Abstract: A sound wall for placement along a roadside for reducing the transmission of sound from a traffic area wherein the sound wall comprises a plurality of stiff, resilient containment members respectfully configured with the channel configuration and having an enclosed channel volume and continuous open side. Each channel volume is filled with a composite composition of rubber chips and binder compressed within the channel and substantially filling the channel volume. These containment members are stacked in nesting relationship to form a wall structure, with the open side being oriented toward the traffic area.

Abstract: A device is provided preventing the transmission of sound, the device being fabricated of polymer composition and comprising a hollow core member formed of fiber-reinforced thermosetting resin, and at least outer member formed of unreinforced thermoplastic resin which is friction fit to the core member. The core member and outer members are preferably formed by pultrusion and extrusion, respectively. Adjacently disposed devices are connected together to form a fence-like barrier through which few or no sound waves are allowed to pass. This system is advantageously used to prevent sound waves emanating from a large transportation structure such as a highway, railroad track, or airport.

Abstract: An adjustable glarefoil assembly is provided for mounting to a median barrier which divides opposing lanes of a highway and operates to reduce the glare of headlights from oncoming vehicles. The glarefoil assembly includes a plurality of glarefoil blades which are adjustably coupled for angular movement with respect to a base runner section in an appropriate light blocking orientation. The base runner section is rigidly mounted to the top of the median barrier at between three and five spaced points, thereby preserving some latitude for vibrational movement within the base runner section. The glarefoil blades are each adjustable about a vertical, longitudinal axis so as to optimally provide sight obstruction for a variety of different road curvatures, as well as maintaining the best possible angle to prevent wind build-up.