Rail Noise - All Metrics - England Round 4

Data indicating the level of noise according to the strategic noise mapping of rail sources across England.

- The day-evening-night level (Lden) is a noise indicator for overall annoyance based upon annual average A-weighted long-term sound over 24 hours with a 5 dB(A) penalty for evening noise (19:00-23:00) and a 10 dB(A) penalty for night-time noise (23:00-07:00).
- The 16-hour equivalent continuous level (LAeq,16h) is a noise indicator which describes the annual average steady noise level over the 16-hour daytime period (07:00 to 23:00) which contains the same sound energy as the actual fluctuating sound across the same period.
- The day level (Lday) is a daytime noise indicator based upon annual average A-weighted long-term sound over the daytime period (07:00-19:00) which contains the same sound energy as the actual fluctuating sound across the same period.
- The evening level (Leve) is an evening noise indicator based upon annual average A-weighted long-term sound over the evening period (19:00-23:00) which contains the same sound energy as the actual fluctuating sound across the same period.
- The night level (Lnight) is a night-time noise indicator based upon annual average A-weighted long-term sound over the night period (23:00-07:00) which contains the same sound energy as the actual fluctuating sound across the same period.
- The 6-hour equivalent continuous level (LAeq,6h) is a noise indicator which describes the annual average steady noise level over the 6-hour period (24:00 to 06:00) which contains the same sound energy as the actual fluctuating sound across the same period.
- The 18-hour equivalent continuous level (LAeq,18h) is a noise indicator which describes the annual average steady noise level over the 18-hour period (06:00 to 24:00) which contains the same sound energy as the actual fluctuating sound across the same period.

Noise levels are modelled on a 10m grid at a receptor height of 4m above ground, with a lower threshold cutoff of 35dB for the Lnight and LAeq,6h metrics, and 40dB for all other metrics. Data is available for all railway sources and also those defined as "major" under the Regulations.

This data is a product of the strategic noise mapping analysis undertaken in 2022 to meet the requirements of the Environmental Noise (England) Regulations 2006 (as amended). Attribution statement: © Department for Environment, Food & Rural Affairs copyright and/or database right 2023. All rights reserved.

该数据集反映了英格兰铁路来源的战略噪声映射水平。其中，日间-夜间噪声水平（Lden）作为整体扰民程度的噪声指标，基于24小时内的年平均A计权长期噪声，并对夜间噪声（19:00-23:00）实施5 dB(A)的惩罚，对夜间噪声（23:00-07:00）实施10 dB(A)的惩罚。

16小时等效连续噪声水平（LAeq,16h）是一种噪声指标，描述了16小时日间时段（07:00至23:00）的年平均稳定噪声水平，该时段包含与实际波动噪声相同的声能量。

日间噪声水平（Lday）是一种基于日间时段（07:00-19:00）的年平均A计权长期噪声的日间噪声指标，该时段包含与实际波动噪声相同的声能量。

夜间噪声水平（Leve）是一种基于夜间时段（19:00-23:00）的年平均A计权长期噪声的夜间噪声指标，该时段包含与实际波动噪声相同的声能量。

夜间噪声水平（Lnight）是一种基于夜间时段（23:00-07:00）的年平均A计权长期噪声的夜间噪声指标，该时段包含与实际波动噪声相同的声能量。

6小时等效连续噪声水平（LAeq,6h）是一种噪声指标，描述了6小时时段（24:00至06:00）的年平均稳定噪声水平，该时段包含与实际波动噪声相同的声能量。

18小时等效连续噪声水平（LAeq,18h）是一种噪声指标，描述了18小时时段（06:00至24:00）的年平均稳定噪声水平，该时段包含与实际波动噪声相同的声能量。

噪声水平以10米网格进行建模，在距地面4米处的接收器高度上，对于Lnight和LAeq,6h指标的下限截止值为35dB，对于所有其他指标的下限截止值为40dB。数据涵盖所有铁路来源，以及根据法规定义的“主要”来源。

该数据集为2022年进行的战略噪声映射分析成果，旨在满足2006年（修订版）环境噪声（英格兰）法规的要求。版权声明：©英国环境、食品与农村事务部版权和/或数据库权利2023。版权所有。