lehigh Valley Railroad and the Central Railroad of New Jersey.

Mileage and fare zones are from the July 30, 1978 timetable.