rest of the stations along the line, including a slightly different tiling, fluorescent lighting instead of then-standard incandescent lights, and improved restroom and phone booth facilities. The station also featured a then-modern interlocking technology, known as the "NX" system, wherein train operators would press buttons that automatically adjusted the corresponding switches. In older interlockings throughout the subway system, workers in a separate control tower had to manually adjust the switches using a series of levers within the tower. After several test runs, the station opened to the public in the early morning of November 28, 1948. It became the new terminal of the Fulton Street Line, replacing the former terminal at Broadway–East New York (now Broadway Junction). It later became the replacement for the elevated BMT Fulton Street Line's Chestnut Street and Crescent Street stations, which closed on April 26, 1956 when the connection to the eastern Fulton elevated was opened. In 2002, the Metropolitan Transportation Authority announced that elevators would be installed at the Euclid Avenue station. By the middle of the decade, an elevator to the street and elevators between the mezzanine and each platform had been installed, making the station ADA-accessible. Station layout This station has four tracks and two island platforms. It's the easternmost express station on the IND Fulton Street Line in terms of geographic directions. In terms of railroad directions, Euclid Avenue is the line's southernmost express station. The track walls have the same rectangular eggshell-beige wall tiles as the next three stations west, in contrast to the typical square white tiles seen in the rest of the IND. The tile band, however, is a delicate shade of lilac with a violet border. The I-beam columns are tiled the same way, along with mini-vertical name tablets reading "EUCLID" along with the two-tone border motif. These columns are in pairs at the center of the platforms, though towards each end where the platforms narrow there's only a single row of columns. A crew quarters room is over the railroad south end of both platforms. The station has a crossover in the mezzanine along with an active newsstand and elevators to both platforms. The station has a control tower at the eastern end of the southbound platform, which monitors trains between Broadway Junction and the station, and controls the interlockings east of Euclid Avenue. The tower was the first in the subway system to use the