Using ICT to Enhance Learning and Teaching in Geography at Key Stage 4 Idea 20 - 'Silence, please be quieter' Downloaded from www.geography.org.uk Online Noise Maps These can be examined before or after any fieldwork or as a standalone. They can be printed out or used on screen. They are forms of Geographical Information System where information is stored for a specific location and for a specific time and can be interrogated and displayed in different ways. Noise Mapping England http://noisemapping.defra.gov.uk/cara/wps/portal/noise The England noise maps were launched by Defra (Department for Environment, Food and Rural Affairs) in May 2008. Some of the maps were compiled well before that date. There are a variety of different maps available from detailed maps of the major cities of England, searchable by post code and showing day and night noise levels from roads, industry, railways and airports with a statistical chart for each given map. The maps are quite small and not as high a resolution as the older, decommissioned London map or indeed the maps available of Scotland, but they can be enlarged for use on PowerPoint or another presentation package. There are also a number of PDF maps of areas of England showing major railway and road routes with their associated noise levels. Above: An example from the England Noise Map showing Nottingham average noise levels from roads during the day.
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Online Noise Maps - Geographical Association · The Paris Noise map plots noise for each of the arrondissements [areas] of Paris. Two different types of map can be selected – 2D
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Using ICT to Enhance Learning and Teaching in Geography at Key Stage 4Idea 20 - 'Silence, please be quieter'
Downloaded from www.geography.org.uk
Online Noise Maps
These can be examined before or after any fieldwork or as a standalone. They can be
printed out or used on screen. They are forms of Geographical Information System
where information is stored for a specific location and for a specific time and can be
These are available online for all of the major airports in Britain. Two maps are
available, one for the day and one for night times. The maps have an OS map base and
show dB noise levels as ‘isohyets’ to make a distinct sound footprint or umbrella. Don’t
forget sound moves in three dimensions.
An Example: Noise at Gatwick Airport
Noise contours or isohyets have been produced
for many years. These use air traffic data during
the summer months to estimate the level of noise
experienced by people living round the airport.
The noise umbrella are taken for the average
summer’s day – 07.00 – 23.00 (Leq)1 The new Environmental Noise Directive (END)
from the EU requires that noise maps be made for the average day over a whole year.
This shows higher noise levels because it attracts an artificial waiting of between 5 and
10 dB for night flights. This means that the END map is an average noise map.
1 These represent different times of the day – Lday 07.00 -19.00. Levening 19.00 -23.00, Lnight 23.00 – 07.00, Leg16hr 07.00 – 23.00, and Lden 00.00 – 24.00