An extension was not present in the 1972 Final Report of the Boston Transportation Planning Review .
The 1974 Transportation Plan revived the project with possible termini of Lynn , Salem , or even Route 128 in Peabody .
An extension was not present in the 1972 Final Report of the Boston Transportation Planning Review , but the 1974 Transportation Plan revived the project with possible termini of Lynn , Salem , or even Route 128 in Peabody .