Abstract: A device for arresting a motor vehicle which is moving on a support surface includes an enclosure with is shaped and dimensioned to receive the motor vehicle. The device is releasably connectable to a helicopter, so that the device can be (1) positioned over the motor vehicle by the helicopter, (2) disconnected from the helicopter, and (3) dropped onto the support surface wherein the enclosure encloses the motor vehicle.

Abstract: A collapsible A-frame (100) for use in a road barrier assembly (300) has an upper support means (152) adapted to support a barrier member (200) of the barrier assembly, and has first and second legs (110, 120) pivotally connected to a lower end of the upper support means. There is a cross member (130) pivotally connected to the first leg (110), and the second leg (120) can secure a free end (220) of the cross member (130) thereto by an interengagable male and female type joint assembly (210, 320). This occurs when the A-frame (100) assumes an expanded portion after the first and second legs (110, 120) have been pivoted apart and the cross member (130) has been pivoted away from the first leg (110).

Abstract: Systems and methods for arresting vehicles or other moving objects are detailed. The systems may be bi-directional, so as to arrest vehicles on either side of a barrier. They additionally may be reset for reuse relatively rapidly following deployment and comprise mechanical controllers for facilitating suitable deformation of the barriers. Modular slotted beams also may be employed to accommodating differing widths and crowns of roadways.

Abstract: A barrier that includes attack resistant pane(s) (see DEFINITIONS section). In this way, a person behind the barrier can be protected when they are outside. More specifically, the person behind the barrier is protected, at least to some extent, from both: (i) vehicular attacks; and (ii) blast (for example, bombs) and/or ballistic (for example, bullet) attacks. Also, the protected person can see what is happening across the barrier because of the attack-resistant pane(s). Also, if the barrier is unanchored then it can be moved from place to place, for example, by heavy equipment, so that the same barrier can be re-deployed at different outdoor locations (or indoor locations) on an as-needed basis. Preferably, the barrier also includes framing pieces that secure the attack-resistant pane(s) to the body of the barrier, with the framing pieces being covered on one side by an attack-resistant material (preferably, hardened steel).

Abstract: An energy absorbing system. The system includes an energy absorber mechanically coupled to a net, a joint mechanically coupled to an anchor, and a support mechanically coupled to the net via a frangible connector. The frangible connector may uncouple the support from the net upon application of at least a threshold force to the frangible connector. The joint may pivot on a horizontal axis and support the energy absorber at a predetermined angle relative to ground level.

Abstract: The object of the invention is a device for preventing the driving of vehicles in the forbidden direction, which is made possible by a physical stopping of vehicles that are driving in the wrong direction, while the traffic signals separately allow a driving in the direction of access to the highway. The device for preventing the driving of vehicles in the forbidden direction has spring elements (1, 10) placed in a housing (2) placed in a channel (2) constructed across the direction of travel, wherein the projecting part (1a, 10a) of the spring element when driving in the right direction will bend and thus allow the vehicle to pass, while when driving in the wrong direction the tires of the vehicle will be punctured, so that further travel of the vehicle in the prohibited direction is not possible.

Abstract: A parking bumper shell that can be easily filled with a heavy form-filling material (such as concrete) to form a parking bumper is provided. The parking bumper shell may be injection molded from durable, brightly-colored, UV- and weather-resistant plastic. Undercuts, such as in the form of a plurality of undercut wings or z-puller pins, may be disposed on the interior of the parking bumper shell's top and side walls to aid in holding the parking bumper shell and the heavy filling material together. The parking bumper shell may also include internally projecting hollow extensions that are adapted to receive anchoring posts. While the parking bumper shell is being filled, it may be placed in a rigid frame which helps the shell to keep its shape during filling. The parking bumper shells are light-weight, nestable, and do not require internal steel rebar reinforcement, thereby greatly reducing transportation costs.

Abstract: An apparatus and a method for disabling a ground engaging traction device of a land vehicle includes at least one penetrator configured to breach the traction device, an articulated strap configured to move between a retracted arrangement and an extended arrangement, an inflatable bladder configured to deploy the articulated strip to the extended arrangement, and a retractor configured to retract the articulated strip to the retracted arrangement. The articulated strip includes a plurality of plates coupled to the penetrators and a plurality of joints, wherein individual joint couples individual adjacent plates.

