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The New York State Thruway is a system of limited-access highways located within the state of New York in the United States. The system, known officially as the Governor Thomas E. Dewey Thruway for former New York Governor Thomas E. Dewey, is operated by the New York State Thruway Authority (NYSTA) and comprises of highway. The tolled mainline of the Thruway extends for from the New York City line at Yonkers to the Pennsylvania state line at Ripley by way of Albany, Syracuse, and Buffalo. According to the International Bridge, Tunnel and Turnpike Association, the Thruway is the fifth busiest toll road in the United States. A tolled highway connecting the major cities of New York was first proposed as early as the 1940s. The first section of the Thruway, between Utica and Rochester, opened on June 24, 1954. The remainder of the mainline and many of its spurs connecting to highways in other states and provinces were built in the 1950s. When the Interstate Highway System was created in 1957, much of the Thruway system was included as portions of Interstate 87 (I-87), I-90, and I-95. Other segments became part of I-190 and I-287 shortly afterward. Today, the system comprises six highways: the New York–Ripley mainline, the Berkshire Connector, the Garden State Parkway Connector, the New England Thruway (I-95), the Niagara Thruway (I-190), and the Cross-Westchester Expressway (I-287). The portion of I-84 in New York was part of the Thruway system from 1991 to 2010. The Thruway utilizes both open (barrier-based) tolling and closed (ticket-based) tolling. Tickets are used on the Thruway mainline between Harriman and the eastern suburbs of Buffalo and from the southern suburbs of Buffalo to the Pennsylvania state line. The Berkshire Connector also utilizes a ticket-based tolling system. The portion of the mainline south of Harriman, the New England Thruway, and the Niagara Thruway have open tolling systems, with all three highways containing at least one toll barrier. The last two components—the Garden State Parkway Connector and the Cross-Westchester Expressway—and the section of the mainline in and around Buffalo are toll-free. ==Route description== The New York State Thruway system is a collection of six individual components across the state of New York that connect the state to four neighboring states (Connecticut, Massachusetts, New Jersey, and Pennsylvania) as well as the Canadian province of Ontario. Together, the highways extend for ,〔 making the Thruway system one of the largest toll highway systems in the United States.〔(【引用サイトリンク】title=New York State Thruway Authority )〕 The longest of the six components is the mainline. Of the 570 miles in the Thruway system, (98.4%) carries at least one Interstate Highway designation.〔 Only three sections of the system are not part of the Interstate Highway System; these are the Garden State Parkway Connector in Rockland County, a portion of the Berkshire Connector between exit 21A on the mainline near Selkirk and exit B1 in Schodack, and a short section of the mainline within exit 24 in Albany that is located between where I-87 departs the roadway and I-90 enters it. They are designated as New York State Route 982L (NY 982L), NY 912M, and NY 915H, respectively, all unsigned reference routes.〔 I-90, which comprises the bulk of the mainline and the Berkshire Connector, runs for along the Thruway: as part of the Berkshire Connector and on the mainline. I-87 comprises the remaining of the mainline, including an concurrency with I-287 north of New York City. I-287 covers another (including the shared with I-87), while I-190 spans and I-95 covers .〔 All highways maintained by the New York State Thruway Authority (NYSTA) lack the reference markers that exist on all New York State Department of Transportation-maintained roads, as would be expected. In their place, NYSTA-controlled roadways use small, square tenth-mile markers with a white background and blue numbering. These markers differ from the white-on-green reference markers used by NYSDOT on state-maintained highways, which are high and wide and display a limited amount of mileage information on their third row. 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 Thruway」の詳細全文を読む スポンサード リンク
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