Abstract: A barrier system includes a plurality of elongated barriers each having longitudinally spaced ends, each configured with a connector having a pair of laterally spaced openings. The barriers are arranged in an end-to-end configuration, wherein at least two adjacent barriers are arranged with both of the pairs of openings of adjacent connectors being aligned. In one embodiment, at least two other adjacent barriers may be arranged with only one of the openings in each pair of adjacent connectors being aligned. A barrier and methods of assembling a barrier system are also provided.

Abstract: The invention relates to a security barrier apparatus (10, 70, 100) comprising a support (12) having at least three upright posts (14, 16, 18, 72) thereon. Two of the posts (14, 18) being fixed to the support (12) and at least one post (16, 72) being translatably movable relative to the two fixed posts (14, 18). The two fixed posts (14, 18) being spaced apart from one another and comprise a first plane (19) therebetween. The movable post (16, 72) being mounted to a slide device (24) of the support (12) for providing said translatable movement. The slide device (24) to operate the apparatus (10, 70) between an open position and a closed position such that in the closed position the movable post (16, 72) is between the fixed posts (14, 18) for inhibiting the passage of a vehicle, and in the open position the movable post (16, 72) is out of alignment with the first plane (19) and adjacent to one of the fixed posts (14, 18) for allowing the passage of a vehicle therebetween.

Abstract: Compact, readily maneuverable apparatus for picking up and laterally transferring roadway barrier modules includes a vehicle for moving along a roadway barrier and elongated conveyors located at the sides of the vehicle, connected to the vehicle and pivotal between operative and inoperative positions.

Abstract: Disclosed in a safety crash barrier comprising an elongated base portion and a plurality of barrier elements movably coupled in a resting state thereof to and along the base potion, the plurality of barrier elements are configured to flexibly or elastically change into a displaced state in which at least some of said barrier elements contacted by a colliding vehicle are caused to move and absorb impact energy imparted by the vehicle so as to stop movement of the vehicle or deflect it back to its lane, to thereby reduce or prevent damages to the vehicle and/or passengers injuries. In some embodiments of the present invention a structure of a plurality of barrier modules is slidably placed on top of the base portion, the plurality of barrier modules are placed one on top the other and configured to horizontally slide one relative the other in response to impact of a colliding vehicle contacting the barrier.

Abstract: A tire deflation device includes a support rod disposed longitudinally within a housing, a plurality of T-shaped positioners spaced along the length of the support rod, a pair of spikes attached to each of the T-shaped positioners, each spike of the pair arranged in an opposite direction to the other, and a plurality of filler portions disposed between each of the pair of spikes. The housing includes a main housing portion, a first end portion and a second end portion. The main housing portion has three lateral sides. The positioners position the pairs of the spikes such that for every three pairs of the spikes, the first is arranged substantially parallel to the first lateral side, the second is arranged substantially parallel to the second lateral side, and the third is arranged substantially parallel to the third lateral side, wherein the pairs of spikes are spaced apart.

Abstract: The present invention provides a roadway barrier or guard rail system which has a post (12) which passes through the carriage (20) with the carriage (20) being free to move up along the post (12). The carriage (20) is prevented from moving down the post (12) by means of a stop or restraint (12.60,12.50,12.40,12.30) which is separate from and underneath the carriage (20) and which the carriage (20) abuts, with the stop or restraint (12.60,12.50,12.40,12.30) being located on the post (12). The carriage (20) is not otherwise restrained from moving up the post except by the curved channels through the carriage (20) which engage the extremities of the post, and the friction this may produce.

Abstract: The present invention relates to a roadway crash barrier device, which roadway crash barrier device (1) is capable of absorbing energy from a moving vehicle and contributes to the deceleration of the vehicle when hit, and which comprises shock-absorbing elements (10), constituted by tires, having elastic and shock-absorbing properties and being linked to a friction mat (2), having an extension substantially parallel to the support surface, wherein the tires (10) are disposed along a horizontal, axis, extending along a forward edge of said friction mat (2), and that the tires' (10) traction surface constitutes a friction surface (50) contacting the support surface.

Abstract: A barrier type bollard includes: at least two blocks 10, 20, the block 10 being defined between two faces 11, 12 defining a wedge having an edge 13 and a dihedral angle ? of a value of less than ninety degrees, the face 12 being arranged as a sliding face 12?, the second block 20 having a sliding face 22? substantially complementary to the sliding face 12?, the two blocks 10, 20 being mounted in such a manner that their sliding faces 12? and 22? rest one on the other; an oblong element 30 of longitudinal axis 31 projecting from the face 11; and damper elements 40 for damping the sliding movement of the two blocks one on the other, the damper elements 40 being interposed between the two blocks. The bollard is applicable to impact-absorbing barriers against all kinds of body, and particularly but not exclusively, against vehicles.

