What Are Passive And Active Force Protection Barriers?

Posted by Michelle Goodwin on Tue, Mar 29, 2016

Active Vehicle Barriers

These create a secure environment by blocking a path or route but open or move to allow passage when necessary. Barriers are considered active when they can be moved to allow access, but keeps unwelcome visitors outside.

Vehicle access control points or entry control points where credentials and/or vehicle contents are checked might require installation of an active vehicle barrier (AVB) at the end of the access corridor.

Drop arm barriers  use a beam extending across the road. Usually the beam, or arm, swings vertically to allow the vehicle to pass, but horizontal swinging versions and telescoping beams are also available.  

Retractable Bollards are another common type of AVB. They are frequently used where they are normally in an up position and only need to be operated infrequently.

Passive Traffic Barriers

Temporary Fences and Barricades keep the job site or outdoor event enclosed by softly directing foot and vehicle traffic to a designated zone that can be broken down and set up quickly at any location at any point as needed. Typically construction sites use tall movable chain link fences to protect the public from and treacherous sections of a project. 

Swing gates designs require a massive steel counterweight (many thousands of pounds) to balance the beam, and a large capacity hydraulic system to move the beam.

Upswing barrier gates  can be used for a variety of commercial applications, including business parking lots, apartments, and traffic control.

Wedge barriers get their name because of their wedge shape when viewed from the side. They are also sometimes called plate barriers because the most common type uses a steel plate angled toward the approaching vehicle. This can be achieved by placing Jersey wall barriers in a way that creates a maze for the vehicle to maneuver.

This effectively forces the vehicle to slow down while permitting clearance.

Passive barriers are permanent obstacles that protect a building or property from vehicle interference.

Passive barriers have no moving parts; their effectiveness relies on their ability to absorb energy and transmit it to their foundations. 

Concrete walls if properly designed and constructed, can certainly perform well as a barrier. Key elements in the effectiveness of such walls are their height, thickness, reinforcement, and foundation depth.

Terrain can be used as an effective vehicle barrier. It is difficult for certain types of vehicles to pass or traverse ditches that have sufficient width, depth and overly steep side slopes. Berms also can be effective if properly configured.

Bollards are short, vertical posts used to protect potentially vulnerable structures or objects from damage by moving vehicles.

Designed for versatility, these posts range in size from 24” to 42”in height, and come in variable diameters to meet a location’s specific security requirements.

Bollards can be used to maintain a more natural look, while providing crash-rated security. 


Security provided by barriers is available with many different degrees of safety options.Whether the solution is permanent or somewhat temporary, depends on a facility's unique needs as well as various external factors.  Safety access, value of the secured property, and the risk of intrusion associated within the enclosed area are all essential questions to arriving at your barrier solution.

Barrier systems are built to specific standards set forth by the Department of State (DOS) and meet three levels of security K4, K8, and K12.  

Depending on the facility, the level of protection can be increased or decreased by the use of these barrier enclosures.


Active Force Protection Barriers are used to create ATFP entry systems and gates.

The appropriate type of barrier depends on a number of factors. In this article we consult some of the most common barrier security applications.Security provided by barriers is available with many different degrees of safety options.Whether the solution is permanent or somewhat temporary, depends on a facility's unique needs as well as various external factors.  


Safety access, value of the secured property, and the risk of intrusion associated within the enclosed area are all essential questions to arriving at your barrier solution.

Barrier systems are built to specific standards set forth by the Department of State (DOS) and meet three levels of security K4, K8, and K12.  

Depending on the facility, the level of protection can be increased or decreased by the use of these barrier enclosures.





Topics: Bollards, ATFP, High Security Fence, Commercial Fence, Fence, fence law, high security, access gates, barriers, crowd control, pedestrian traffic

What Is Anti Terrorism Force Protection or ATFP Perimeter Security?

Posted by Michelle Goodwin on Sat, Jan 30, 2016


k rated fence


The United States Marines defines Antiterrorism/Force Protection as a “security program designed to protect military personnel, civilian employees, family members, facilities, and equipment in all locations and situations from the calculated use of violence or threat of violence to inculcate fear, intended to coerce or to intimidate governments or societies in the pursuit of goals that are generally political, religious or ideological.”

AT/FP perimeter security systems are generally used when the highest level of protection is needed. They are used around government buildings like the Pentagon, prisons, jails, nuclear power plants, Federal Reserve banks and other high-security buildings.  ATFP systems are designed to reduce the vulnerability of and to protect lives, facilities, equipment and information. In fencing, Anti-Terrorism & Force Protection refers to how much force a structure can withstand before becoming compromised by an attacker.

