former junction with the LIRR Main Line (Whitepot Junction). One stop west, the Woodhaven Boulevard station has provisions to be converted into an express station. East of the Briarwood station, there were additional trackways built for an extension down Van Wyck Boulevard (today the Van Wyck Expressway) to Rockaway Boulevard, near the current site of John F. Kennedy International Airport. None of these proposals were ever funded, and only the Briarwood bellmouths were used for future expansion, while the Rockaway line was connected instead to the IND Fulton Street Line. Program for Action When proposed in the mid-1960s under the MTA's Program for Action, the Archer Avenue and 63rd Street subway lines were two parts of a major planned expansion of Queens Boulevard line service. The 63rd Street tunnel would have facilitated service between the Queens Boulevard line and the Second Avenue Subway, via bellmouths west of Roosevelt Island which turn south towards Midtown and Lower Manhattan. These turnouts may be used for the third and fourth phases of the Second Avenue Subway. The proposed connection to the LIRR Rockaway Beach Branch resurfaced, with proposed branch lines along other LIRR lines to outer Queens areas without rapid transit service. Expected to be completed by the mid-1970s and early 1980s, these plans (the most important of which are outlined below) were derailed by the 1970s fiscal crisis, which delayed the completion of the Archer Avenue and 63rd Street lines. "Super-express" line The Archer Avenue and 63rd Street lines were planned to be connected by a "super-express" bypass of the Queens Boulevard line, The bypass would have used the outer two of the six trackways of the LIRR Main Line (formerly used by the Rockaway Beach Branch), which are currently unused, and would have allowed trains to travel at speeds of up to . It would stretch from the 63rd Street Line east of 21st Street–Queensbridge, with the possibility of access to the 60th and 53rd Street tunnels. At its east end, it would have left the LIRR right-of-way near Whitepot Junction and ran under Yellowstone Boulevard to the Queens Boulevard Line near 71st Avenue station. The 71st Avenue station would have been converted into a bi-level or tri-level station, with the super express tracks using the lower level(s) built south of the current station, before rejoining the main line Queens Boulevard tracks. There were also plans for an intermediate stop at