The same dialog box can be reached via Change…, the title then is Change barrier instead of New barrier, the functionality is otherwise alike.

Find it here:

MOUS_ICO Menu: Noise > Barriers > New


MOUS_ICO Menu: Noise > Barriers > Dialog box… > New barrier


nco: Select a barrier (defined in Novapoint Noise)

MOUS_ICO Popup menu: New

In this dialog box, you define/change a barrier. A barrier is based on a polygon representing the mid line of the barrier. Then the program generates a polygon which is the outline of the barrier, based on the barrier width.




In the calculation method, it is the width at the top of the barrier that is taken into consideration, and therefore this is the width that should be entered. This implies that if a pointed mound is to be recorded, a width less than 0.5 meters should be entered, (even though it may be several meters wide at the base).


In the Nordic Calculation Method for Road traffic Noise of 1996, the absorption coefficient is not taken into consideration!


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