The following ratings have been used to issue contracts for Crash Rated Fences since 2000:

  • K4 rating is for a vehicle traveling 30 mph

  • K8 rating is for a vehicle traveling 40 mph

  • K12 rating is for a vehicle traveling 50 mph

K-Ratings are levels of barrier protection as determined by the Department of State (DoS). A 'K' Rating is also known as a Crash Test Certification. K Ratings are given to a fence, bollard, gate, or other barrier to indicate how effective that barrier is at protecting what it is guarding by measuring the barrier's stopping power in relation to the speed and weight to an incoming vehicle. The standard unit of measurement is based on a 15,000 lb. (6810 kg.) gross weight vehicle impacting a barrier perpendicularly.

In order to be DOS certified, the barrier must not bend beyond 39 inches past the preventative impact boundary of the barrier when penetrated by a vehicle.


What kind of wrought-iron, steel, or aluminum ornamental type of Fence is ATFP Compliant? Steel fences are the Anti-Terrorism/Force Protection standard for high-security government buildings; but basically any commercial or residential fence can be made ATFP compliant by installing cable or beam reinforcements.

Steel cables are cemented into the ground and wrung along the accompanying fence or gate. Bollards are short and thick (iron or steel) metal posts set at even intervals. They are often times used to control traffic, but bollards can also be used to make certain fencing ATFP compliant.Reinforcement measures and ornamental fences can make AT/FP fence or gate requirements very expensive.

Part of the United States Policy on Terrorism dictates that all lawful measures to prevent [terrorism] acts and bring to justice those who commit them will be taken. Therefore, while Anti-Terrorism Force Protection fencing systems may be costly, they are often necessary.

The James River Water Treatment pump in Shockoe Bottom Richmond is enclosed by 12 ft. curved spiked picket black steel Black, steel ATFP Compliant Security Fence at US Naval Base in July 2015.


Topics: ATFP, Government Fence, Perimeter Security, High Security Fence, Commercial Fence, Maximum Security Fence, spiked picket fence


Posted by Michelle Goodwin on Sat, Oct 31, 2015

It's Halloween 2016: So stake your territory, wipe the goo guts of your notepad, and find a good hiding spot­­. Shockingly, the perimeter security fencing on The WalkingDead is hardly accurate. Here's why:

A huge part of what makes high-security fencing so desirable that is its ability to intimidate on the outside and work even harder than it looks. High-security chain link fence enclosures are engineered to withstand unforeseen disturbances of the natural, human and sub-human variety.

Contrary to the show, High-security Chain link (with or without barb wire) will not buckle under tension. It’s also nearly impossible to cut through. The chain link is fixed to the steel posts by high grade welded wire ties that prevent disruption between the steel posts and the chain link.  Nor will It waiver or warp when hit by a truck at up to 35 mph. Even 700 slow and rapidly decaying zombies wouldn’t be able to penetrate a prison or other restricted access facilities by simultaneously pulling on a solid sheet of no climb mesh chain link.

High-Security fencing also uses steel beams and posts reinforced from underground with concrete. Steel posts are then strategically placed a decided number of feet apart making intrusion virtually impossible.

In our over 20 years of fence construction, we’ve handled more zombie infestations than we can count. Should your Property or Facility come face to fence with the zombie apocalypse, here’s some High-Security Fence Solutions that won’t leave you hanging on by a thread. (or tendon).

 click on the images below.

gates and high security restricted access tiger teeth bab wire high security razor and tape make a nice addition to any high security fence structure. designmaster welded wire security fencing is a chainlink and steel alternative that prevents climbing

Topics: ATFP, chain link, happy halloween, high security, zombie prevention

What Are The Ornamental Fence Applications?

Posted by Dawn Lowndes on Tue, Apr 16, 2013

Ornamental Fencepool fence

Ornamental, or decorative fences add style and privacy to your backyard or garden. Ornate fencing is strong enough to keep pets and kids in and unwanted predators out with the added benefit of aesthetic appeal. This versatile and durable form of fencing is more expensive than wood fencing but looks refined and beautiful. It can even be customized to any surrounding and has more affordable options when considering design and material.


