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Thread: Noise Map

  1. #1
    Geek GingerTheCat's Avatar
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    Default Noise Map

    HAS ANYONE SEEN THE GOVERNMENTS NOISE MAP

    Sorry, I mean has anyone seen the Governments Noise Map.

    Perfect for finding a quiet corner of Liverpool for a bit of summer relaxation

    The airport noise map is interesting. Although I don't suppose that is the word you would use if you live near it.

    Mike


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    Local Historian Cadfael's Avatar
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    So the massive field by ours which borders a quiet housing estate on one side, and the loop line on the other side, a field where you can here the grass grow has the same noise level as if you were standing on the main road?

    Who really does think these things up.

  3. #3
    Geek GingerTheCat's Avatar
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    Yeah it is a bit disappointing isn't it. I thought somebody had actually measured the noise in these places but they haven't. It was just worked out using a model.

    How were the maps made?

    The noise maps have been made using computer modelling techniques, based on information such as traffic flow data, road/rail type, and vehicle type data. No actual noise measurements have been made in the production of these strategic maps. The modelling, where necessary, also took account of features which affect the spread of noise such as buildings and the shape of the ground (e.g. earth mounds), and whether the ground is acoustically absorbent (e.g. fields) or reflective ( e.g. concrete or water). The calculations produced noise level results on a 10m grid at a receptor height of 4m above ground, as required by the END and the Regulations.
    The data required for the calculations of noise levels have been collated in liaison with various organisations including the Department for Transport, Highways Agency, Network Rail, various airport operators, and the Environment Agency.

    How accurate are the maps?

    The noise maps have been produced for use at a strategic level and give an acceptable level of accuracy for these purposes. They will not however necessarily properly represent the situation at a local level and the results of the noise mapping should not be used alone for any land use planning or location-specific assessments.

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