Reflective barriers

The purpose of this type of barriers is to prevent noise to pass through the barrier. Unlike absorptive barriers, noise is reflected from the barrier and, to some extent, returns to the source. This may cause interference (overlaying) of sound waves, which may increase the noise level to the environment. Barriers of this type are used in places where using other barriers would reduce the amount of light as well as in places where noise should be suppressed, but at the same time the exposure of objects located behind the barrier should be allowed (when e.g. a guesthouse or a store is covered with an opaque noise barrier, its owner will sustain losses because such application will effectively reduce the number of customers).

• Barriers made of polycarbonate, acrylic glass — their primary advantage is very high fracture resistance of the material. In addition, polycarbonate is a perfect material for use in arched structures. These panels are additionally covered on both sides with a coating protecting against UV rays and a layer increasing abrasion resistance; this layer additionally facilitates the removal of graffiti,
• Concrete noise barriers.