On March 1, 1951, the Board of Transportation announced a plan to implement express service along the White Plains Road Line between 241st Street and Third Avenue–149th Street using the middle third track. New signaling, including the installation of block signals, was to be installed on the local tracks, in addition to the installation of signals on the express track at the cost of $3.5 million. In addition, it was announced that a flyover to the Dyre Avenue Line would be built, allowing for through-service, and eliminating the need to transfer at East 180th Street. The final key element to the improvement plan was the elimination of the at-grade junction north of the West Farms Square station, which was a major bottleneck, by closing the spur to 180th Street–Bronx Park. To make up for the loss of service, an escalator and new stairway would be added at the West Farms Square station at 178th Street and Boston Road. The spur to 180th Street—Bronx Park closed on August 4, 1952.