What purpose do both the F-Shaped barrier and the Jersey barrier serve?
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F-Shape barrier The F-shape barrier is a concrete crash barrier, originally designed to divide lanes of traffic on a highway. It is a modification of the widely used Jersey barrier design, and is generally considered safer.
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Jersey barrier A Jersey barrier or Jersey wall is a modular concrete or plastic barrier employed to separate lanes of traffic. It is designed to minimize vehicle damage in cases of incidental contact while still preventing the crossover case of a head-on collision. Jersey barriers are also used to reroute traffic and protect pedestrians and workers during highway construction, as well as temporary and semi-permanent protections against landborne attack such as suicide vehicle bombs. A Jersey barrier is also known in the western United States as K-rail, or K-wall, a term borrowed from the California Department of Transportation specification for temporary concrete traffic barriers, or colloquially as a Jersey bump. Plastic water-filled barriers of the same general shape are also now commonly called Jersey barriers.
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Cable-stayed bridge A cable-stayed bridge has one or more "towers" (or "pylons"), from which cables support the bridge deck. A distinctive feature are the cables which run directly from the tower to the deck, normally forming a fan-like pattern or a series of parallel lines. This is in contrast to the modern suspension bridge, where the cables supporting the deck are suspended vertically from the main cable, anchored at both ends of the bridge and running between the towers. The cable-stayed bridge is optimal for spans longer than cantilever bridges and shorter than suspension bridges. This is the range where cantilever bridges would rapidly grow heavier if the span were lengthened, while suspension bridge cabling would not be more economical if the span were shortened.
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List of New Jersey hurricanes A New Jersey hurricane is a tropical cyclone originating in the Atlantic Ocean that affects the state of New Jersey.</onlyinclude> Due to its location, few hurricanes have hit the state directly, though numerous hurricanes have passed near or through New Jersey in its history. About every 10 years, hurricanes approach the coastline close enough to send waves over barrier islands' dunes and into back bays. According to an estimate by meteorologist George Prouflis, the chances for a direct hit by a hurricane on the Jersey shore each year is 1 in 200.
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Shared use path A shared-use path or mixed-use path is a form of infrastructure that supports multiple recreation and transportation opportunities, such as walking, bicycling, inline skating and people in wheelchairs. Motorcycles and mopeds are normally prohibited. A shared-use path typically has a surface that is asphalt, concrete or firmly packed crushed aggregate. In the U.S., the 1999 AASHTO Guide for the Development of Bicycle Facilities defines a shared-use path as being physically separated from motor vehicular traffic with an open space or barrier. Shared-use paths differ from exclusive bikeways in that shared-use paths are designed to include pedestrians even if the primary anticipated users are cyclists. Some shared paths have been built as rail trails.
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Ocean Drive (New Jersey) Ocean Drive is a series of local roads in southern New Jersey, connecting Atlantic City to Cape May along barrier islands on the Atlantic Ocean. It consists of several roads and includes all five toll bridges owned by the Cape May County Bridge Commission.
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Barrière d’Enfer The Barrière d'Enfer (English: "Gate of Hell") is a pair of tollhouses that once served as a gate through the Wall of the Farmers-General (Mur des Fermiers généraux) at the current location of the Place Denfert-Rochereau.
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Suicide barrier A suicide barrier is a barrier on a bridge (often a so-called suicide bridge known for suicide attempts), observation deck or other structure designed to prevent people from attempting suicide by deliberately jumping. Many suicide barriers are tall and fence-like. But suicide nets, which extend horizontally below the bridge and preserve views outward, have been used on the Bern Muenster Terrace in Bern, Switzerland and the Cornell University campus in Ithaca, New York. In 2009 a barrier was built for the Humber Bridge, and in April 2017, California began construction on a $200 million mesh barrier beneath the Golden Gate Bridge.
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HMS Jersey (F72) HMS "Jersey" was a J-class destroyer of the Royal Navy.
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United States Access Board The United States Access Board (also known as the Architectural and Transportation Barriers Compliance Board) is an independent agency of the United States government devoted to accessibility for people with disabilities. Created in 1973 to ensure access to federally funded facilities, the Board is now a leading source of information on accessible design. The Board develops and maintains design criteria for the built environment, transit vehicles, telecommunications equipment, and electronic and information technology. It also provides technical assistance and training on these requirements and on accessible design and continues to enforce accessibility standards that cover federally funded facilities.
