Strategic noise map - 2011 - important and complementary roads - Lnight - contours

Strategic road traffic noise map with more than 3 million vehicle passages per year according to RL 2002/49/EC, together with impact of additional roads. The reference year of these dates is 2011. The sound card indicates how much noise the environment is exposed to. The noise level is expressed in the parameter Lnight. The Lnight level is the average of the noise levels during the night (23-07h) and is one of the noise indicators that are representative of possible, nocturnal sleep disturbance. These noise maps are updated every 5 years.