Abstract: Contention system for lateral impacts from vehicles, of the kind formed from a mixed metal and wooden horizontal continuous rail, comprising two or more wooden logs of equal cross-section, preferably rectangular, fitted with the same metal profile of cross-section preferably in the form of a “sigma” and longitudinally connected together by means of a metal plate, with the rail being supported at regular intervals by metal uprights inserted or secured into the ground, externally faced with a wooden cover consisting of three or more flat wooden strips, the rail being fixed to the posts by means of a metal distancer spacer by way of support, formed from a main piece in the form of an “omega” lying on its side which joins consecutive rails together via their ends and an interior U-piece which incorporates the star-shaped hole for the breakaway attachment between the support and the post, with a metal support plate between the front part of the wooden cover for the post and the central part of the metal support.

Abstract: A vehicle disabling apparatus may include at least one plunger assembly having a plunger and a toggle operable to pivot inside the vehicle tire. The apparatus may include energetic material disposed adjacent the plunger and configured to force the plunger into a vehicle tire. A method of disabling a vehicle having a tire may include using the vehicle's tire to move the plunger and thereby activate the energetic material; and moving the plunger into the tire using gas produced by the energetic material.

Abstract: An assembly for use in a shield includes a protective panel, protective panel securing hardware and an adjustable mount. The protective panel is ballistic-resistant and/or blast resistant. The protective panel securing hardware secures the protective panel to the adjustable mount and to extend in an upwards direction from the adjustable mount. The adjustable mount is structured and sized to be securable on top of shield bases having a plurality of alternative geometries.

Abstract: A shallow mounted fixed vehicle barrier device for prohibiting vehicular access to a facility or area. The shallow mounted fixed vehicle barrier device includes a barrier system having a passive position and a support system adapted to maintain the barrier system in the passive position. In the passive position, the barrier system prevents vehicles from passing by or through to the protected facility or area. The shallow mounted fixed vehicle barrier device always remains in the passive position and, therefore, never allows vehicles access to the secured facility or area, after installation. The barrier system includes a bollard and, optionally, a bollard sleeve. The support system includes a base frame attached to the bollard, such that the base frame is adapted to secure the bollard during vehicular attack. The shallow mounted fixed vehicle barrier device can be installed in a foundation having a depth of less than twelve inches.

Abstract: A vehicle barrier control device for limiting vehicular access to an area. The vehicle barrier control device includes a barrier system having an active position and a passive position and a control system adapted to move the barrier system between the active position and the passive position. In the active position, the barrier system prevents vehicles from passing through. In the passive position, vehicles are permitted to pass through. The barrier system includes a buttress, movable barrier plate, traffic control arm and a traffic indicating light. The control system comprises a traffic arm motor, programmable logic controller, variable frequency drive, and actuator. The barrier system is temporarily bolted to a sub-frame set in concrete. An actuator motor mounted to an actuator reduces the need for typical hydraulic components. Using a variable speed and reversible actuator motor the present invention provides high-speed movements of the barrier plate for emergency conditions.

Abstract: A gate apparatus has a pair of spaced apart base assemblies and a gate assembly. Each base assembly has a base frame with leg assemblies and braces and a receiver attaching to the top of the base frame and having a guide mechanism. The gate assembly has a beam engaging the guide mechanism of at least one of the receivers and wheel assemblies attached to each end the beam.

Abstract: A tire deflation device having an elongated base with a hinge positioned near the middle of the elongated base, a first elongated arm attached to a first end of the elongated base and running perpendicular to the elongated base, a second elongated arm attached to a second end of the elongated base and running perpendicular to the elongated base, a plurality of spikes attached to each of the first and second elongated arms, and a handle connected to the elongated base.

Abstract: The invention relates to a vehicle restraint system provided for delimiting roadways and including guide barriers (1) which are placed next to one another in a detachable manner. Each guide barrier (1) includes a housing-type base body (2) that can be placed upright on the ground and a guide rail (14) arranged above the base body (2). The guide rail (14) and the base body (2) can be coupled together by means of tension rods (19), wherein each tension rod (29) is connected to the guide rail (14) with an upper end (20) and can be tightened at a bottom end (22) in an abutment (23) arranged in the base body (2). The guide rail (14) and the base body (2) are suitably arranged at a vertical distance from one another by spacers (30), with the tension rod (19) extending through the spacers (30).

