A bollard is a short vertical post typically found where large ships dock. A ship /ʃɪp/ is a large vessel that floats on water Ships are generally distinguished from Boats based on size While originally it only meant a post[1] used on a quay for mooring, the word now also describes a variety of structures to control or direct road traffic. A quay, pronounced 'key' is a Wharf or bank where Ships and other vessels are loaded The term may be related to bole, meaning the lower trunk of a tree. In Botany, trunk (or bole) refers to the main structural member of a Tree that supports the Branches and is supported by and directly attached
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A bollard, a name inherited from the Norman-French name Boulard still often found in Normandy, is a short wooden, iron or stone post used on a quayside for mooring ships. vessel is said to be moored when it is fastened to a fixed object such as a Pier, Quay or the seabed or to a floating object such as an anchor buoy Mooring bollards are rarely totally cylindrical, but typically have a larger diameter near the top to discourage mooring warps (docklines) from coming loose. Single bollards will sometimes include a cross rod to allow the mooring to be bent into a figure eight.
Bollards are rigid posts that can be arranged in a line to close a road or path to vehicles above a certain width, and to separate traffic from pedestrians. The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom, the UK or Britain,is a Sovereign state located [2]
Bollards can be mounted near enough to each other that they block ordinary cars, for instance, but wide enough to permit special-purpose vehicles through. Bollards can be used to enclose car-free zones: removable bollards allow access for service and emergency vehicles. Car-free zones (also known as auto-free zones and pedestrian zones) are areas of a city or town in which automobile traffic is prohibited
Tall (1. 15 meter/4 foot) slim (10 cm/4 inch) fluorescent red or orange plastic bollards with reflective tape and removable heavy rubber bases are frequently used in road traffic control where traffic cones would be inappropriate due to their width and ease of movement. For the road traffic science see various articles under Road traffic management. Traffic cones, also called toddlers, road cones, safety cones, construction cones, pylons, Also referred to as deliniators, the bases are usually made from recycled plastic, and can be easily glued to the road surface to resist movement following minor impacts from passing traffic. Sometimes called "T-Top Bollards" from the T-bar moulded into the top for tying tape, the bollard is an economical, cost effective and safe delineation system designed especially for motorways and busy arterial roads. In conjunction with plastic tape, it is also effective in pedestrian control.
The American Heritage Dictionary describes this use of Bollard as "chiefly British", although the term has crept into the jargon of some American universities where dense traffic necessitates the use of bollards for Access Control. Rome ( Roma ˈroma Roma is the capital city of Italy and Lazio, and is Italy's largest and most populous city with more than 2 Italy (Italia officially the Italian Republic, (Repubblica Italiana is located on the Italian Peninsula in Southern Europe, and on the two largest The American Heritage Dictionary of the English Language ( AHD) is an American Dictionary of the English language published by The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom, the UK or Britain,is a Sovereign state located The United States of America —commonly referred to as the
Bollards are frequently used to direct traffic around a traffic island. A traffic island can be a Median strip, a strip in the middle of a Road. A recent development is the "rising bollard" - a bollard that can be lowered entirely below the road surface to enable traffic to pass, or raised to block traffic. Rising bollards are used to secure sensitive areas from attack, or to enforce traffic rules that are time related or restrict access to particular classes of traffic.
A "manually retractable bollard", however is lowered by a key mechanism. It is especially useful in a mixed-use public space which supports both pedestrian use and emergency and or service vehicle use.
The term "robotic bollards" has been applied to traffic barricades capable of moving themselves into position on a roadway. [3]
Permanent and retractable buried bollards are increasingly common around the world to hinder vehicle-based terrorist actions from achieving close proximity to buildings, and are also used to prevent Ram-raiding. Terrorism is the systematic use of terror especially as a means of coercion In Architecture, Construction, Engineering and real estate development the word building may refer to one of the following Any man-made Ram-raiding is a variation on Burglary in which a Van, SUV, car or other heavy vehicle is driven through the windows or doors of a closed shop usually
Bollards are also used as a form of permanent utility location. Utility location is the process of identifying and labeling Public utility Mains which are underground
In mountaineering, a bollard is a large pile of snow or a block of ice shaped to form a secure anchor point. “Alpinist” redirects here See also Alpinist (magazine Mountaineering is the Sport, Hobby or Profession of The size of a bollard anchor varies depending on the snow condition. Larger size is preferred for new snow which is soft and loose. While bollards can be quite strong, they are time consuming to build and not as commonly used as flukes, pickets, ice screws and Abalokov threads. An anchor is an object often made out of metal that is used to attach a ship to the bottom of a body of water at a specific point In Rock climbing, an anchor can be any way of attaching the climber the rope or a load to rock ice steep dirt or a building by either permanent or temporary means An ice screw is a Screw used to protect a climb over steep ice or for setting up a Crevasse rescue system
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A bollard blocking a path at Princeton University. Princeton University is a private Coeducational research university located in Princeton, New Jersey. |
Traffic Control bollards separating the road from the worksite. |
Internally illuminated traffic bollard used in Hong Kong |
T-Top Bollard (on right) next to a large traffic cone. Hong Kong ( officially the Hong Kong Special Administrative Region, is a territory located on China 's south coast on the Pearl River Delta, and borders |
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Manually Retractable Bollard at Battery Park, NYC |
Amsterdammertje, a typical steel bollard in Amsterdam |
An old bollard in east London |
A bollard in City of London Colours |