Since the 181 was truncated to the new station, the 89 was rerouted south of that station along the former 181. The 22X was introduced as a variant of the 22, using what had been the 89 south of the station.
As a result of the 181 being shortened to the new terminal, the 89 route was redirected south of this point along its previous course. A modified version of the 22 line, known as 22X, was subsequently introduced, utilizing the former 89 segment south of the station.