Noise in agglomerations - Noise control equipment - Mapping 2022

The data include the calculation results of the 2022 environmental noise mapping in the agglomerations in Bavaria. These are all cities in Bavaria with more than 100,000 inhabitants, i.e. Munich, Nuremberg, Augsburg, Fürth, Erlangen, Würzburg, Regensburg and Ingolstadt. In each agglomeration, noise was recorded by road traffic, industrial and commercial installations in accordance with Directive 2010/75/EU of 24 November 2010 on integrated pollution prevention and control (Industrial Emissions Directive - IED Directive) and, where available, by tram and above-ground metro transport. The noise calculations are carried out in accordance with the "Calculation method for ambient noise from ground-level sources (roads, railways, industry and commerce) (BUB)".
The noise indices LDEN and LNight in dB(A) are used as a measure of general annoyance or as a measure of sleep disturbances. The LDEN level is an emission level averaged over 24 hours, which is determined from the LDay, LEvening and LNight levels for the assessment times day (6:00-18:00), evening (18:00-22:00) and night (22:00-6:00). Weight factors of 5 dB(A) for the four-hour evening time and 10 dB(A) for the eight-hour night time take into account the increased sensitivity to noise during these times.
The layer represents the noise protection devices on roads in agglomerations. These can be noise barriers, walls, wall combinations or incisions.

本数据集收录巴伐利亚州各城市群2022年环境噪声测绘计算成果。覆盖的城市群均为巴伐利亚州常住人口逾10万的城市，具体包含慕尼黑（Munich）、纽伦堡（Nuremberg）、奥格斯堡（Augsburg）、菲尔特（Fürth）、埃尔朗根（Erlangen）、维尔茨堡（Würzburg）、雷根斯堡（Regensburg）及因戈尔施塔特（Ingolstadt）。
各城市群的噪声监测数据均依据2010年11月24日发布的《关于综合污染预防与控制的2010/75/EU指令》（工业排放指令（Industrial Emissions Directive，IED指令）），由道路交通、工商业设施采集；若条件允许，同步纳入有轨电车与地面轨道交通的噪声数据。本次噪声计算严格遵循《地面源（道路、铁路、工商业）环境噪声计算方法（BUB）》。
本数据集采用dB(A)计量的噪声指标LDEN与LNight，分别用于表征整体噪声烦扰水平与睡眠干扰程度。其中LDEN为24小时平均排放噪声级，通过昼间（6:00-18:00）、傍晚（18:00-22:00）及夜间（22:00-6:00）三个评估时段的LDay、LEvening与LNight噪声级计算得出。针对4小时傍晚时段设置5 dB(A)的权重修正，针对8小时夜间时段设置10 dB(A)的权重修正，以体现该时段人群对噪声的敏感性提升。
本数据集图层涵盖城市群道路沿线的噪声防护设施，包含声屏障、实体围墙、组合式墙体及道路开挖降噪设施。