Abstract: A non-lethal energy absorbing vehicle barrier for decelerating an impacting vehicle includes a first gate member and a second gate member disposed downstream of the first gate member. The first and second gate members are movable from a retracted position in which the first and second gate members are disposed so as not to impede vehicular traffic on a vehicle pathway, to a deployed position in which the first and second gate members are disposed to impede vehicular traffic on the vehicle pathway. The first gate has a height that is lower than a height of the second gate in the deployed position. Both the first and second gate members include at least a pair of deformable energy absorbing members that are deformed in a substantially inboard direction by a deforming member when the first and second gates are deformed from a pre-impact configuration to an impact configuration.

Abstract: A blocking system or blocking body (1) is provided that is composed of at least four means or members (2) that have a common base (3) and in the transport state are pivoted upwards so that the tips (2.1) of all means (2) lie in one plane, wherein the means (2) in the active state are orientated in such a way that at least three tips (2.1) form contact points (9) on a surface (8) and at least the fourth means (2) pointing upwards penetrates one of the wheels when it is run over. This type of crow's foot (blocking body (1)) can be delivered by means of a thrower or by depositing it into the terrain in which the vehicles are situated, and whose continued travel is to be prevented.

Abstract: Barrier elements provide security from terrorist threats by ability to withstand both vehicle collisions and explosive blasts. Each barrier element is prefabricated to include a massive block of durable material, in some embodiments segmented, with at least one tunnel extending at least partially between respective cavities in two opposite sides of the block. Each barrier element also includes at least one beam that is preferably made of steel and extends through one such tunnel. Multiple blocks are positionable slidably on top of the ground side-against-side with their beams coupled longitudinally to one another at least approximately end-to-end. Retainer means can be used to block coupling means from entry into the tunnels. Forces from a vehicle collision or an explosive blast can cause barrier elements to rotate relative to one-another when the couplings between beams hinge or bend as the durable material that interferes with the rotation breaks away.

Abstract: A barrier system and method for providing a barrier system are disclosed. The barrier system and method relate to a vehicle and pedestrian barrier system which can be positioned in vehicle and pedestrian passageways adjacent a protected structure or area to preclude the vehicle or the pedestrian from reaching and engaging the protected structure or area.

Abstract: An improved holding device is disclosed for supporting a traffic beacon comprising a longitudinal extending holding member having a bottom surface for resting on a generally flat surface. The longitudinal extending holding member has opposed inclined sidewalls meeting in a generally planar top surface. A coupling device is defined within the longitudinal extending holding member for securing a traffic beacon to the holding member. A riser is integrally formed with the generally planar top surface of the longitudinal extending holding member for raising the height of the improved holding device.

Abstract: A non-lethal vehicle device provides for the selective, remotely-deployed controlled stop of a targeted vehicle regardless of wheel or undercarriage configuration. The device is comprised of a combination of a remote arm/safe mechanism, a remote deployment controller, spike/snare deployment mechanism(s), a “speed bump” type housing that can protrude (be driven over until deployed) or be submerged, and one or more snares with a plurality of spikes. A combination of sensors may provide independent deployment once armed.

Abstract: A water-ballasted barrier system incorporates a concave reflective design, wherein outer walls of the barrier segment are configured in a concave manner. The concave section is designed to prevent the tire of a vehicle, impacting the barrier, from climbing up the side of the barrier segment, by pocketing the tire in the curved center portion of the barrier wall. Adjacent barrier segments are attached together using an interlocking knuckle design, having a lug pin connection system. In some embodiments, wire rope cable is internally molded into each barrier segment to strengthen the barrier system.

Abstract: An impact attenuator system including a hyperelastic member that comprises an energy absorbing material with a tan ? of not less than about 0.05 to assist rebound control.

Abstract: A barrier includes a housing having a front wall and an opposing back wall each extending between opposing sidewalls. The housing also includes a floor and an interior surface bounding a chamber, the chamber communicating externally through an inlet opening. A first inset projects into the chamber from the front wall so as to form a recessed pocket on the front wall. A second inset projects into the chamber from the back wall so as to form a recessed pocket on the back wall. The first inset and the second inset are connected together within the chamber so that the chamber encircles the connection.

Abstract: A ground stake for deterring driven vehicles consists of an integral, unitary body with an upper section, a lower section, and an elongated intermediate section. The lower section consists of a ground piercing rod member with an anchoring element adapted to be compelled into the ground to maintain the stake in an immobile position within the ground on real property. The upper section provides the appearance of a decorative stake with a pointed upstanding tip, giving the observer the impression that the stake is solid metal which will cause damage to any vehicle driven onto the property. In actuality, both the upper section and intermediate section, which interconnects the upper and lower sections, are made of a bendable, pliable material which, upon impact with the tires of a vehicle, will give way and bend. Thus, the ground stake, by appearing to extend up as a solid metal stake, will deter drivers. Nevertheless, it is actually safe for cars and individuals.

