This would have provided an additional interchange known as exit 70A.
The Central line runs directly below this station and it has long been proposed to provide an interchange.
However, during the early 1960s the route was modified so as to provide an interchange with Highway 400.
This is because they were constructed by two independent railway companies who did not think it necessary to provide an interchange.
The station will provide an interchange with Line 12 when the line enters operation in 2012.
This would therefore provide an interchange between the two London Underground lines.
Each island platform provides a cross-platform interchange between local and express services.
Two underground ramps provide an interchange with the A-720.
But recently city, state and business leaders reached an agreement with residents to provide an interchange at the south end of Penn's Landing by 1991.
The station provides interchange with urban and suburban buses.