There are different types of bollards depending on where you want to use them. They can be used to direct traffic on the highway or control movement of people and vehicles in restricted areas. Again, during emergencies, removable bollards are used to keep off the public from the scene. Bollards are also used as a decorative feature around buildings to define the perimeter of a site. In the case of vehicle collisions, bollards will help resist the impact. Thus, pedestrians are protected from injuries and property from damage. Following are some types of bollards
Non-crash resistant bollards
Bollards are not only used as protective barriers, but they also warn against impending attacks, direct traffic and add to the exterior aesthetics of a property. They are also used in blocking off alleys, bike trails and such from vehicle access and thus preventing collisions. These types of bollards are also used as visual deterrents, which indicate to passers-by that a certain location has additional security. Thus, potential intruders are stopped from forcibly entering such places. Non-crash bollards are most of the times considered the best choice compared to others. They have a variety of lighting options and therefore work well for decoration. When placed strategically in the intended location, they sound a visual warning and therefore a visual barrier that is easily recognizable.
Crash resistant bollards
These are engineered and well tested for their ability to resist any impact by a vehicle or any strong body. Even if a car or a trailer moves at a high speed, these bollards are able to withstand such impact. Mostly, the government and military installations use these bollards as protection against vehicular terrorist attacks. Anti-ram bollards are common in airports, seaports and other commercial and industrial sites to protect pedestrians and employees from injuries. There are also shallow bollards that are made with a spring steel bollard core, which allows it to flex and absorb energy resulting from high impact. They have a very shallow foundation, which gives it the potential to easily install above existing utility systems. With these, your exterior security system is enhanced.
Both crash and non-crash bollards can be retractable. That means that they can be used and removed as per the need. Whenever you are designing for permanent bollards, it is advisable that you allow for a small quantity of removable and retractable bollards. This ensures that in case you want to do some development or maintenance, you can remove and return.
Fixed bollards are very common when it comes to controlling traffic. However, the trend is changing with many engineers adopting the flexible type for traffic control in the highways. The flexible bollard coils with pressure but is able to return and this makes it easier to manage. It is also important that you consider mixing the different types for easy of management especially in a busy place.
Bollards are arguably the best in traffic control on the highways and around buildings. They help control the movement of pedestrians and drivers.