Abstract: An embedded housing system storing cables below the surface in a protected environment, with a moveable surface lid lying flush with the existing surface and following the crown or slope across the travel path. The surface lid includes lid sections extending from the housing with at least one lid section having at least one edge extending from the housing at an angle. The cables are readily raised out of the housing structure to obstruct traffic across the travel path, or lowered into the housing system to allow unobstructed traffic passage. The housing support structure is prefabricated in sections, selectively attached to match the existing crown or slope across the travel path, and then installed below the surface. Surface lid sections remain connected while opening simultaneously across the sloping travel path, using an interlocking mechanism. Rain water is inhibited from entering the housing support structure by the surface lid, but if it seeps inside, it will drain away by gravity.

Abstract: A portable perimeter defense system is provided that is configured for preventing unwanted intrusions by vehicles or other heavy and fast-moving vehicles into a protected area while also providing requisite ballistic resistance capabilities. The defense system includes individual modular barriers that can be readily transported to a point of use and can be secured in place without requiring heavy equipment or power sources, such as electricity. This can be readily achieved with as few as one person. The modular barriers include a front plate configured to provide exceptional ballistic protection in the direction of impact and to provide an impact surface capable of withstanding impact. When circumstances warrant a double row portable perimeter defense system, a bracing system is provided to render parallel rows of barriers cooperative to prevent aft tilting of the impacted forward barriers.

Abstract: A vehicle restraint system is provided, comprised of an easily installable and transportable base having a deployable vehicle retention means contained therein. In particular, a rigid base over which vehicles may drive is provided, having a deployable vehicle retention means, such as a net or flexible panel, disposed in the base. In addition, lockable rollers, deployable plates and tire puncturing devices are disposed in the base, to prevent or resist movement of the vehicle relative to the base. The base is merely laid upon a surface, and requires no mounting thereto. Upon impact with a vehicle, the vehicle is retained on the base, and the forward motion/inertia of the vehicle is depleted via frictional engagement (sliding) of the base over the mounting surface, wherein the base and vehicle come to a controlled stop within a short distance.

Abstract: Increased resistance to displacement of a barrier or barrier sections thereof in response to a lateral force without anchoring or bolting barrier sections together is achieved by providing an attachment arrangement near the top of an end of barrier sections which is capable of carrying a tensile force and developing that tensile force using a tightening bolt/nut arrangement located at deflection stops at lower corners of the barrier sections to develop a compressive force. The barrier sections are thus rigidly attached together such that a lateral force applied to one or more barrier sections is partially transferred to additional attached barrier sections effectively increasing the mass against which the lateral force is applied. The tightening bolt/nut arrangements are retained by and are captive to the respective barrier sections when barrier sections are disassembled from each other.

Abstract: A system and method for a device for releasing a cable of a safety system is disclosed. The system and method disclose various features of the cable system as it applies to a roadway barrier system and other applications in the event that the cables are impacted generally longitudinally proximate the region they are secured to a surface.

Abstract: A system for deploying a vehicle arresting device (1) of the type comprising a net (3) or other flexible substrate intended to lie flat upon the ground with an array of upwardly-directed spikes (4) attached along its leading edge, and which is adapted to arrest a vehicle by penetrating and wrapping around its front tyres and pulling tight under the vehicle to stop further rotation of the wheels. The device is deployed across a road (2) from a folded condition on one side of the road through cables (6) and (7) attached to one side edge and wound in by a winch (5) on the opposite side of the road, while its other side edge is anchored by lanyards (12) and (13) on the first side of the road. The cables and lanyards each extend from the device at divergent oblique angles. The lanyards are themselves anchored to the ground at positions (14) and (16) spaced from the device so that it can self-correct in the fore and aft direction during deployment through arcuate movement of the lanyards about their anchor points.

Abstract: A vehicle arresting device comprises a net intended to be laid flat on the ground in the path of an oncoming vehicle to be arrested. Two rows of barbed spikes are attached to the net along its leading edge. When a vehicle runs over the device the spikes lodge in its front tires and the net is caused to wrap around the front wheels, eventually being pulled tight under the vehicle so that the tension in the net prevents further rotation of the wheels and the vehicle is brought to a stop. The net is manufactured such that in its deployed condition it has sufficient lateral stretch to allow it to become fully wrapped around the front wheels before the tension builds up to a level at which there might otherwise be a risk of the spikes being pulled from the tires.