Abstract: In one embodiment, 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: A road barrier energy absorber system, comprising: an energy absorber unit comprising outer walls with a stiffening element located between the outer walls; wherein the energy absorber unit has a size and shape to be located on at least one side of a road barrier; and wherein upon an impact, the energy absorber unit will absorb, e.g., up to 300 kJ of energy.

Abstract: A parking post capable of assuming retracted and protracted conformations includes a post moiety including an essentially elongated hollow body and a locking mechanism, adapted to secure the post in the protracted conformation. The parking post includes a pedestal moiety, including top and bottom frames, a housing connected to the top frame, at least two pulleys adapted to receive a string, at least two plummets vertically translatable within the pedestal moiety, the collective weight of which somewhat exceeds the weight of the post moiety. Strings are threaded onto the pulleys and interconnect the plummets with the jogs on the post moiety. An actuation mechanism is used to secure the parking post in the retracted and protracted conformations.

Abstract: The present disclosure relates to a system including an anchor configured to be disposed within a foundation, wherein an upper side of the anchor is configured to be exposed at a surface of the foundation and a wedge-style anti-ram security barrier configured to mechanically couple to the anchor and mount to the surface of the foundation.

Abstract: Disclosed herein are embodiments of a roadside barrier segment to sit on top of a retaining wall to provide impact resistance to vehicular traffic. Concrete traffic barriers are pre-cast in a controlled manufacturing environment then transported as a modular precast concrete segment to the jobsite and installed interlocking directly on top of an earth retaining wall. The precast concrete segment is designed to have a counterweight from soil backfill on a stem of the precast segment that resists overturning pressures from vehicle impact on the traffic barrier segment that extends above the roadway surface. The stem may be triangular in shape to capture more of the backfill soil. A vertical node may be placed on one side of the segment and a receiving channel on the opposite side of the segment to allow the interaction of adjacent segments to share impact loads from motor vehicles.

Abstract: In an embodiment, a road barrier energy absorption unit can comprise: a vehicle crush section configured to absorb impact energy when impacted with greater than or equal to 5 kN force; a post channel configured to receive a road barrier post; and a guardrail attachment. The energy absorption unit can be disposed over the post and a guardrail can attach to the energy absorption unit. In an embodiment, a road barrier energy absorber system comprises: posts; road barrier energy absorption unit; and a guardrail extending between the energy absorber units. Each post is disposed in one of the energy absorber units. The energy absorber units comprise a vehicle crush section configured to absorb impact energy when impacted with greater than or equal to 5 kN force. In an embodiment, a guardrail can comprise: an outer wall and stiffening elements, wherein the guardrail comprises a plastic.

Abstract: The invention relates to a bay loading safety device including: —an articulated platform (14), whose level can be altered to adapt to the differences in height between a lorry trailer (10) and a loading bay (12), —a door (15) for shutting off access from (13) a building (11) opening onto the bay (12), —a set of buffers (16a, 16b) fixed on either side of the platform (14) to provide protection for the bay (12) when the lorry trailer (10) comes alongside the said bay (12), characterized in that it comprises, —a sensor (31) able to monitor a zone (34), called the crush zone, —a sensor (36) able to determine the distance of the lorry (10) from the bay (12), —an obstacle (35) that can be retracted during the travel of a lorry (10), so as to prevent it from coming alongside the bay (12) depending on whether the whole or part of a fixed or mobile object (17) situated in that zone (34) is present and on the distance of the lorry (10) from the bay (12).

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 collapsible barricade apparatus enables users to selectively barricade space for preventing vehicular traffic to pass therethrough. The barricade apparatus comprises an A-shaped member, a support assembly, and a series of anchor assemblies. The A-shaped member comprises laterally opposed upright sections and inwardly extending, coaxial A-crossbar portions. The A-crossbar portions each comprise an inward terminus. The support assembly comprises two T-shaped sections, one upper and one lower. The T-shaped sections each comprise a shaft end and a T-crossbar end. The shaft ends of the upper and lower section being telescopically cooperable with one another. The T-crossbar end of the upper section is cooperable with the inward termini for coaxially aligning and rotatably connecting the upper section to the inwardly extending A-crossbar portions. The anchor assemblies rotatably anchor the feet of the A-shaped member and the lower section of the support assembly to a primary support surface.

