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Area of Designated Land Use

Areas of different land use allow for the description of the designated land use in accordance with the Land Use Ordinance. Points within such areas can thus be assigned the standard levels for the different types of noise (menu Options|Land Use). This feature allows you to adopt the types of designated land use for the entire CadnaA project directly from development plans, and to calculate sensitivity maps. This leads to conflicting maps where the differences between the rating levels calculated for each type of noise and the standard levels, as per the designated land use, are calculated.

CadnaA can also automatically assign the pertinent standard levels to all receiver points lying within a defined area of land use. The prerequisites are

  1. that the check box „Determine from Areas of Land Use“ is activated in the edit dialog of the receiver point and

  2. an area of designated land use is inserted in which the receiver points are included.

Enter the borderlines of the areas of designated land use after clicking the icon on tool box.

In the edit mode double-click the borderline of the inserted area and select the type of land use from the list box.

Population / km²

The function Population Density allows CadnaA to approximate the population density from the buildings, and to assign it to the areas of designated land use (see Population Density).

Monetary Data

A technique to evaluate the noise is described in the Swiss BUWAL study MIEDEMA-2005. This method is implemented in CadnaA (see Monetary Evaluation according to BUWAL).