A sound absorbing structure includes a wall having a first side and a second side and at least one acoustic scatterer coupled to a first side of the wall. The first side of the wall may be positioned to face a source of noise, such as moving motor vehicles, airplanes, and the like. The at least one acoustic scatterer has an opening and at least one channel. The at least one channel has a channel open end and a channel terminal end with the channel open end being in fluid communication with the opening.

A sound barrier system for use in mitigating noise having an origami sheet or origami-inspired mechanism that can use folding to change configuration and lattice topology; and a plurality of cylindrical inclusions disposed on top of the origami sheet. The plurality of cylindrical inclusions being periodically arranged such that folding kinematics of the origami sheet induces reconfiguration of the periodicity of the plurality of cylindrical inclusions and associated wave blocking of the noise.

Described herein is an acoustic structural panel having a first exposed major surface opposite a second exposed major surface and side surfaces extending between the first and second exposed major surfaces, the acoustic structural panel comprising a first protective layer comprising at least a portion of the first exposed major surface, a second protective layer comprising at least a portion of the second exposed surface, a core structure located between the first and second protective layers, the core structure comprising, a foam body; and a fibrous body, wherein the first major exposed surface of the acoustic structural panel comprises a plurality of apertures exposing the fibrous body.

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. An angle bracket is positioned in the recess to separate the post from the barrier. A U-shaped strap has a base and a pair of arms extending from the base. Traffic barriers are positioned against the posts so that the angle brackets in the recesses are adjacent to the road-facing flange of the post. A strap fastener connects an arm of the strap to the recess of each of the adjacent traffic barriers. In this way, the base of the strap surrounds the rearward-facing flange of the post to secure the traffic barriers to the post. Sound barrier panels are located on the top of the traffic barriers, secured between the webs of the neighboring posts.

Embodiments relate to a plastic wall panel, comprising a hollow body having external walls and defining an internal cavity. The external walls include: a first major side wall, a second major side wall opposite the first major side wall, a minor top wall, a minor bottom wall, a first minor end wall and a second minor end wall opposite the first minor end wall. The minor top wall and the minor bottom wall each define mating structure to mate and align with another adjacent panel so that multiple panels can be tiled together to form at least part of a sound attenuation barrier. The hollow body defines a passage extending between the first and second major side walls and through the first and second minor end walls to receive a reinforcing beam.

A sound barrier includes panels comprising a polymeric material and reinforcing inserts encased within the polymeric material; and a frame comprising posts positioned in spaced, parallel relationship and extending vertically upward, and defining inwardly-facing slots for receiving the panels. The panels are mounted lengthwise with ends within the slots and adjacent panels engage each other by tongues and grooves of lateral surfaces. Methods of making the sound barrier are provided.

A noise barrier system and method for quickly and modularly installing or erecting a temporary sound interruption wall. The system can include one or more panels each, a leveling bracket adjustably mountable to a support member, a clamping bracket for mounting a panel to a support member, a double clamping bracket for clamping a pair of panels together and mounting them to a support member, and a panel clamp for clamping a pair of panels together. The leveling bracket can include a support wall to support portions of adjacent panels, and an arm for removably securing to a flange of the support member. The panel clamp, the clamping bracket and the double clamping bracket can each include open channel configuration configured to receive a single portion of a panel or portions of pair panels, and a slidably adjustable clip for securing the portion of the panels therein.

A fence panel system includes a plurality of fence panels positioned in a line, each of the fence panels coupled together in series by a plurality of rail members that extend horizontally between a plurality of fence posts, where each of the fence panels having a first side edge and a second side edge opposite the first side edge with each of the side edges configured to receive a side edge of a second fence panel to form a vertical connection, and where each of the fence panels includes a plurality of mesas traversing from the first side edge to the second side edge. The fence panel system can further include a plurality of fasteners to connect the plurality of fence panels to the plurality of rail members.

A cable road safety fence for installation at a lateral or median side of a road has a series of spaced apart upright posts, and a plurality of tensioned cables provided at different levels on and supported by said posts. At least one noise absorbing panel is mounted onto the cables with at least two mounting points, said points being at different levels.

A protection device (5a) for motorcyclists, adapted to be secured to a road safety barrier (1) with a plurality of poles (3) regularly spaced out, the protection device (5a) including a longitudinal beam (6a) and a spacer (7a) extending longitudinally alongside the rear side of at least one part of the beam (6a) and adapted to be secured to the poles, wherein the beam (6a) and the spacer (7a) are assembled together so as to define, in the part of the beam, a longitudinal damping volume (V) with a closed cross-section.