Abstract: A telescoping bollard assembly is provided. The bollard assembly includes a threaded shaft and a shaft housing structure containing a lubricant source in fluid communication with the shaft threads. A lubricant is positioned in the lubricant source in contact with the threaded portion of the shaft. A funnel portion is in fluid communication with the lubricant source, and a shaft guide portion is in fluid communication with the funnel portion. A portion of the shaft projects to an exterior of the housing through a shaft exit portion. The shaft exit portion is in fluid communication with the shaft guide portion and defines a flow path for the lubricant to the lubricant source. Rotation of the shaft urges lubricant from the lubricant source sequentially into the funnel portion, the shaft guide portion, and the shaft exit portion, whereby the lubricant is returned to the lubricant source.

Abstract: A vehicle barrier fence for arresting an impacting vehicle of substantial mass within a selected distance of the fence. The fence having, in part: a retaining structure, at least one cable having a first end comprising a cable terminator, a post having an orifice defined there through sized to receive the cable terminator into the post, and a cable retainer for retaining the cable terminator within the post.

Abstract: A water-ballasted molded plastic barrier system incorporates barrier segments wherein each segment employs a sawtooth reflective design, designed to prevent the tire of a vehicle, impacting the barrier, from climbing up the side of the barrier segment. Adjacent barrier segments are attached together using an interlocking knuckle design, having a lug pin connection system. Wire rope cable assemblies are internally molded into each barrier segment to create an impenetrable cable fence. The wire rope cable assemblies include steel bushings which are molded into the interlocking knuckles to further strengthen the barrier system.

Abstract: A vehicle tire deflation device includes a housing structure, a core structure, a plurality of spikes, a first end cap and a second end cap. The housing structure includes a first end and a second end. The core structure resides within the housing structure. The plurality of spikes is maintained by the core structure and positioned in a predetermined orientation. The predetermined orientation positions the spikes to penetrate a tire when a vehicle travels over the vehicle tire deflation device. Each end cap selectively attaches to the respective ends of the housing structure. Each end cap defines an opening and comprises an outer wall. Each of the openings communicates with the interior of the device so as to permit air to pass from the interior to the exterior of the device. Methods of using a vehicle tire deflation device are also described.

Abstract: The present invention is directed to differing embodiments of safety trailers, which have first and second platforms and a safety wall positioned therebetween. The platforms and safety wall define an area protected from vehicular incursions.

Abstract: An end treatment array for crash attenuation includes a transition barrier module formed of side walls, end walls, a top wall, and a bottom wall, wherein the module walls together define an enclosed interior space. The end treatment array further includes a containment impact sled having an axially extending frame. The frame has a width sufficient to contain the transition barrier module within the frame when in an assembled configuration, and has an axial length which is at least one-half the length of the transition barrier module. The frame defines an interior volume, the purpose of which is to contain a substantial portion of the transition barrier module in the assembled configuration, and to contain debris caused by destruction of the plastic barrier modules in a vehicular impact. The containment impact sled is attached to the transition barrier module.

Abstract: A system and method for temporarily hindering the ability of a vehicle to be driven. A locking assembly is provided that has arms and a trigger release. At least one spring element is provided for biasing the arms into a locked configuration. The arms are cocked into the open configuration against the bias of the spring element. When the trigger release is activated, the arms automatically spring back to the locked configuration. An elongated application pole is provided that is used to propel the locking assembly a wheel of the vehicle. The contact activates the trigger release and causes the arms to move into the locked configuration and mechanically engage the wheel. Once the locking assembly is locked onto the wheel, the wheel is inhibited from turning and the vehicle becomes disabled.

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/membrane deployment mechanism(s), a “speed bump” type housing that can protrude (be driven over until deployed) or be submerged, and one or more membranes with a plurality of spikes. A combination of sensors may provide independent deployment once armed.

Abstract: A terminal post for a barrier includes an upright portion having an aperture positioned, so that in use: the aperture is located in a region of the upright portion above a ground engaging portion of the upright portion; and wherein located on one side of the aperture is a transverse reinforcing member which includes a slot for receiving a cable. At least one groove, or pair of notches is provided located beneath the aperture, and form(s) a predetermined fail line, along which the post will deform, upon receiving a substantially inline impact, which causes the transverse member to move to release the cable, and wherein the aperture is dimensioned to allow the terminal end of the cable formally retained by the slot to pass therethrough.

