Noisy Cities – Possible

Remember: decibels are not a linear scale. Instead, we experience an increase of 10 decibels as a doubling of loudness. For example, 80 decibels is four times louder than 60 decibels.
Data Sources: DEFRA (Department for Environment, Transport and Rural Affairs). Data is entirely modelled and not directly from any monitoring stations. The London data only shows main roads as the UK only carries out the minimum mapping required under the EU Environmental Noise Directive. More information ––– https://www.gov.uk/government/publications/strategic-noise-mapping-2019
Data are under the third five year cycle of EU Environmental Noise Directive reporting. Data is ‘Lden’ (24 hour – day, evening and night) average noise levels for road traffic noise only (hence low levels can be seen on the maps close to railway stations and airports).