Quick-fit barrier deployed in 60 minutes, battery powered, up to 80 cycles per hour.

The AVS-elli LW-series rapid-deployment vehicle barrier system is a versatile road-closure device designed primarily to provide very fast response to rising risk situations where vehicle control and “stand-off” distances are critical to perimeter security.

This barrier system is designed to be employed either as:
• a ‘stand-alone’ system, or
• as a part of a more substantial constructed vehicle access-control system, such as a “sally-port” entry and exit controller – to be used in times of stress.

The AVS-elli barrier family is designed to be anchored in several ways:

• Fixed temporarily to an in-ground “pop-up” spigot on a pre-prepared light foundation – for regular but temporary risk sites, or
• Fixed permanently to an in-ground fabricated engineered footing – for constant ongoing protection at one site, or
• The ‘Quickfit’ - dropped and assembled in a very short period on unprepared trafficable surfaces using fully surface-mounted momentum-interchange (deadweight) anchors – this product developed for initially for Defence Expeditionary Forces on the move, but lends itself well for activities such as APEC ect.

All of these barrier systems are designed to be lightweight, air and road-transportable, and quickly installed - to provide a significant degree of resistance to a vehicle being used as a weapon in its own right, and to increase blast ‘stand-off’ distance should a vehicle be used to deliver an explosive device. The “Quickfit “ barrier will also provide a degree of, overpressure, thermal and fragment protection for personnel separated from the direct blast line by the anchors.

The LW-series barriers can be optioned as:
• Manually operated, by hand
• Remote mechanical operation (using activation by cable)
• Automatic hydraulic activation kit (using Mains or Battery power)

The typical kit uses the LW3 AVS-elli barrier connected on each side to a bastion deadweight mechanism. Each deadweight is connected to the barrier via purpose-built steel ‘extension plates’ – providing an easily assembled and fully surface-mounted Barrier/Anchor system to deter vehicle intrusion, and resist vehicle impacts.

Two people with equipment (fork lift truck) can easily assemble the ‘Quickfit ’ barrier system in under 1 hour.

The LW3 barrier is laid down upon two dust/noise dampening rubber sheets to decrease noise and provide damping for the extension plates.

Three different methods of deadweight anchoring may be employed either:

• Lightweight Intermediate Bulk Carriers serving as bastions sitting adjacently within one rectangular steel bastion tray, containing durable bladders, which for the users purpose, can be water-filled, providing a deadweight of approximately 1 tonne per IBC – 2 tonnes of Deadweight Anchor each side.
• Teraproof ‘Milibastions’ sitting adjacently within one rectangular bastion tray, which can be filled with sand, or other material readily available on site. (providing a deadweight anchor of approximately 3.2 tonnes per side.)
• Standard “F” type concrete road barriers chained into bastion trays.

The water-filled (or material-filled) bastions are tied down to their bastion tray using ratchet straps and then covered with a purpose-designed Military Grade PVC Cover, made and supplied to AVS-elli by military supplier Saab Barracuda in Sydney. This simple cover is easily positioned, and tied down to the bastion tray using standard tension straps.

The cover material is as supplied to other segments of the A.D.F. can be designed to meet MIL-specs or any colour requirements a customer may have. It should be noted that both Milibastions and IBC bastions will (whilst not designed as blast mitigators) offer an increased level of protection for checkpoint guards as noted above. “F”type road barriers are chained into place.

The portable, fully self-contained hydraulic unit is designed to easily sit on the protected side behind the right-hand bastions (from the approach side), this forces checkpoint operators to be at the side of the Bastion.

If and when a vehicle impacts the barrier, the energy of impact will be absorbed partially within the vehicle, partially by the LW3 barrier, and partially by the drag force and friction created from the deadweight anchors. The degree of movement of the whole assembly has been projected using engineering principles.

Adaptability and flexibility. Please note that either the LW3 (1.4 metre) or the LW4 (2.8 metre) barrier systems can be employed in any of the 3 options mentioned in the Preamble - depending on the risk confronted and the task involved.

The IBC anchors. The IBC units employed by AVS-elli in the demonstration today were selected f rom a range of commercially available units offered by a number of vendors. They were selected because of the great inherent strength of this design with a claimed demonstrated vertical load in excess of 10 tonnes. The inherent strength of the IBC units is exploited in the way they are tied into the bastion carrier tray with fabric load-straps being employed to tie the structure together.

These anchor modules can be fitted with ballistic and or blast resistant tiles to improve their performance under these types of loads. (This is why the covers are loose). The weight of water (at 1 kg per litre) is roughly 60 % of the weight of sand. If sand is put in the bastions in lieu of water there will be an increase in deadweight and therefore a decrease in the theoretical slide distance for the barrier.

Alternative Anchors to Replace IBC units. AVS-elli can supply architectural high strength concrete blocks to replace the IBC units should a customer require a “prettier” answer to the same problem. This may well be required at international conferences or events. The down side is that freight and handling charges rise significantly.

The PVC Covers. The covers are a military grade PVC material sourced through Saab Barracuda in Sydney. The material displayed today is a standard Australian Army interrupted camo pattern. We can can create the covers in any fabric that a customer may require. The covers are envisaged to provide a small measure of confinement ( not factored into slide predictions) to the bastions and the captured water in the event of an impact.

Sallyport. The mode of application of the Quickfit system lends itself to the creation of a simple electrically interlocked “sally-port” type gate on high risk sites by adding a second kit and a sufficient number of IBC units to give an entry chute of a length to accommodate the maximum size vehicle likely to be received on the dock. The method of operation of this type of system is to ensure that the “FoldingBloc” units are interlinked and that at no time can they both be down simultaneously. This prevents the possibility of a vehicle “tailgating” an approved vehicle that has been (or is being) admitted to the protected area. It also allows a vehicle to be quarantined between the two barriers and inspected from behind the protective bastions.