software maintenance

Grid Noise Map

Noise mapping traditionally uses a grid based system of receivers. SoundPLAN defines the area for a noise map by marking at least three points in the Geo-Database. Starting with a common seed address (depending on the resolution of the noise map), the calculation core rasterizes the calculation area and establishes the absolute elevation of the receivers. When multiple noise maps are calculated for adjacent areas, the maps will fit together and the contour lines will go seamlessly from grid map to grid map.

The calculation area is loaded in the calculation core and the elevations of the grid cells are established using a triangulated surface.

SoundPLAN hosts all calculation information in a spreadsheet. All parameters are recorded and are readily available to repeat the calculation with modified parameters or modified data. To save calculation time, SoundPLAN uses grid interpolation to calculate only the necessary receivers, and interpolates the receivers in between. The estimated total and the remaining calculation time is shown during the calculations. You can continue work on your PC as if nothing were running in the background. This allows you to prepare data or edit plots, etc., parallel to calculating receivers. For really big noise maps, the module Distributed Computing dispatches the calculation load to PCs on the windows network.

Last modification: 15 June 2005