Brussels-Capital Region : The road network in the Brussels-Capital Region is divided in regional (generally the most structuring traffic axes) and municipal (generally roads of local character) roads. Approximately 20% of the road network is managed by the region.

Brussels-Capital Region : aircraft noise register for the reference year 2021 (noise contours maps) for the Ln acoustic indicator (night-time noise indicator). These maps are produced with an acoustic model in accordance with the prescriptions of the European directive 2002/49/EC

Brussels-Capital Region : Air traffic noise map for the reference year 2021 (noise contours maps) for the Lden acoustic indicator (day-evening-night noise indicator). These maps are produced with an acoustic model in accordance with the prescriptions of the European directive 2002/49/EC