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: Disclosed herein are various embodiments of systems related to modular earth retaining wall systems. In one embodiment, among others, a precast retaining wall block configured for assembly into a retaining wall includes a front face portion, a web portion extending outwardly from a rear surface of the front face portion, a rear panel portion, and a geogrid material wrapped around at least a portion of the rear panel portion and extending outwardly from the rear panel portion.

Abstract: A crash barrier system is provided that generally includes a hydraulic actuator driven piston operably connected to a hydraulic circuit and the crash barrier. In general, the hydraulic circuit includes a normal-UP and normal-DOWN section, an emergency-UP section, and an overpressure relief sub-system. In order to automatically provide corrective action in the event of an overpressure condition, the overpressure relief sub-system includes an external pressure relief valve that is connected to the hydraulic circuit. Upon occurrence of condition that causes the hydraulic fluid pressure to exceed a predetermined value, hydraulic fluid is released through the pressure relief valve to maintain the pressure at or below the predetermined value.

Abstract: A bollard apparatus comprising an outer bollard member (3) comprising a bore, an inner bollard member (5) at least a part of which is located within said bore and is moveable along the bore from a retracted state in which at least some of the inner bollard member is located within the bore to an extended state in which less of the inner bollard member is located within the bore. At least one urging member (19) is arranged to exert an urging force upon the inner bollard member to urge the inner bollard member towards the extended state. A lifting apparatus (12) is coupled to the inner bollard member and operable to exert a lifting force thereupon sufficient to lift the inner bollard to the extended state when also subject to the urging force.

Abstract: In one embodiment, 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: A barrier apparatus (1) comprising a first support means (2a) and a separate second support means (2b), a flexible coupling means (20) attached to the first support means defining a through-opening (21A), a bridging member (4) supporting said flexible coupling means, wherein the bridging member is attached movably to the first support means to be movable to and from a position which places said through-opening in alignment with the second support means, and the second support means includes an obstruction part (11) adapted to extend through said through-opening when said through-opening is placed in said alignment with the second support means thereby to obstruct removal of said through-opening from said alignment with the second support means to provide a barrier comprising said flexible coupling means which extends between the first support means and the second support means.

Abstract: An impact absorption apparatus includes a force transfer member including a base and a sidewall extending from the base, the base including an opening, a shock absorber disposed within the force transfer member and resting on the base, the shock absorber including a through hole, a plate disposed within the force transfer member and resting on the shock absorber, the plate including a through hole, and a fastener that extends through the base opening, the shock absorber through hole, and the plate through hole, the fastener including an end protruding from the base opening, the fastener end configured to secure the force transfer member to a support surface. The force transfer member is configured so that when an impact force is applied to the force transfer member, the force is transferred from force transfer member to the shock absorber.

Abstract: Systems and methods described herein provide for a flush-mounted vehicle control barrier having a shallow foundation. According to one aspect of the disclosure provided herein, a vehicle control barrier includes a sub-frame, a wedge plate, and an actuator mechanism that is coupled to the sub-frame and disposed within an interior space of the sub-frame.

Abstract: A safety barrier for a fuel truck is disclosed. The barrier consists of a pair of side rails hingedly attached to the truck where they may be deployed perpendicularly from its side. The rails include support legs and further include front rails that are deployed generally parallel to the sides of the fuel truck to provide a physical and visual barrier when the fuel truck is dispensing its load. Additionally, the barrier may include a plurality of LED devices connected to the power supply in the truck to enhance the visibility of the barrier.

Abstract: In one embodiment, 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: A telescopic bollard comprising: a bollard assembly, the bollard assembly including an outer bollard part defining a guide bore extending in a direction along the axis thereof from a base end to a head end thereof. An inner bollard part is housed within the guide bore so as to be slidingly moveable therealong between: a telescopically retracted state in at least some of the length of the inner bollard part resides within the guide bore, and a telescopically extended state in which relatively less of the length of the inner bollard part resides within the guide bore and relatively more of said length extends beyond the head end of the outer bollard part.

Abstract: A form-fitting connection between two components (5 and 14) has a break-away function in one direction. At least one connection element, designed as a shear bolt (6), is formfittingly connected to the first component (5) to be connected. The end of the shear bolt (6) is formfittingly and functionally connected to a second component (14) via an attached component (17) that is resilient in the direction of the formfitting connection.