Abstract: In accordance with the present invention, there is provided is a safety marker with an on-board convection fan for marking areas/hazards to be avoided while concurrently producing a convection effect upon the adjacent, surrounding surfaces so as to enhance evaporation of liquids/moisture thereon. Along these lines, the safety marker will not only mitigate risks by allowing for the marking of an area to be avoided, but also, uniquely, by accelerating the elimination of what is most often the root cause of the risk; wetness on the floor.

Abstract: In order to stop a moving vehicle without injury to occupants, a vehicle barrier is provided having a pair of platforms disposed on opposite sides of a roadway, and a capture net extending across the roadway between the platforms. Each platform has a rotatably mounted spool attached to a different end of the net, and a dual acting extension-compression shock absorber pivotally mounted to the spool, such that when the force or energy of an impacting vehicle on the net is applied to the shock absorbers, via rotation of the spools. Rotation of spools operate the shock absorbers in compression, and if needed, in extension. In railroad crossing application, two of the vehicle barriers are provided on either side of the railroad tracks to prevent vehicles from crossing the railroad tracks.

Abstract: An arrester bed system for a runway area of an airport or airfield comprising: an artificial surface securely install in the area; a base beneath the artificial turf, the base configured to slow a moving aircraft; and soil beneath the base.

Abstract: A plate-mounted bollard which includes an internal impact absorption mechanism that enables the bollard to absorb impact forces greater than conventional plate-mounted bollards. The bollard makes use of a force transfer process that shifts impact forces to areas better able to resiliently absorb the impact without causing damage to the bollard, the impact absorption mechanism, or the ground in which the bollard is installed. The impact absorption mechanism consists of an internal resilient core rod mounted at its proximal end to a base plate which is fixed to the ground. Impact forces are then transferred through an outer shell to the distal or upper end of the internal resilient core. With energy from the impact force being distributed along the maximum length of the resilient core rod, the rod flexes and the full length of the rod is utilized to absorb the impact energy.

Abstract: A safety trailer has semi-tractor hitches at both ends and a safety wall that is fixed to one side of the trailer. That side, however, can be changed to the right or left side of the road, depending on the end to which the truck attaches. A caboose can be attached at the end of the trailer opposite the tractor to provide additional lighting and impact protection. Optionally, the trailer can be equipped with overhead protection, lighting, ventilation, onboard hydraulics, compressors, generators and other equipment, as well as related fuel, water, storage and restroom facilities and other amenities.

Abstract: The present invention relates to a device (AB 1 to AB7), designed to be embedded in the pavement of a road for halting and/or preventing the motor vehicle traffic in an opposite direction to the appropriated or allowed travelling direction especially in one-way roads accessing highways, being substantially imperceptible for a vehicle travelling in the appropriated travelling direction or allowed by the traffic signalling, characterised in that the device (AB1 to AB7), is formed by a adequate drained box (A) to be embedded in the pavement of a roadway and by a bank of mechanisms (B1 to B7), that it is mounted inside the box (A), inside said bank of mechanisms (B 1 to B7) being defined cells formed by several vertical walls, and end walls, all said walls being arranged parallel to each other and joined together by screwed rods extending through the end walls, said walls extending in the same direction of the road axis, said vertical walls and said end walls serving as support for the several common horizontal s

Abstract: Anti-ram systems according to embodiments of the invention comprise at least one bollard section comprising a base of limited height and a plurality of spaced bollards extending upwardly from the base. An anti-ram system according to embodiments of the invention may be erected or installed on a paved surface such as asphalt, concrete, paver stones, etc., or on an unpaved surface such as soil, and need not be partially of fully buried, and yet can qualify for Department of State crash ratings previously assigned to buried bollard systems. Disclosed anti-ram system also comprise a plurality of bollard sections and one or more connectors for interconnecting two or more of the bollard sections, and may also include an anchor or anchor system engaging at least each end of a bollard section not connected to another bollard section. The bollard sections may be filled with ballast and high friction structure may be attached to the bottom of the bollard sections to resist sliding after impact.

Abstract: An immobilization device and method of restraining vehicles, persons and animals uses tendrils attached to various devices to engage the target. The immobilization device, system and method includes a housing containing launchable tendrils that are launched from the housing by a propellant. The tendrils may be attached to straps or other elements carried by the immobilization device. The tendrils will engage the target and restrain it if it is a vehicle such as a car, truck, boat, submarine, or like vehicle. In stopping a person or animal the tendrils will deliver a marking package, a shocking package or a snare package to mark, shock or snare the target. Straps may be pulled off the housing leaving the housing near the point of deployment.

