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.

The portable view barrier system is a privacy screen. The portable view barrier system is adapted for use with emergency service personnel. The portable view barrier system is adapted to protect the privacy of a patient from the view of traffic during an unfortunate event. The portable view barrier system comprises a plurality of mesh panels, one or more living hinges, and a plurality of weighted anchors. Each of the plurality of mesh panels is a screen the blocks the view of the unfortunate event from passing traffic. The one or more living hinges attaches an initial mesh panel selected from the plurality of mesh panels to a subsequent panel selected from the plurality of mesh panels. The plurality of weighted anchors form anchor points that anchor the interconnected plurality of mesh panels to the ground. The portable view barrier system is a collapsible structure stored within an emergency response vehicle.

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.

Diffractor for diffracting sound of traffic on a travel surface with at least one diffraction plate disposed laterally beside the travel surface. The diffraction plate is provided with a pattern of recesses in the upper surface thereof for the purpose of diffracting the traffic noise in a direction which differs from the lateral direction. Each of the recesses is divided into individual resonators by intermediate walls provided in the recesses. The recesses have acoustically substantially non-absorbing walls and are free of acoustically absorbing material. The intermediate walls between adjacent resonators have at least one throughflow opening along which the rainwater can flow from the one resonator to the other.