A connecting device is provided, including an elongate member (EM) having two or more engaging elements which are spaced along the length of the EM; and at least one engaging element which orthogonally extends out from the EM and which has a portion which also extends, in a direction substantially parallel to the longitudinal axis of the EM, a distance Y, wherein distance Y extends substantially 15-20% of the length of the EM.

An example barrier connection system comprises at least one pair of connectors, each connector including a mounting section for attachment to a barrier, the mounting section having inner and outer faces, and first and second connector elements at respective sides of the mounting section. In one example, the first connector element comprises an inwardly extending flange that is spaced from the inner face of the mounting section to at least partially define a recess there between. The second connector element comprises an outwardly extending flange. The inwardly and outwardly extending flanges are dimensioned and orientated such that, in use, the outwardly extending flange of each connector is receivable within the recess of the other connector.

A safety trailer 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 each wall section has first and second end members, each of the first and second end members comprising an outwardly projecting alignment member and an alignment-receiving member, the first and second end members having the alignment and alignment-receiving members positioned in opposing configurations.

A barrier system is provided including a plurality of barrier members arranged in an end to end manner to form an elongate barrier structure. A first end barrier member is located at a first end of the elongate barrier structure and a second end barrier member is located at a second end of the elongate barrier structure. Each of the first and second end barrier members have base anchor means provided or associated with at least an outermost end thereof to anchor a base of the first and second end barrier members to a surface on which the barrier system is to be located in use. A pair of barrier members consisting of two adjacent barrier members, which are not the first and second end barrier members but which are adjacent to each of the same, are provided with channel means located on, at or adjacent at a top thereof.

A roadway safety device includes one or more spacers which engage a falling arm attached to a sign so as to lift the sign relative to a structure on which a housing bracket attached to the arm rests. The roadway safety device may include a spacer which dampens the fall of the arm and which holds the arm at an upward angle to make the sign more visible to drivers.

A K rail end cap is fixed to ends of the K rails to repair chipped K rails or protect the ends of undamaged K rails. The caps are preferably a plastic material or the like, are between 0.093 inches and 0.125 inches thick, and about 9 inches deep. The caps slip over the top, sides, and bottom of the K rail ends, and may be glued in place. An opening in the face of the caps exposes metal loops at each end of the K rails to allow connection of consecutive K rails after the caps are attached.

A method for using barrier systems includes positioning a plurality of barrier systems at a location, each barrier system having: a barrier having an interior surface and an opposing exterior surface, the interior surface bounding a chamber that is adapted to receive a ballast; and a light assembly secured to the barrier, the light assembly comprising a housing having a lens that at least partially bounds a compartment, a light source at least partially disposed within the compartment, and programmable circuity in electrical communication with the light emitting device. A control device is used to communicate wirelessly with programmable circuity of each barrier system after the barrier systems are positioned at the location so that data is transferred between the control device and the programmable circuity of each barrier system.

A crash cushion includes first and second diaphragm frames each having first and second laterally spaced sides defining first and second planes sloping inwardly from a top to a bottom of each side of the first and second diaphragm frames. The first diaphragm frame is moveable relative to the second diaphragm frame in response to a head-on impact. The first and second side panels are attached respectively to the first and second sides of the first and second diaphragm frames, wherein the first and second side panels are moveable relative to the second diaphragm frame in response to the head-on impact. In one embodiment, the side panels may have variable cross sectional shapes along a length thereof. In addition, each frame may include a plurality of longitudinally spaced guides for engaging a rail.

A traffic barrier and soundwall system is disclosed having wide-flanged [or h-posts] vertical posts oriented with a flange facing a roadway. Traffic barriers are located between them. The barriers have recesses at the intersection of their backs and ends. Sound panels are stacked on top of the traffic barriers. A crash panel is located between the vertical posts, above one or more sound panels. The crash panels have recesses at the intersection of their backs and ends. Additional sound panels are stacked above the crash panels. An angle bracket is located in the recess. U-shaped connectors connect the recesses of adjacent traffic barriers together around a post. U-shaped connectors connect the recesses of adjacent crash panels together around a post, and above the traffic barriers and sound panels to achieve a MASH TL-4 crash test rating.

A system for displaying a desired reflective sheeting striping pattern on a traffic management device includes providing a portable panel having reflecting sheeting affixed to a face thereof, orienting the portable panel as desired, and affixing the panel to the device using fastener holes disposed about a perimeter of the panel. The displayed striping pattern may be easily changed by removing the panel from the device, turning the panel over to display an opposing side, on which is displayed a different striping pattern, and reattaching the panel to the traffic management device so that the opposing side of the panel is displayed, or by removing the panel from the traffic management device, rotating the panel by 90 degrees, 180 degrees, or 270 degrees, and then reattaching the panel to the traffic management device so that the same particular striping pattern is oriented in a different direction.