The popularity of bollards has dramatically increased during the past decade due to
                                heightened worries about security. They are a simple, practical, and cost-effective way
                                of erecting anti-ram perimeter defense without creating a visual sense of a fortified
                                bunker. Bollards are commonly used for traffic direction and control, and in purely
                                attractive applications. On the other hand, metal bollards for sale can
                                serve many characteristics beyond security. They can be used for purely aesthetic
                                purposes, functioning as landscaping elements. Bollards can make visible boundaries of
                                any property, or split areas within sites. They can control traffic and they are often
                                arranged to permit pedestrian access while preventing entry of vehicles.
                            Removable and retractable bollards can allow different amounts of access restriction for
                                a variety of circumstances. They frequently tell us where we are able to and cannot
                                drive, park, bike, or walk, protect us from crime, shield vehicles and property from
                                accidents, and add aesthetic features to our own building exteriors and surrounding
                                areas. Bollards can incorporate other functions including lighting, surveillance
                                cameras, bicycle parking or perhaps seating. Decorative bollards are created in a number
                                of patterns to harmonize with an array of architectural styles. The prevalence of the
                                very common kind of security bollard, the concrete-filled steel pipe, has encouraged the
                                manufacturing of decorative bollards made to fit as covers over standard steel pipe
                                sizes, adding pleasing form to the required function.
                            What Is A Bollard?
                            A bollard is a short vertical post. Early bollards were for mooring large ships at dock,
                                and they are still being used today. An average marine bollard is created in cast iron
                                or steel and shaped somewhat like a mushroom; the enlarged top is made to prevent
                                mooring ropes from slipping off.
                            Today, the phrase bollard also describes a variety of structures applied to streets,
                                around buildings, as well as in landscaping. In accordance with legend, the first street
                                bollards were actually cannons – sometimes reported to be captured enemy weapons –
                                planted in the ground as boundary posts and town markers. When the flow of former
                                cannons was applied up, similarly shaped iron castings were designed to match the same
                                functions. Bollards have since become many varieties that are widely employed on roads,
                                specifically in urban areas, as well as outside supermarkets, restaurants, hotels,
                                shops, government buildings and stadiums.
                            The most typical kind of bollard is fixed. The simplest is an unaesthetic steel post,
                                about 914 to 1219 mm (36 to 48 in.) above-grade. Specially manufactured bollards include
                                not merely simple posts, but also a multitude of decorative designs. Some feature square
                                or rectangular cross-sections, but most are cylindrical, sometimes having a domed,
                                angled, or flat cap. They are offered in a number of metallic, painted, and durable
                                powder coat finishes.
                            Removable bollards are used where the requirement to limit access or direct traffic
                                changes occasionally. Both retractable and fold-down styles are employed where selective
                                entry is often needed, and therefore are designed therefore the bollard can easily be
                                collapsed to ground level and quickly re-erected. Both retractable units may be manually
                                operated or automated with hydraulic movements. Movable bollards are large, heavy
                                objects – frequently stone or concrete – that count on their weight instead of
                                structural anchoring in which to stay place. They are made to be moved rarely, and then
                                only with heavy machinery like a fork-lift.
                            Bollards generally belong to three kinds of applications:
                            Decorative Bollards – decorative bollards for architectural and/or landscaping
                                highlights;
                            Traffic and Safety Bollards – bollards which provide asset and pedestrian safety, as well
                                as traffic direction; and
                            Security Bollards and Post Covers – decorative, impact-resistant bollard enhancements
                            Decorative Bollards
                            Some bollards are intended purely to become an ornament. As standalone architectural or
                                landscaping features, they are able to border, divide, or define an area. They may also
                                be accents, sentries, or supporting players to larger, more dramatic architectural
                                gesture.
                            Decorative bollards are manufactured to harmonize with both traditional and contemporary
                                architectural styles. The second lean toward visual simplicity – often straight-sided
                                posts with a number of reveals close to the top. Styles created to match various
                                historic periods usually have more elaborate shapes and surface details. Included in
                                this are flutes, bands, scrolls along with other ornamentation.The post-top is actually
                                a distinctive feature; traditional bollard design often includes elaborate decorative
                                finials, whereas contemporary versions frequently include a simple rounded or slanted
                                top to deter passersby from leaving trash or utilizing them for impromptu seating. On
                                the contrary, they may be sometimes made flat and broad specifically to encourage
                                seating. Common decorative bollard materials include iron, aluminum, stainless steel,
                                and concrete.
