High Five Interchange
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High Five Interchange
The High Five Interchange is one of the first five-level stack interchanges built in Dallas, Texas. Located at the junction of the Lyndon B. Johnson Freeway ( Interstate 635, I-635) and the Central Expressway ( US Highway 75, US 75), it replaces an antiquated combination interchange constructed in the 1960s. The $261 million project was started in 2002 and completed in December 2005. It was designed by the HNTB Corporation and built by Zachry Construction Corporation. The interchange is considered by ''Popular Mechanics'' to be one of "The World's 18 Strangest Roadways" because of its height (as high as a 12-story building), its 43 permanent bridges, and other unusual design and construction features. In 2006, the American Public Works Association named the High Five Interchange as "Public Works Projects of the Year". Description The High Five Interchange, north of downtown in Dallas, Texas, is a massive five-level freeway interchange. It is the junction of ...
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High Five Interchange
The High Five Interchange is one of the first five-level stack interchanges built in Dallas, Texas. Located at the junction of the Lyndon B. Johnson Freeway ( Interstate 635, I-635) and the Central Expressway ( US Highway 75, US 75), it replaces an antiquated combination interchange constructed in the 1960s. The $261 million project was started in 2002 and completed in December 2005. It was designed by the HNTB Corporation and built by Zachry Construction Corporation. The interchange is considered by ''Popular Mechanics'' to be one of "The World's 18 Strangest Roadways" because of its height (as high as a 12-story building), its 43 permanent bridges, and other unusual design and construction features. In 2006, the American Public Works Association named the High Five Interchange as "Public Works Projects of the Year". Description The High Five Interchange, north of downtown in Dallas, Texas, is a massive five-level freeway interchange. It is the junction of ...
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Freeway
A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway and expressway. Other similar terms include '' throughway'' and '' parkway''. Some of these may be limited-access highways, although this term can also refer to a class of highways with somewhat less isolation from other traffic. In countries following the Vienna convention, the motorway qualification implies that walking and parking are forbidden. A fully controlled-access highway provides an unhindered flow of traffic, with no traffic signals, intersections or property access. They are free of any at-grade crossings with other roads, railways, or pedestrian paths, which are instead carried by overpasses and underpasses. Entrances and exits to the highway are provided at interchanges by slip roads (ramps), which allow for speed changes between the highway and arter ...
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Texas Department Of Transportation
The Texas Department of Transportation (TxDOT ) is a government agency in the American state of Texas. Though the public face of the agency is generally associated with the construction and maintenance of the state's immense state highway system, the agency is also responsible for overseeing aviation, rail, and public transportation systems in the state. At one time, TxDOT also administered vehicle registration; but this function transferred to the Texas Department of Motor Vehicles, a state agency which began operations in November 2009. The agency has been headquartered in the Dewitt C. Greer Building at 125 East 11th Street in Downtown Austin, Texas, since 1933. History The Texas Legislature created the Texas Highway Department in 1916 to administer federal highway construction and maintenance. In 1975, its responsibilities increased when the agency merged with the Texas Mass Transportation Commission, resulting in the formation of the State Department of Highways and Pub ...
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High-occupancy Vehicle Lane
A high-occupancy vehicle lane (also known as an HOV lane, carpool lane, diamond lane, 2+ lane, and transit lane or T2 or T3 lanes) is a restricted traffic lane reserved for the exclusive use of vehicles with a driver and one or more passengers, including carpools, vanpools, and transit buses. These restrictions may be only imposed during peak travel times or may apply at all times. According to the criteria used there are different types of lanes: temporary or permanent with concrete barriers; two-directional or reversible; and exclusive, concurrent or contraflow lanes working in peak periods. The normal minimum occupancy level is 2 or 3 occupants. Many jurisdictions exempt other vehicles, including motorcycles, charter buses, emergency and law enforcement vehicles, low-emission and other green vehicles, and/or single-occupancy vehicles paying a toll. HOV lanes are normally introduced to increase average vehicle occupancy and persons traveling with the goal of reducing traffic c ...
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Flyover (overpass)
An overpass (called an overbridge or flyover in the United Kingdom and some other Commonwealth countries) is a bridge, road, railway or similar structure that crosses over another road or railway. An ''overpass'' and ''underpass'' together form a grade separation. Stack interchanges are made up of several overpasses. History The world's first railroad flyover was constructed in 1843 by the London and Croydon Railway at Norwood Junction railway station to carry its atmospheric railway vehicles over the Brighton Main Line. Highway and road In North American usage, a ''flyover'' is a high-level overpass, built above main overpass lanes, or a bridge built over what had been an at-grade intersection. Traffic engineers usually refer to the latter as a ''grade separation''. A flyover may also be an extra ramp added to an existing interchange, either replacing an existing cloverleaf loop (or being built in place of one) with a higher, faster ramp that eventually bears left, but may b ...
