Toolbox for the Noise Management

Collects and provides all necessary data to make noise predictions
weapon data, acoustical source and propagation data, topographical data, facility data, operation data, assessment data

Performs noise prediction calculation
geometric spreading, air absorption, terrain shielding, influence of forest, dwellings and water areas, wind direction and strength

Supports the planner to assess an occupancy
collects operational data clearly laid out, a simple yes/no indicator whether the occupancy meets the rules, helping information if the occupancy is too noisy

Presents noise criteria to the planner
maps for each noise indicator, maps for the peak pressure limit, relevant number of days overstepping the guidance levels for each grid area

Calculates noise contour maps for land use planning
noise contour of the 5% quantile, printing and detailed automatic documentation.

Documents the noise managing process
WinLarm projects always contain all information on noise management and noise maps in one file, easy to store, easy to maintain, automatic safe system

Noise prediction strongly depends on good and reliable input data.
At the time being, WinLarm’s  weapon base contains more 7.000 ‘shot configurations’, a combination of weapon system, weapon, propellant and projectile or ammunition respectively.
It is clear that the acoustical source data are validated through measurement only for a small  group of weapons, preferably weapons of the German forces.

Normally, WinLarm’s friendly system finds reasonable substitute values. However, this system is deigned to tend to overestimating for example the source data.
It is recommended to provide measured data whenever possible.

The WTD 91, Meppen, is in charge to measure weapons and to maintain the acoustical input the data for WinLarm.