Specification :
Bollards / Stick Cone
Stick Cone 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.[ 5]
Bollards / Stick Cone 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 / Stick Cone can be used to enclose car-free zones: Removable Bollards / Stick Cone allow access for service and emergency vehicles.[ citation needed] Bollards / Stick Cone and other Street Furniture are used to control overspill parking onto Sidewalks and verges.[ 6]
Tall ( 1.15 meter/ 4 foot) slim ( 10 cm/ 4 inch) fluorescent red or orange plastic Bollards / Stick Cone 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. Also referred to as delineators, 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.
Movable bollards
A rising traffic bollard
Rising Bollards
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 / Stick Cone( also known as telescopic, " pop-up" , retractable or collapsible 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. They 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.
Retractable Bollards
A retractable bollard is a short post which can be lowered, either manually or automatically, into the ground when not needed. It is especially useful in a mixed-use public space which supports both pedestrian use and emergency and or service vehicle use. This flexible use creates opportunities for vehicular control as well as pedestrian accessibility in a mixed use public space. Manually retractable Bollards / Stick Cone are appropriate for new projects and especially for reconstruction projects since they do not require retrofitting into existing landscapes, or any electrical hookups or hydraulic systems. A " manually retractable bollard" , however is lowered by a key mechanism. Retractable bollard receivers are installed in concrete below grade. When retracted, the Bollards / Stick Cone are flush with the pavement to prevent trip-fall hazards. Many of these Bollards / Stick Cone have integrated locking systems, preventing unauthorized removal or adjustment of the Bollards / Stick Cone above or below ground. In place, the bollard posts are easily lifted from within the in-ground receiver, and locked into place. With a simple twist the bollard cylinder retracts flush into the surface.
Removable Bollards
When only occasional change of access is required, removable Bollards / Stick Cone are significantly less costly than rising or retractable Bollards / Stick Cone that raise and lower by mechanical or hydraulic means. A " Removable" Bollard is a bollard that can be secured using pins; keys or a self-locking taper to make it removable and easily replaceable for allowing access or when a bollard is damaged. A removable bollard typically has a permanently installed mount or sleeve below grade, while the sleeve’ s top is flush with the pavement. The mating bollard can be manually lifted out of the mount to allow access. This system can include a locking mechanism, either exposed or concealed, to prevent unauthorized removal. Most removable Bollards / Stick Cone are not designed for high-impact resistance and are usually not used in anti-ram applications. Many securing devices enable access of electrical wiring and can be capped when the bollard is not in use.
Fold-Down Bollards/ Stick Cone
Similar systems, using Bollards / Stick Cone that are hinged at ground level, and fold flat allowing vehicles to drive over them ( " fold-down" bollards) , can be deployed in similar circumstances.[ 7]
Robotic Bollards/ Stick Cone
The term " robotic bollards" has been applied to traffic barricades capable of moving themselves into position on a roadway.[ 8]
Self-Righting Bollards/ Stick Cone
Self-righting Bollards / Stick Cone can take a nudge from a vehicle and return to the upright position without causing damage to the bollard or vehicle. Popular amongst car park buildings and other parking and high vehicle volume areas.
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