Barrier
Encyclopedia
A barrier or barricade
is a physical structure which blocks or impedes something.
Barrier may also refer to:
Barricade
Barricade, from the French barrique , is any object or structure that creates a barrier or obstacle to control, block passage or force the flow of traffic in the desired direction...
is a physical structure which blocks or impedes something.
Barrier may also refer to:
Physical barriers
- Automatic full barriersAutomatic full barriersAutomatic full barriers are a set of four half-barriers closing a road at a railway level crossing.Typically the barriers on the approach side to the crossing are lowered first with those on the exit side following shortly after. The sequence timing is set to allow enough time for a vehicle or...
, which serve to block roads at railway crossings - Crash barrier, used to prevent vehicles from leaving the roadway
- Crowd control barrierCrowd control barrierCrowd control barriers , are commonly used at many public events. They are frequently visible at sporting events, parades, political rallies, demonstrations, and outdoor festivals...
, a type of temporary fencing - Barrier TreatyBarrier TreatyThe "Barrier Treaties" were the names of three agreements signed and ratified during or immediately after the War of Spanish Succession.-First:...
, series of agreements that set up the Dutch Barrier, a line of military fortification designed to protect the Dutch in the eighteenth century - Fitch Barrier, a plastic barrel filled with sand or water, used on highways as an impact attenuator
- Barrier isolatorBarrier isolatorA barrier isolator, or simply an isolator, is a device that provides a physical barrier between a laboratory technician and a work process...
, a physical barrier between a laboratory technician and a work process - Jersey barrierJersey barrierA Jersey barrier or Jersey wall is a modular concrete barrier employed to separate lanes of traffic. It is designed to both minimize vehicle damage in cases of incidental contact while still preventing crossover in the case of head-on accidents....
or K-rail, a type of concrete barrier used to divide highway traffic - Mojo BarrierMojo BarrierMojo Barriers are a type of temporary fencing commonly used at public events such as concerts and festivals. They are specifically used for separating the area open to the public from the stage. These barriers were developed in the 1980s by Dutch event organisor Mojo Concerts...
, a type of temporary fencing used at festivals and concerts - Noise barrierNoise barrierA noise barrier is an exterior structure designed to protect sensitive land uses from noise pollution...
, used to attenuate noise pollution - RoadblockRoadblockA roadblock is a temporary installation set up to control or block traffic along a road. The reasons for one could be:*Roadworks*Temporary road closure during special events*Police chase*Robbery*Sobriety checkpoint...
, a temporary installation to control or block traffic on a road - Thames BarrierThames BarrierThe Thames Barrier is the world's second-largest movable flood barrier and is located downstream of central London. Its purpose is to prevent London from being flooded by exceptionally high tides and storm surges moving up from the sea...
, a flood control structure on the River Thames in England - Separation barrierSeparation barrierA separation barrier is a wall or fence constructed to limit the movement of people across a certain line or border, or to separate two populations. These structures vary in placement with regard to international borders and topography...
, a wall or fence which prevents the movement of people across a border, or separates populations - Vapor barrierVapor barrierA vapor barrier is often used to refer to any material for damp proofing, typically a plastic or foil sheet, that resists diffusion of moisture through wall, ceiling and floor assemblies of buildings and of packaging...
, any material used to resist diffusion of moisture through walls, ceilings or floors - Blood-brain barrierBlood-brain barrierThe blood–brain barrier is a separation of circulating blood and the brain extracellular fluid in the central nervous system . It occurs along all capillaries and consists of tight junctions around the capillaries that do not exist in normal circulation. Endothelial cells restrict the diffusion...
, a separation of circulating blood and the brain extracellular fluid - Traffic barrierTraffic barrierTraffic barriers keep vehicles within their roadway and prevent vehicles from colliding with dangerous obstacles. Traffic barriers installed at the road side also prevent errant vehicles from traversing steep slopes. Traffic barriers installed at the medians of divided highways are also referred...
, used to keep vehicles within their roadway - Indo-Bangladeshi Barrier
Barriers by analogy
- Barrier (computer science)Barrier (computer science)- Threads synchronization primitive :In parallel computing, a barrier is a type of synchronization method. A barrier for a group of threads or processes in the source code means any thread/process must stop at this point and cannot proceed until all other threads/processes reach this barrier.Many...
, a type of synchronization in parallel computing- Memory barrierMemory barrierMemory barrier, also known as membar or memory fence or fence instruction, is a type of barrier and a class of instruction which causes a central processing unit or compiler to enforce an ordering constraint on memory operations issued before and after the barrier instruction.CPUs employ...
, an instruction to enforce an ordering constraint on memory operations in a computer program
- Memory barrier
- Language barrierLanguage barrierLanguage barrier is a figurative phrase used primarily to indicate the difficulties faced when people who have no language in common attempt to communicate with each other...
, difficulty in communications caused by language difference - Sound barrierSound barrierThe sound barrier, in aerodynamics, is the point at which an aircraft moves from transonic to supersonic speed. The term, which occasionally has other meanings, came into use during World War II, when a number of aircraft started to encounter the effects of compressibility, a collection of several...