There are many types of Ornamental Fence

Ornamental fencing will satisfy just about any fencing need. A simplistic design can be made ATFP-compliant (Anti Terrorism Force Protection) in a maximum security or commercial/industrial setting. Likewise, ornate and decorative designs are beautiful in a backyard or garden setting and a short and simple design can be made pool-code compliant for any residential or commercial pool fence.

atfp fence

Wrought iron ornamental fence, like picket fence, is made of several vertical posts set into the ground and attached by two horizontal slats. The bottom slat is usually a few inches from the ground, but on hard surfaces like concrete or pool decks, it can sit right on the ground. Ornamental fencing stands 3 feet to 8 feet tall. If you want an ornamental-fence over 6 feet tall, you need to visit your city permit office for a permit. Like picket-fence and chain-link fence, wrought iron ornamental fencing is does not offer much privacy. Ornamental wrought-iron fencing can be installed on top of brick wall or to top off stone walls as well for added flair and decoration. Ornate fence detailing looks great and comes in a myriad of styles to match your home, garden, or surroundings.

backyard fence Fences help to ensure the security of your business, your home and your pool. Fences keep unwanted visitors and animals out of your specified area.  Fence also confine things.. your children can wander freely or your pets can be leash free. The final ‘best fence choice’ for you will be most productively informed by an onsite consultation with a fence professional for a complete understanding of your needs.


Topics: ATFP, Residential Fence, Ornamental Aluminum, Commercial Fence, Aluminum Fence

Who Really Uses High Security Access Control?

Posted by Dawn Lowndes on Thu, Apr 04, 2013

Access Control / Military Science of Fortification: 

Wire Obstacles are used to defend high-security buildings like government buildings. Walls and fences are more difficult to climb if a wire deterrent topping is applied.  They typically adorn the top of strong chain link fences, steel pickets, or stone walls.  At Buckingham Palace, they adorn the tops of high stone and brick walls. If someone tries to jump the fence, there is almost a 100% chance that they will get caught in the security wiring and injure themselves. Wire deterrents are meant to reinforce perimeter security and to slow down or stop an attacker. Barbed wire, barbed tape, and concertina wire are the three main mechanisms used in wire obstacles. Anti-climb fence spikes are also used at times for the same purpose.

Barbed Wire

Barbed wiring are steel ropes with sharp points or 'barbs'. Razor barbed wire is used in high security settings. The hostile appearance of barbed wire is sometimes enough to keep intruders at bay. However, wire cutters can cut through barbed wire and attackers are sometimes prepared to evade barbed wiring. 

Barbed Tape

Barbed tape, or razor wire, is different from barbed wire. Razor wiring looks like sharp razor blades built into a thin steel rope. Barbed wiring  looks like several small coils of sharp steel wrapped around a thin steel rope. Razor wire is sharper than barbed wire, but not as sharp as actual razor blades. Barbed tape is harder to circumvent than barbed wire, and thus is a more effective fortification mechanism.

Concertina Wire

Concertina Wire, also known as Dannert Wire, is large circular coils made out of thin ropes of barbed wire. They are coiled in conjunction with steel pickets or steaks. Constantine wiring can be set up quickly in a war setting, or are permanent fixtures commonly found along prison walls.

Factory made and used since World War I, Concertina wiring in a staple in modern fortification science.

 Anti Climb Fence Spikes

Security fence spikes are various types of systems constructed with a thick horizontal steel pole completely covered with very long and sharp angled steel spikes. They are designed to increase levels of security against intrusion, terrorism, vandalism, and to protect high-security buildings. Wire cutters cannot cut though this type of fencing.


SOME Security Breaches at Buckingham Palace:  [From dailymail.co.uk]

:: The most serious breach came in March 1982 when Michael Fagan broke into the Queen's bedroom at the palace. She woke to find him sitting on her bed.

:: In 1992, an intruder walked into St James's Palace and downed a whisky in Princess Alexandra's private apartment.

:: In 1995, student John Gillard rammed the palace gates in his car at 50mph, tearing one off its hinges.

:: In 2003, an undercover reporter from the Daily Mirror got a job as a footman at the palace.

:: The same year, a major investigation was launched after "comedy terrorist" Aaron Barschak gatecrashed Prince William's 21st birthday party at Windsor Castle. Wearing a dress, beard and sunglasses he climbed on stage as the prince addressed the crowd, and kissed him on both cheeks.


Topics: Razor Tape, Razor Wire, ATFP, Government Fence, Perimeter Security, High Security Fence

Get Free Widget

Recent Posts