Abstract: The present invention relates to a a security bollard and, in particular, to a security bollard designed to be used as a protective measure to be placed in front of shop fronts and Automatic Teller Machines (ATMs) that may be subjected to ramming by vehicles. The bollard includes a first upright hollow member having an outer wall defining a chamber, and a plurality of vertical longitudinal jamming rods disposed inside the chamber. Each jamming rod has associated therewith a biasing means for biasing the members in a longitudinal direction so as to act like a disk brake on cutting implements attempting to cut through the jamming rods, and to also close the gap created by the cut should the cutting implement be retrieved and cutting attempted again.

Abstract: Detailed are systems and techniques for protecting structures from vehicular attack. The systems incorporate deformable materials sufficient to disable or otherwise inhibit certain vehicular traffic yet support weights and weight distributions typically associated with pedestrian or other non-threat traffic. Bodies of deformable materials further may include rigid structures or vehicle-immobilization devices.

Abstract: An energy absorbing system with one or more energy absorbing assemblies is provided to reduce or eliminate severity of a collision between a moving vehicle and a roadside hazard. The energy absorbing system may be installed adjacent various roadside hazards or may be installed on highway service equipment. One end of the system may face oncoming traffic. A collision by a motor vehicle with a sled assembly may result in shredding or rupturing of portions of an energy absorbing element to dissipate energy from the vehicle collision.

Abstract: A water-ballasted barrier system incorporates a concave reflective design, wherein outer walls of the barrier segment are configured in a concave manner. The concave section is designed to prevent the tire of a vehicle, impacting the barrier, from climbing up the side of the barrier segment, by pocketing the tire in the curved center portion of the barrier wall. Adjacent barrier segments are attached together using an interlocking knuckle design, having a lug pin connection system. In some embodiments, wire rope cable is internally molded into each barrier segment to strengthen the barrier system.

Abstract: A barrier comprising a body member. The body member has a first side, a second side, a front side, a rear side, and one or more cavities within the body member. The body member further has a first overlap portion and a second overlap portion. The first overlap portion extends from the first side adjacent to the front side and spaced apart from the rear side. The second overlap portion extends from the second side adjacent to the rear side and spaced apart from the second side. The second overlap portion is shaped to mate in an overlapping manner with the first overlap portion of an adjacent body member. A barrier wall comprising two or more barriers is also disclosed.

Abstract: An energy absorbing system. The energy absorbing system includes a supporting member, a barrier pivotable between a first angular position and a second angular position, where the barrier becomes mechanically coupled to the supporting member when arranged at a predetermined angular position, and an energy absorber mechanically coupled to the supporting member, where the energy absorber absorbs energy when the supporting member travels from a first position to a second position.

Abstract: A vehicle arresting device comprises a net intended to be laid flat on the ground in the path of an oncoming vehicle to be arrested. Two rows of barbed spikes are attached to the net along its leading edge. When a vehicle runs over the device the spikes lodge in its front tyres and the net is caused to wrap around the front wheels, eventually being pulled tight under the vehicle so that the tension in the net prevents further rotation of the wheels and the vehicle is brought to a stop. The net is manufactured such that in its deployed condition it has sufficient lateral stretch to allow it to become fully wrapped around the front wheels before the tension builds up to a level at which there might otherwise be a risk of the spikes being pulled from the tyres.

Abstract: A vehicle barrier system. The vehicle barrier system includes a base, an arm hingably mechanically coupled to the base, a raising/lowering mechanism in mechanical communication with the arm, and a cable supported by the arm, the cable mechanically coupled to first and second anchors placed on opposite sides of an area through which a vehicle may pass, and the raising/lowering mechanism moves the arm and the cable between a first position and a second position.

Abstract: Disclosed is a road barricade for creating an entry barrier or an obstacle. The road barricade includes an elongated body portion, a pair of leg assemblies, a pair of connector assemblies and a release mechanism. The pair of leg assemblies is configured to support the elongated body portion over a ground surface. The pair of connector assemblies is configured to pivotally connect a leg assembly of the pair of leg assemblies to the elongated body portion. The release mechanism is capable of actuating a movement of the pair of leg assemblies for assuming an un-collapsed position from a collapsed position.