page_title: Manhattan
section_title: Streets and roads
hierarchical_section_title: Manhattan / Infrastructure / Transportation / Streets and roads
caption_attribution_description: A storm moves in from the west, as the northward view from my office window of en:Port Authority Bus Terminal and en:One Worldwide Plaza grows rain-slicked and ominous, yet also beautiful.
context_page_description: Manhattan, often referred to by residents of the New York City area as the City, is the most densely populated of the five boroughs of New York City, and coextensive with the County of New York, one of the original counties of the U.S. state of New York. Manhattan serves as the city's economic and administrative center, cultural identifier, and historical birthplace. The borough consists mostly of Manhattan Island, bounded by the Hudson, East, and Harlem rivers; as well as several small adjacent islands. Manhattan additionally contains Marble Hill, a small neighborhood now on the U.S. mainland, separated from the rest of Manhattan by the Harlem Ship Canal and later connected using landfill to the Bronx. Manhattan Island is divided into three informally bounded components, each aligned with the borough's long axis: Lower, Midtown, and Upper Manhattan.
  Manhattan has been described as the cultural, financial, media, and entertainment capital of the world, and the borough hosts the United Nations Headquarters.
context_section_description: The Commissioners' Plan of 1811 called for twelve numbered avenues running north and south roughly parallel to the shore of the Hudson River, each 100 feet (30 m) wide, with First Avenue on the east side and Twelfth Avenue on the west side. There are several intermittent avenues east of First Avenue, including four additional lettered avenues running from Avenue A eastward to Avenue D in an area now known as Alphabet City in Manhattan's East Village. The numbered streets in Manhattan run east-west, and are generally 60 feet (18 m) wide, with about 200 feet (61 m) between each pair of streets. With each combined street and block adding up to about 260 feet (79 m), there are almost exactly 20 blocks per mile. The typical block in Manhattan is 250 by 600 feet (76 by 183 m).
  According to the original Commissioner's Plan, there were 155 numbered crosstown streets, but later the grid was extended up to the northernmost corner of Manhattan, where the last numbered street is 220th Street. Moreover, the numbering system continues even in The Bronx, north of Manhattan, despite the fact that the grid plan is not as regular in that borough, whose last numbered street is 263rd Street. Fifteen crosstown streets were designated as 100 feet (30 m) wide, including 34th, 42nd, 57th and 125th Streets, which became some of the borough's most significant transportation and shopping venues. Broadway is the most notable of many exceptions to the grid, starting at Bowling Green in Lower Manhattan and continuing north into the Bronx at Manhattan's northern tip. In much of Midtown Manhattan, Broadway runs at a diagonal to the grid, creating major named intersections at Union Square (Park Avenue South/Fourth Avenue and 14th Street), Madison Square (Fifth Avenue and 23rd Street), Herald Square (Sixth Avenue and 34th Street), Times Square (Seventh Avenue and 42nd Street), and Columbus Circle (Eighth Avenue/Central Park West and 59th Street). 
  "Crosstown traffic" refers primarily to vehicular traffic between Manhattan's East Side and West Side. The trip is notoriously frustrating for drivers because of heavy congestion on narrow local streets laid out by the Commissioners' Plan of 1811, absence of express roads other than the Trans-Manhattan Expressway at the far north end of Manhattan Island; and restricted to very limited crosstown automobile travel within Central Park. Proposals in the mid-1900s to build express roads through the city's densest neighborhoods, namely the Mid-Manhattan Expressway and Lower Manhattan Expressway, did not go forward. Unlike the rest of the United States, New York State prohibits right or left turns on red in cities with a population greater than one million, to reduce traffic collisions and increase pedestrian safety. In New York City,  therefore, all turns at red lights are illegal unless a sign permitting such maneuvers is present, significantly shaping traffic patterns in Manhattan.
  Another consequence of the strict grid plan of most of Manhattan, and the grid's skew of approximately 28.9 degrees, is a phenomenon sometimes referred to as Manhattanhenge (by analogy with Stonehenge). On separate occasions in late May and early July, the sunset is aligned with the street grid lines, with the result that the sun is visible at or near the western horizon from street level. A similar phenomenon occurs with the sunrise in January and December.
  The FDR Drive and Harlem River Drive, both designed by controversial New York master planner Robert Moses, comprise a single, long limited-access parkway skirting the east side of Manhattan along the East River and Harlem River south of Dyckman Street. The Henry Hudson Parkway is the corresponding parkway on the West Side north of 57th Street.
caption: Eighth Avenue, looking northward ("Uptown"), in the rain; most streets and avenues in Manhattan's grid plan incorporate a one-way traffic configuration
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