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New York State Route 1A (NY 1A) was a north–south state highway mostly located within New York City. It extended for just under from an intersection with NY 27 near the Holland Tunnel in Lower Manhattan to an interchange with U.S. Route 1 (US 1) just north of the New York City line in the Westchester County village of Pelham Manor. In Manhattan and the South Bronx, NY 1A used several surface streets to traverse the boroughs, including a handful of one-way roads. At the Bronx River, it began to follow limited-access highways, specifically the Bruckner Expressway and the Hutchinson River Parkway. The route was among those created when routes were first marked in New York City in 1934. At the time, NY 1A ran from the Holland Tunnel to US 1 and the Pelham Parkway at Bronx Park. Over the next three decades, the route was gradually altered to accommodate changes in New York City's street network, including the construction of new roads and the conversion of parallel two-way streets into one-way couplets. The designation was eliminated in the early 1960s. ==Route description== NY 1A began in the vicinity of the Holland Tunnel in Lower Manhattan at Canal Street, designated as part of NY 27. It initially headed north on a one-way couplet, with northbound NY 1A following Sixth Avenue and southbound traffic using Varick Street one block to the west. The couplet ended at Houston Street, where both directions of the route turned eastward. As the route crossed Manhattan, it intersected the then-southern terminus of NY 22 at Lafayette Street. The highway continued to follow Houston Street until a junction with Second Avenue, the south end of another one-way couplet. While NY 1A southbound followed Second Avenue, the northbound direction proceeded east along Houston Street for another block to reach First Avenue. North of Houston Street, the couplet ran on a linear northeast–southwest alignment across Manhattan's east side, paralleling NY 22 to the west and FDR Drive to the east.〔 The one-way pair continued on First and Second avenues to the Harlem River, where both directions of the route crossed the river on separate one-way bridges. NY 1A northbound used the Willis Avenue Bridge while the southbound direction used the Third Avenue Bridge three blocks to the northwest. Between the Third Avenue Bridge and Second Avenue, NY 1A was routed on 128th Street. Across the river in the Bronx, both bridges ultimately connected to Bruckner Boulevard, with the Third Avenue Bridge making the connection via Lincoln Avenue and 135th Street. Bruckner Boulevard carried only NY 1A southbound from Lincoln Avenue to Willis Avenue, where NY 1A north left the latter street to join the southbound route. Now a unified route once again, NY 1A followed Bruckner Boulevard northeast through the southernmost part of the South Bronx to the Bronx River, where the surface street merged into the Bruckner Expressway.〔 From here, NY 1A was routed along limited-access highways for the remainder of its length. It followed the Bruckner Expressway east to the Bruckner Interchange, where the route turned north onto the Hutchinson River Parkway. NY 1A proceeded along the parkway through the eastern part of the Bronx and Pelham Bay Park to Westchester County, where it ended at an interchange with US 1 just north of the New York City line in the village of Pelham Manor. NY 1A would end on the off-ramp to US 1 (now exit 7 on the Hutchinson River Parkway), while the Hutchinson River Parkway continued northeast through Westchester County toward the Connecticut state line.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「New York State Route 1A」の詳細全文を読む スポンサード リンク
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