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Sherwin-Williams
Sherwin-Williams Company is an American Cleveland, Ohio–based company in the paint and coating manufacturing industry. The company primarily engages in the manufacture, distribution, and sale of paints, coatings, floorcoverings, and related products to professional, industrial, commercial, and retail customers primarily in North and South America and Europe. At the end of 2020, Sherwin-Willams had operations in over 120 countries. History Sherwin-Williams dates from 1866, when Cleveland bookkeeper Henry Sherwin invested in Truman Dunham & Co., a paint distributorship. After the partnership dissolved in 1870, he formed Sherwin, Williams, & Co. with Edward Williams and A.T. Osborn. For its first factory, in 1873 the company acquired a cooperage in Cleveland from Standard Oil. Sherwin-Williams was incorporated in Ohio on July 16, 1884, two years after Osborn sold his interest in the company while retaining the retail operations. The company grew through acquisitions and expans ...
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Traffic Flow
In mathematics and transportation engineering, traffic flow is the study of interactions between travellers (including pedestrians, cyclists, drivers, and their vehicles) and infrastructure (including highways, signage, and traffic control devices), with the aim of understanding and developing an optimal transport network with efficient movement of traffic and minimal traffic congestion problems. History Attempts to produce a mathematical theory of traffic flow date back to the 1920s, when Frank Knight first produced an analysis of traffic equilibrium, which was refined into John Glen Wardrop, Wardrop's first and second principles of equilibrium in 1952. Nonetheless, even with the advent of significant computer processing power, to date there has been no satisfactory general theory that can be consistently applied to real flow conditions. Current traffic models use a mixture of empirical and Deductive reasoning, theoretical techniques. These models are then developed into Trans ...
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Public Art
Public art is art in any Media (arts), media whose form, function and meaning are created for the general public through a public process. It is a specific art genre with its own professional and critical discourse. Public art is visually and physically accessible to the public; it is installed in public space in both outdoor and indoor settings. Public art seeks to embody public or universal concepts rather than commercial, partisan or personal concepts or interests. Notably, public art is also the direct or indirect product of a public process of creation, procurement, and/or maintenance. Independent art created or staged in or near the public realm (for example, graffiti, street art) lacks official or tangible public sanction has not been recognized as part of the public art genre, however this attitude is changing due to the efforts of several street artists. Such unofficial artwork may exist on private or public property immediately adjacent to the public realm, or in natu ...
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Precast Concrete
Precast concrete is a construction product produced by casting concrete in a reusable molding (process), mold or "form" which is then cured in a controlled environment, transported to the construction site and maneuvered into place; examples include precast beam (structure), beams, and wall panels for tilt up construction. In contrast, cast-in-place concrete is poured into site-specific forms and cured on site. Recently lightweight expanded polystyrene foam is being used as the cores of precast wall panels, saving weight and increasing thermal insulation. Precast stone is distinguished from precast concrete by the finer construction aggregate, aggregate used in the mixture, so the result approaches the natural product. Overview Precast concrete is employed in both interior and exterior applications, from highway, bridge, and hi-rise projects to tilt-up building construction. By producing precast concrete in a controlled environment (typically referred to as a precast plant), ...
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Flyover Ramp
An overpass (called an overbridge or flyover in the United Kingdom and some other Commonwealth countries) is a bridge, road, railway or similar structure that crosses over another road or railway. An ''overpass'' and ''underpass'' together form a grade separation. Stack interchanges are made up of several overpasses. History The world's first railroad flyover was constructed in 1843 by the London and Croydon Railway at Norwood Junction railway station to carry its atmospheric railway vehicles over the Brighton Main Line. Highway and road In North American usage, a ''flyover'' is a high-level overpass, built above main overpass lanes, or a bridge built over what had been an at-grade intersection. Traffic engineers usually refer to the latter as a '' grade separation''. A flyover may also be an extra ramp added to an existing interchange, either replacing an existing cloverleaf loop (or being built in place of one) with a higher, faster ramp that eventually bears left, but ...
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High Five
High five is a friendly gesture in which one individual slaps another's hand. High five (and variants such as Hi5, Hi-5, and Hi-Five) may also refer to: Music * Hi-5 (Australian group), an Australian children's musical group * Hi-5 (Greek band), a Greek all-girl pop group * Hi-5 (South African band), a South African boy band * Hi-Five, a rhythm and blues quintet from Waco, Texas ** ''Hi-Five'' (album) * The Hi-Fives, a rock and roll band from San Francisco, California * Hi-Five (Israeli band), a 1990s Israeli boy band * Jim Lowe and the High Fives, 1950s band * ''High Five'' (album), by Teen Top * "Hi-Five" (song), a song by Superfly * "High Five" (Yuma Nakayama song), 2014 * "High 5 (Rock the Catskills)", a song by Beck from ''Odelay'' Television * ''Hi-5'' (American TV series), the television series starring the American group * ''Hi-5'' (Australian TV series), the television series starring the Australian group * ''Hi-5'' (British TV series), the television series starr ...
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Central Reservation
The median strip, central reservation, roadway median, or traffic median is the reserved area that separates opposing lanes of traffic on divided roadways such as divided highways, dual carriageways, freeways, and motorways. The term also applies to divided roadways other than highways, including some major streets in urban or suburban areas. The reserved area may simply be paved, but commonly it is adapted to other functions; for example, it may accommodate decorative landscaping, trees, a median barrier, or railway, rapid transit, light rail, or streetcar lines. Regional terminology There is no international English standard for the term. Median, median strip, and median divider island are common in North American and Antipodean English. Variants in North American English include regional terms such as neutral ground in New Orleans usage. In British English the central reservation or central median the preferred usage; it also occurs widely in formal documents in som ...
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