Noise mapping: Rail Noise Night (LNight)

Noise maps for the non-federal main railway lines. Environmental noise mapping according to the EU Ambient Noise Directive (Directive 2002/49/EC) or the Sixth Part “Noise Reduction Planning” in the Federal Immission Control Act. Calculation rule until the end of 2018: VBUSch, from 2019: BUB. The LNight noise index is a measure of the average noise exposure in the night hours from 10 p.m. to 6 p.m. The calculated sound levels are grouped into level classes in 5 dB(A) grading. All non-federal main railway lines outside the agglomerations with a traffic volume of more than 30.000 trains/year (equivalent to 82 trains/day) must be mapped. Database: Traffic data of transport companies.

本数据集包含非联邦干线铁路噪声地图。其环境噪声制图严格遵循《欧盟环境噪声指令（EU Ambient Noise Directive，指令2002/49/EC）》或《联邦公害防治法（Federal Immission Control Act）》第六部分"降噪规划"的相关要求。计算规则方面，2018年年底前采用VBUSch，2019年起改用BUB。LNight噪声指数用于表征夜间时段（22:00至次日6:00）的平均噪声暴露水平。计算得到的声级以5dB(A)为间隔划分为若干声级等级。所有位于城镇集聚区域外、年列车通行量超过30000列（折合日均82列）的非联邦干线铁路，均需纳入噪声地图制图范围。本数据集的数据库来源于各运输企业的交通运营数据。