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Manually retractable bollards (lowered by a key mechanism) are found useful in some cases because they require less infrastructure. [18] The term "robotic bollards" has been applied to traffic barricades capable of moving themselves into position on a roadway. [19]
The city previously installed retractable steel bollards to restrict vehicle access to Bourbon Street, but the posts stopped working after being littered with Mardi Gras beads and other refuse.
Retractable bollards allow to restrict access inside city centers (i.e. to delivery trucks resupplying outlet stores). Opening and closing of such barriers is traditionally done manually, through an electronic pass [ 92 ] but can even be done by means of ANPR cameras connected to the bollard system.
Stanchions and velvet rope. A stanchion (/ ˈ s t æ n tʃ ən /) is a sturdy upright fixture that provides support for some other object. [1] It can be a permanent fixture. In nautical terms, the stanchion is the thick and high iron that with others equal or similar is placed vertically on the gunwale, stern and tops.
Electric fencing to protect a walkway against wildlife. Pilanesberg Game Reserve, South Africa A wolf jumping over an electric fence only touching the positive pole not getting an electric shock Electric fence with a danger electricity Warning Sign on it, around an animal cage. Electric fences are useful for controlling the movements of wild ...
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