The plan view of a small noise model is shown below:<\/em> You\u00a0not need to know in detail how these affect the generation and spread of noise. For example, a barrier may screen part of road from some receivers, but other receivers may\u00a0have no\u00a0screening.\u00a0You do\u00a0not need to consider this detail. You only have to make sure that you\u00a0include the various objects which could affect the spread of noise, and NoiseMap will work out how these affect the noise level at any point of interest.<\/p>\n The 3-D view of the same model:<\/em><\/span><\/p>\n The noise model resembles the three-dimensional physical situation, but only includes the features which affect the spread of noise.\u00a0 These only need to be shown to a level of detail and accuracy which will give acceptable noise calculations. It is hard to visualise the 3-D nature of the model, but NoiseMap has a 3-D viewer to make this easier.<\/p>\n Noise contours produced by this model:<\/em><\/span><\/p>\n Noise contours overlaid on the 3-D view:<\/em><\/span><\/p>\n A NoiseMap noise model supplies all the data that NoiseMap\u00a0needs for\u00a0noise predictions.\u00a0 You can think of it as a special form of digital map. The NoiseMap model must describe: Noise source, such as roads, vehicles, plant, railway tracks Transmission path, particularly noise barriers,\u00a0 ground topography and hard or soft ground cover Receiver locations The plan … Continue reading Making a noise model<\/span>
\n![\"Noise](\"http:\/\/www.noisemap.ltd.uk\/wpress\/wp-content\/uploads\/2015\/12\/Noise-model.png\")
<\/a><\/span><\/p>\n<\/a><\/p>\n<\/a>The noise contours can be viewed on the plan of the model. These contours are for the industrial source on the left. Separate contours have been made for the road and railway.<\/p>\n<\/a>It can be much easier to understand the effects when viewed in three dimensions by overlaying the contours onto the 3-D model.<\/p>\n","protected":false},"excerpt":{"rendered":"