![\"View-As-Colour](\"http:\/\/www.noisemap.ltd.uk\/wpress\/wp-content\/uploads\/2017\/01\/Height-VAC.png\")
<\/a>This provides an overview of the topography of an area. This can be used to check very easily whether the height data imported or entered is correct. It will also show any dramatic differences in heights of neighbouring objects, which can indicate errors.<\/p>\n
Road Heights<\/strong><\/p>\n One of the ways this can be used is to show what is happening with the road heights at split level junctions.\u00a0 In the diagram above, it can be seen that a side road which crosses the main road is the same colour as the main road, showing that they are at the same height, rather than one road being above the other. This makes the problem easy to identify.<\/p>\n Traffic Flows<\/strong><\/p>\n The view-as-colour tool can be used for checking the traffic flows assigned to the roads. In this example the main road has a high flow shown in red and the side roads with lower flows are shown in\u00a0blue shades.<\/p>\n Traffic Speeds<\/strong><\/p>\n Another common example is looking at traffic speeds, the thematic viewing makes it very easy to see at a glance whether any errors have crept in from the input data.<\/p>\n Gradient Check<\/strong><\/p>\n This diagram shows how the gradients of the roads vary along their length. Gradients are very modest on most new roads, and normally below 10 %. However, in this illustration there are a few short segments with a much higher gradient. This is indicative of errors in their start and\/or end heights, perhaps due to ‘draping’ the road over an existing ground model. Such errors can be quickly spotted and eliminated.<\/p>\n Carriageway\u00a0Type<\/strong><\/p>\n For many calculations, it is necessary to assign\u00a0carriageway types such as normal two-way road, single carriageway and dual carriageway. This viewing tool makes it easy to check for errors in the process.<\/p>\n Construction Sites<\/strong><\/p>\n In the above diagram,\u00a0the\u00a0working locations\u00a0are coloured according to the number of activities taking place.\u00a0 This not only shows where most of the work is occurring, but lets you see if any have been omitted.<\/p>\n The<\/a> above diagram shows\u00a0the Category of activity – this could be the type of activity such as excavation, installation of plant, concreting or re-instatement.<\/p>\n Above,\u00a0you can see\u00a0which source is causing\u00a0most of the noise affecting a particular receiver point.\u00a0 Those coloured red are the predominant noise sources: those coloured grey are not being used in the current scenario.\u00a0 This visualisation is very useful when designing mitigation.<\/p>\n A big advantage of the NoiseMap approach is that you can see all the values of all the parameters that affect the noise level at any location. These can be output to a spreadsheet for detailed analysis.<\/p>\n Railway Noise<\/strong><\/p>\n Railway noise visualisation tools are very similar to the Site Noise tools shown above.<\/p>\n This page just gives a taste of the full visualisation tool set.<\/p>\n","protected":false},"excerpt":{"rendered":" The View-As-Colour tool allows you to see at a glance the values of any of the parameters for a majority of the object types. This is a very powerful tool for model checking. Here are some examples. Heights This provides an overview of the topography of an area. This can be used to check very … Continue reading View As Colour<\/span> <\/a><\/a><\/a><\/a><\/p>\n\n
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