Abstract: A barrier system comprises a housing, substantially vertical members, and vertical guide tubes. The housing extends into the ground. The guide tubes are positioned in the housing and also extend into the ground below the housing. The substantially vertical members are translatable vertically within the guide tubes. At least one barrier member is secured to the substantially vertical members. The at least one barrier member may comprise at least one guardrail, a plurality of chains or cables, and/or a plurality of gate beams. A series of cables and pulleys form an actuation system that raises and lowers the substantially vertical members relative to the guide tubes to selectively extend and retract the at least one barrier member relative to the ground. A cover plate may selectively cover the top opening of the housing when the barrier member and substantially vertical members are retracted within the housing.

Abstract: A bollard comprises an elongate outer tubular cover, an elongate inner tubular core located within the outer tubular cover, a damper located at a lower end of the inner tubular core, and a washer arranged to locate the damper against the inner tubular core. The outer tubular cover and the inner tubular core are both substantially circular in horizontal cross-section and the outer tubular cover and the inner tubular core are not connected together. The bollard further comprises one or more bolts, each bolt passing through the washer, damper and inner tubular core and into the ground.

Abstract: A fail-safe circuitry for a vehicle barrier security system prevents accidental raising of the barrier due to inadvertent closing of an activation relay causing power to be provided to an activation mechanism raising the barrier. A latching relay, having a latched state and reset state, is placed in series between the activation relay and the activation mechanism. The latching relay is reset whenever the OPEN switch is pressed for lowering the barrier or an automatic reset relay is energized by a controller whenever passage of a vehicle is sensed. Prior to raising the barrier, the latching relay must be reset, which can occur by pressing the OPEN switch or by the controller detecting passage of a prior vehicle and activating a automatic reset relay. Accidental raising of the barrier due to malfunctions of the activation relay due to vibrations is prevented by latching and resetting the latching relay.

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: 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: 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 the apparatus between a retracted arrangement and an extended arrangement, a mass configured to deploy the apparatus to the extended arrangement, and a retractor configured to retract the apparatus to the retracted arrangement. The penetrators can be arranged in sections and the penetrators can be arranged so as to be multi-directional within each section.

Abstract: One estimate indicates that rubbernecking and congestion consumes about 4% of this country's fuel. Two approaches are presented to help solve this problem. The first uses shields to block the view of a car accident. Rubbernecking is reduced since the visibility of the car accident is reduced. A second approach uses mobile flat units that can be remotely controlled to enter a roadway that is carrying active traffic. The traffic runs over these units that are being moved until the master processor indicates that the mobile flat units are in position. A post is extended from the flat unit that issues commands to the motorists so the master processor can begin to control and reduce congestion. Both approaches can be used to help decrease fuel waste in the US.

Abstract: The invention discloses a scissor-type gate blocking apparatus with an adjustable blocking width of a gate leaf. According to its technical solutions, the apparatus comprises a shaft 1 and an initiative swing arm 4. It also comprises an eccentric disk 21 connected with the shaft 1 and eccentrically provided with a plurality of mounted holes 211 of the eccentric disk 21, an eccentric amount adjusting piece 22 connected with the eccentric disk 21 through the mounted hole 211 of the eccentric disk 21, a small shaft 223 eccentrically fixed at the eccentric amount adjusting piece 22, and a connecting rod mechanism adjusting its length retractably and connected with the initiative swing arm 4. The blocking apparatus has the advantages that it has a simple and practical structure and can adjust the blocking width of the gate leaf within a certain range.

Abstract: The system for remote control of retractable, ground-based vehicle barriers increases control of the emergency lane of the road by mounting ground signboards in the emergency lane to prevent any vehicle to pass through this lane and so the police vehicle or the ambulance can easily and quickly approach the site of accident through the emergency lane. The signboards include a U-shaped frame permanently mounted in the emergency lane and a panel pivotally attached to the frame. Servo motors are provided to rotate the panels between a vertical position providing a barrier to traffic and a horizontal position permitting an emergency response vehicle to travel through the emergency lane. The emergency response vehicle is provided with a remote control unit having a short-range transmitter that transmits a trigger signal that is received by a unit at the barrier sign to activate a motor controller to lower the sign.

Abstract: A vehicle destabilizing device that provides for the selective, remotely-deployed deflection and/or overturning 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 switch, one or more lifting devices, a housing, and one or more structural members contiguously engaging the vehicle. The housing can be at least partially submerged in a road surface or protrude from the road surface so as to be driven over until deployed. A sensor can provide independent deployment once the device is armed.

Abstract: In one embodiment, 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: Embodiments of the invention provide a gravity-lowered net that is housed above the surface onto which it is to be used, and is lowered by sliding weights that position the net to the correct height for use. Certain embodiments of the nets may be provided with one or more energy absorber elements associated with the net, which help enhance the energy absorptive capabilities of the net.