                            Ornamental designs with elaborate detail are usually manufactured from iron or aluminum
                                casting. Aluminum bollards are desirable for applications where weight is a concern, for
                                instance a removable bollard. Aluminum units tend to be slightly more expensive than
                                iron. For applications where a decorative bollard could be subjected to destructive
                                impact, ductile iron is really a safer choice than more brittle metals, as force will
                                deform the metal as opposed to shatter and transforming it into possible hazardous
                                flying projectiles.
                            Iron and aluminum bollards are usually manufactured by sand-casting – a traditional
                                foundry technique which is economical and well-suited to objects this size. However,
                                sand-cast objects frequently bear surface irregularities that have a tendency to leave
                                the finished product less attractive to the attention. If high-finish consistency is
                                desired, seek a manufacturer which will machine 100% in the surface after casting to
                                create units having a uniform surface for optimum visual appeal.
                            Finish is a vital consideration in a decorative bollard, from functional along with
                                aesthetic standpoints. Bollards are, by their nature, vulnerable to being scratched or
                                nicked by pedestrians and vehicles. Those located near roadways are in contact with a
                                reasonably aggressive environment; petrochemical residues and splashes of diluted road
                                de-icing salts may compromise some painted finishes. Factory-applied powder coating –
                                which can be seen on iron, aluminum, and steel – is surely an especially durable kind of
                                painted finish. The application form process increases a coating with very consistent
                                coverage. During coating, any bare metal is likely to attract the powder, eliminating
                                pinholes in coverage. The baking process that completes the conclusion gives it
                                additional toughness and abuse resistance.
                            In applications where greater physical abuse is predictable, plastic
                                    bollards manufactured from aluminum can be a better choice than iron. When
                                the finish coat is damaged, aluminum oxidizes to some color which is generally more
                                acceptable than the red rust created by iron. Aluminum and stainless-steel are also
                                offered in a quantity of bare metal finishes. Functionality may be included in the
                                otherwise decorative bollard. As an example, common option is the chain eye – linking
                                two or more bollards with chain, creating a simple traffic direction system. A big metal
                                loop or arm on the side of the post allows parking and locking of bicycles, a
                                progressively popular choice as more people seek alternative green transportation.
                                Bollards may also contain lighting units or security devices, like motion sensors or
                                cameras.
                            Traffic and Safety Bollards
                            The most common bollard applications are traffic direction and control, in addition to
                                safety and security. The initial function is achieved from the visual presence of the
                                bollards, and at some level by impact resistance, although, in these applications visual
                                deterrence is the primary function. Security and safety applications depend upon higher
                                degrees of impact resistance. The main difference between both is safety designs are
                                concerned with stopping accidental breach of the defined space, whereas security is all
                                about stopping intentional ramming.
                            Closely spaced lines of bollards can form a traffic filter, separating motor vehicles
                                from pedestrians and bicycles. Placing the posts with 1 m (3 ft) of clearance between
                                the two, for example, allows easy passage for humans and human-powered vehicles – such
                                as wheelchairs or shopping carts – but prevents the passage of cars. Such installations
                                tend to be seen before zcvjbu parking area entrance to your store, as well as at the
                                mouths of streets transformed into outdoor malls or ‘walk streets’. In designing bollard
                                installations for any site, care must be delivered to avoid locating them where they
                                will become a navigational hazard to authorized vehicles or cyclists.
                            Some applications for traffic guidance depend on the cooperation of drivers and
                                pedestrians and never require impact resistance. A type of bollards linked by a chain
                                presents a visual cue not to cross the boundary, though it may be easy enough for any
                                pedestrian to travel over or beneath the chain if they choose. Bollards made to direct
                                traffic are sometimes made to fold, deflect, or break away on impact.
                            Adding greater collision resistance allows a bollard to enforce traffic restrictions
                                instead of merely suggesting them. Plain pipe bollards are often placed on the corners
                                of buildings, or flanking lamp-posts, public phones, fire hydrants, gas pipes as well as
                                other installations that ought to be protected from accidental contact. A bollard in the
                                side of a roadway prevents cars from over-running sidewalks and harming pedestrians.
                                Bell-shaped bollards can in fact redirect a car back onto the roadway when its wheels
                                hit the bollard’s sloped sides.
                            They may be employed where U-turns and tight-radius turns are frequent. This type of
                                usage is extremely common at corners where vehicle drivers often misestimate turns, and
                                pedestrians are particularly close to the roadbed waiting to cross. In a few cities,
                                automatically retractable impact-resistant bollards are installed to control the flow of
                                traffic into an intersection. Internet videos of ‘bollard runners’ graphically
                                demonstrate the potency of a low post at stopping cars.