, the point at which an aircraft moves from transonic to supersonic speed - Trade barrierTrade barrierTrade barriers are government-induced restrictions on international trade. The barriers can take many forms, including the following:* Tariffs* Non-tariff barriers to trade** Import licenses** Export licenses** Import quotas** Subsidies...
, a restriction of trade by a government
Places
- Barrier, Voerendaal, a place in the municipality of Voerendaal, in southeastern Netherlands
- The BarrierThe BarrierThe Barrier is a lava dam retaining the Garibaldi Lake system in southwestern British Columbia, Canada. It is over 300 m in thickness and about 2 km wide where it impounds the lake....
, a lava dam in southwestern British Columbia, Canada - The Barrier, Great Ice Barrier, Victoria Barrier etc., later 19th-eartly 20th century names for the Ross Ice ShelfRoss Ice ShelfThe Ross Ice Shelf is the largest ice shelf of Antarctica . It is several hundred metres thick. The nearly vertical ice front to the open sea is more than 600 km long, and between 15 and 50 metres high above the water surface...
, Antarctica - Barrier BayBarrier BayBarrier Bay is an open bay in the Antarctic coastal angle formed by the coast and the western end of the West Ice Shelf. Charted by Norwegian cartographers from aerial photographs taken by the Lars Christensen Expedition, 1936–1937, and named by them Barrierevika . Barrier is an obsolete term...
, an open bay in Antarctica - Barrier reefBarrier reefBarrier reef may refer to:*a kind of coral reef*the Great Barrier Reef in Australia*the Mesoamerican Barrier Reef System*the Belize Barrier Reef*the New Caledonia Barrier Reef*Barrier Reef , an Australian television series...
, a type of coral reef running along a coast for a long distance, e.g.:- Belize Barrier ReefBelize Barrier ReefThe Belize Barrier Reef is a series of coral reefs straddling the coast of Belize, roughly offshore in the north and in the south within the country limits...
, a series of coral reefs straddling the coast of Belize - Great Barrier ReefGreat Barrier ReefThe Great Barrier Reef is the world'slargest reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,600 kilometres over an area of approximately...
, in the Coral Sea off the coast of Queensland in north-east Australia
- Belize Barrier Reef
- Gilf KebirGilf KebirGilf Kebir is a plateau in the New Valley Governorate of the remote southwest corner of Egypt, and southeast Libya. Its name translates as "the Great Barrier"...
, Arabic for "the Great Barrier" in Egypt - Great Barrier IslandGreat Barrier IslandGreat Barrier Island is a large island of New Zealand, situated to the north-east of central Auckland in the outer Hauraki Gulf. With an area of it is the fourth-largest island of New Zealand's main chain of islands, with its highest point, Mount Hobson, rising...
, in the north of New Zealand - Thames BarrierThames BarrierThe Thames Barrier is the world's second-largest movable flood barrier and is located downstream of central London. Its purpose is to prevent London from being flooded by exceptionally high tides and storm surges moving up from the sea...
, a flood control structure on the River Thames in England - A misspelling of Barriere, British ColumbiaBarriere, British ColumbiaBarriere is a district municipality in central British Columbia, Canada, located 66 km north of the larger city of Kamloops on Highway 5. It is situated at the confluence of the Barriere and North Thompson Rivers in the Central North Thompson Valley...
, a small community in Thompson-Nicola Regional District, British Columbia, Canada - Wall (Western Sahara)
In fiction
- "Great BarrierGreat Barrier"Great Barrier" is the fourth episode of the fourth season of Law & Order: Criminal Intent. Written by Diana Son and René Balcer, it is the third Criminal Intent episode to feature recurring character Nicole Wallace .-Plot summary:...
", television episode of Law & Order: Criminal Intent - The Great Barrier (film)The Great Barrier (film)The Great Barrier is a 1937 British drama film directed by Milton Rosmer and Geoffrey Barkas and starring Richard Arlen, Lilli Palmer and Antoinette Cellier. The film depicts the construction of the Canadian Pacific Railway...
, a 1937 British film - Barrier (video game), a 1979 arcade game by Vectorbeam
- BarriersBarriersBarriers is a British children's television series, created and written by William Corlett, and made by Tyne Tees Television for ITV between 1981 and 1982....
, a UK television series - Bariera, a 1966 Polish film, released in the U.S. as Barrier
- Barrierfreeman, a fictional character in anime Ultimate Muscle
- The Great Barrier (Star Trek)
Other uses
- Barrier HighwayBarrier HighwayThe Barrier Highway is a highway in New South Wales and South Australia signposted as in South Australia and in New South Wales, Australia.The Barrier Highway starts at Nyngan where it joins the Mitchell Highway. It heads west past Hermidale and Boppy Mountain to Cobar, a mining town. It then...
, a state highway in New South Wales, Australia - Smith BarrierSmith BarrierSmith Barrier , was an American sports journalist. He was the longtime Executive Sports Editor of Greensboro News & Record and served as president of United States Basketball Writers Association from 1970 - 1971. He is a charter member of the United States Basketball Writers Association Hall of...
(died 1989), American sports journalist