A safety trailer is shown including first and second platforms, at least one of said first and second platforms having an axle and wheels attached thereto; a plurality of interconnected wall sections positioned between and connected to the first and second platforms, the plurality of wall sections defining a protected work area on a side of the trailer; The axle of the trailer is engaged with a vertical adjustment member configured to selectively adjust a vertical position of the surface of the trailer.

A kinetic energy absorbing barrier structure, characterized in that it comprises a shell designed to contain a frame in which multiple weights are suitably positioned and which surrounds a tank; the tank is designed to contain a volume of water, gel or other material and defines one or more compartments designed to contain soil for plants; the frame is characterized by having a high capacity of deformation so that the structure is able to absorb the energy deriving from a possible impact, minimizing the movements.

A crash attenuation system having an improved, controlled axle release mechanism for a truck trailer mounted attenuator. The axle release mechanism has an axle release insert disposed within an outer bursting tube which is urged downstream by a mandrel resulting in controlled shearing of the fasteners passing through different size elongated slots in the insert and retaining the insert within the bursting tube. Differential shear forces cause the fasteners to shear at different times as the insert is urged downstream resulting in a controlled release of the breakaway axle assembly.

A crash attenuator includes a frame having a first frame member and a second frame member rigidly connected with a hinge assembly in a pre-impact configuration. The first and second frames are hingedly connected with the hinge assembly in an impact configuration. The hinge assembly includes a release plate fixedly connected to the first frame member, wherein the release plate comprises a fastener opening and a slot extending between the fastener opening and an edge of the release plate, and a fastener extending through the fastener opening and connecting the release plate to the second frame member when the first and second frames are in the pre-impact configuration. A hinge assembly, and method of using the crash attenuator, are also provided.

A towable crash-attenuating vehicle is shown having a frame; at least two axles coupled to the frame, each of the axles having wheels attached thereto; a T-shaped ballast coupled to the frame, and oriented such that the weight of the ballast is biased toward the front end of the frame; deflection shields coupled to the right and left sides of the frame, wherein the deflection shields cover the frame and a majority of the wheels on each side of the vehicle; a tow connection coupled to the front of the frame, pivotable from a deployed state to an undeployed state; an impact attenuator coupled to the rear of the frame; wherein the vehicle is provided with a brake system, and wherein said brake system may be locked and unlocked and wherein the vehicle is provided with an on-board mechanism for locking and unlocking the brake system.

A system for generating collision data captured by safety monitoring equipment on-hoard a safety truck may include a processor that receives an indication of a speed of a vehicle approaching the safety truck and that overlays a textual indication of the speed of the vehicle onto frames of video captured of the vehicle. If the processor receives an indication that the vehicle has collided with the safety truck, a timestamp is associated with the video and a predetermined portion preceding the timestamp and after the timestamp is not overwritten.

Right and left safety module embodiments are designed to be installed in insets located midway along right and left sides of flatbed trucks. The modules provide man baskets that have lower and upper platforms. While the truck is being driven alongside a roadway work zone, a workperson standing on the module's lower platform either 1) moves traffic delineators one at a time from the upper platform, and then places the delineators at spaced locations alongside the roadway work zone, or 2) removes traffic delineators one at a time from spaced locations alongside the roadway work zone, and then places the delineators onto the upper platform. Vertically movable safety rails and pivotal safety gates of the modules prevent falls from the modules of workpersons standing on the lower platform.

A safety trailer is shown including first and second platforms, at least one of said first and second platforms having an axle and wheels attached thereto; a plurality of interconnected wall sections positioned between and connected to the first and second platforms, the plurality of wall sections defining a protected work area on a side of the trailer; and wherein the trailer supports a ballast member, the ballast member being positioned near a first side of the trailer and the wall sections near a second, opposing side of the trailer, the ballast member offsetting, at least partially, a weight of the plurality of wall sections.

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.

A safety trailer is shown including first and second platforms, at least one of said first and second platforms having an axle and wheels attached thereto; a plurality of interconnected wall sections positioned between and connected to the first and second platforms, the plurality of wall sections defining a protected work area on a side of the trailer; and wherein the trailer supports a ballast member, the ballast member being positioned near a first side of the trailer and the wall sections near a second, opposing side of the trailer, the ballast member offsetting, at least partially, a weight of the plurality of wall sections.