Noise all road traffic 4th tranche Lden (flat)

This file contains the contours Lden (55, 60, 65, 70 and 75 dB) of all provincial roads in 2021. This dataset shows the noise pollution of provincial roads in the province of Groningen. The card arises from legal obligations (of the Environmental Management Act). The dataset should be updated every 5 years. The data present the contours at an observation height of 4 meters. The data refer to the annual average situation in 2021. Traffic intensities are not constant, and interventions can take place on and around the roads, as a result of which the noise load changes. When it comes to small shifts in traffic intensities, this will have little impact on noise levels.