WTG Noise 1.2.3–1.2.6 – clear separation between editions of ISO 9613-2

Clear separation between editions of the standard. For calculations according to PN-ISO 9613-2:2002 (ISO 9613-2:1996), the assumptions of Annex D of the 2024 edition are not applied, and the dialog, report and result files contain no references to the 2024 edition.

ISO 9613-2:2024 edition: ground factor G limited to 0.5 (Annex D.4), terrain screening always with the limit from Annex D.3, valley correction (Annex D.5) always applied.

2002 edition: a G value above 0.5 is highlighted in red.

Default source cut-off distance: 10 km.

Report: for the 2002 edition with a terrain model, it explains why noise contours behind hills may locally appear discontinuous.