Soundproofing (GWV)

Soundproofing facilities (GWV). A GWV file is delivered/created annually, which describes the situation on 31-12 of that year. The GWV file contains, among other things, the following sound-resistant objects: 1. Soundwalls 2. Sound screens 3. Tunnel entrances 4. Deepened reclining road sections. The data in the GWV file consists of: 1. Geometry of the object 2. Descriptive features of the object that are important for the sound-resistant function 3. Photos of the object. The reason for the changes to the GWV file can be divided into 3 categories: 1. New location facilities. 2. Changes due to the placement of smaller facilities or extension of existing facilities. 3. Changes due to the demolition of facilities. Definition of noise protection devices (GWV): An object is a soundproofing device if it meets the following requirements: A. The object is managed by Rijkswaterstaat. B. The object should be intended to reduce noise from road traffic in the area seen from the road behind the object, in most cases construction or nature reserve. C. The object or part of the object shall be within a strip of 50 metres from the nearest lane on one of the lanes. However, in the latter situation, the entire object must be classified as GWV. D. A contiguous part of at least 30 metres in length, measured parallel to the nearest sideline, shall be at least 1.0 metres in height relative to the level on the spot of that cross-stripe. In the case of an object with a height of at least 1.0 meters that has been set up to prevent a ‘noise leak’, for example in the case of a portal along the road, the requirement that the object must be at least 30 metres long does not apply. e. The object must have a top angle of less than 165 degrees.