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Multi-purpose stadium Multi-purpose stadiums are a type of stadium designed to be easily used by multiple types of events. While any stadium could potentially host more than one type of sport or event, this concept usually refers to a specific design philosophy that stresses multifunctionality over specificity. It is used most commonly in Canada and the United States, where the two most popular outdoor team sports – football and baseball – require radically different facilities. Football uses a rectangular field (Canadian football fields are larger than American ones), while baseball is played on a diamond and large outfield. This requires a particular design to accommodate both, usually an oval. While building stadiums in this way means that sports teams and governments can share costs, it also imposes some challenges.
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Air gap (networking) An air gap, air wall or air gapping is a network security measure employed on one or more computers to ensure that a secure computer network is physically isolated from unsecured networks, such as the public Internet or an unsecured local area network. The name arises from the technique of creating a network that is physically separated (with a conceptual "air gap") from all other networks. The air gap may not be completely literal, as networks employing the use of dedicated cryptographic devices that can tunnel packets over untrusted networks while avoiding packet rate or size variation can be considered "air gapped", as there is no ability for computers on opposite sides of the "gap" to communicate.
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Electrified palisade fences An electrified palisade fence is a steel or aluminium palisade fence used as a defensive barrier for the protection of property, particularly in isolated regions.
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National Barrier Asset The National Barrier Asset is a modular fence system established in 2004 by the British government to provide UK police forces with a capability to deploy temporary specialist protective security barriers to protect high profile locations or temporary events, such as political party conferences, from vehicle borne suicide attacks.
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Trench shield Trench shields (also called Trench Boxes or Trench Sheets) are steel or aluminum structures used for protecting utility workers while performing their duties within a trench. They are customarily constructed with sidewalls of varying thicknesses held apart by steel or aluminum spreaders. Spreaders can be interchanged to match the width of the trench. The different materials and building designs lead to a variety of depth ratings, i.e. the depth of a trench that the shield can withstand a collapse without buckling. Depth ratings are determined by registered professional engineers.
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Coulomb barrier The Coulomb barrier, named after Coulomb's law, which is in turn named after physicist Charles-Augustin de Coulomb, is the energy barrier due to electrostatic interaction that two nuclei need to overcome so they can get close enough to undergo a nuclear reaction. This energy barrier is given by the electrostatic potential energy:
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Little Beach, New Jersey Little Beach is a barrier island along the coast of New Jersey. It is believed to be the last uninhabited barrier island left on the U.S. Atlantic coast. It is part of Galloway Township, in Atlantic County, New Jersey.
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Channelization (roads) Channelization is an engineering concept which employs the use of secondary roads to separate certain flows of traffic from the main traffic lanes. This method came into favor in the United States in the 1950s. One of the most effective and efficient methods of controlling the traffic on a highway is the adoption of high intersection geometric design standards. Channelization is an integral part of at grade intersections and is used to separate turning movements from through movements where this is considered advisable and hence helps reduce the intensity and frequency of loss of life and property due to accidents to a large extent. Proper Channelization increases capacity, improves safety, provides maximum convenience, and instils driver confidence. Improper Channelization has the opposite effect and may be worse than none at all. Over Channelization should be avoided because it could create confusion and worsen operations.
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Concrete step barrier A concrete step barrier is a safety barrier used on the central reservation of motorways and dual carriageways as an alternative to the standard steel crash barrier.
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Newark Bay Newark Bay is a tidal bay at the confluence of the Passaic and Hackensack Rivers in northeastern New Jersey. It is home to the Port Newark-Elizabeth Marine Terminal, the largest container shipping facility in Port of New York and New Jersey, the third largest and one of the busiest in the United States. An estuary, it is periodically dredged to accommodate ocean-going ships.
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Construction barrel Construction barrels (officially known as "drums" in the United States) are traffic control devices used to channel motor vehicle traffic through construction sites or to warn motorists of construction activity near the roadway. They are used primarily in the United States, but are occasionally used in Canada and Mexico. They are an alternative to traffic cones which are smaller and easily hit by vehicles. Drums tend to command more respect from drivers than cones as they are larger, more visible, and give the appearance of being formidable obstacles.
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Bat rolling The performance of composite baseball bats typically improves with age. The reason for this is the "breaking-in process"; in other words, the force of striking the ball over and over eventually breaks down the bat's composite fibers and resinous glues that different manufacturers use. This improves the bat's Bat Performance Factor (BPF) or Ball Exit Speed Ratio (BESR). These factors are directly related to the rate of speed at which a struck ball comes off the bat; with higher speeds representing a greater danger to players in the infield (closer to the batter). Bats used in Little League play are required to remain below a league-specified values to be allowed in league play when new and after Accelerated Break-In (ABI).