Noise Index Night (LNight) for supplementary roads
收藏官方服务：
资源简介：
Isophones for the Noise Index Night (LNight) for supplementary roads According to § 47b of the BImSchG, main roads are “Bundesfernstraße, Landesstraße or other cross-border road, each with a traffic volume of more than three million motor vehicles per year” Supplementary roads include other roads with lower traffic and/or other categories of roads (including district and municipal roads) Calculation is based on Directive 2002/49/EC on the assessment and control of ambient noise (EU Environment Noise Directive – EU-ULR)
