A real plus for people and the environment


Note: The new version, SLIP'20, is available: faster, SonRoad18 (preview), meteorological effects and more!


SLIP - Environmental noise prediction software

SLIP is a powerful engineering software for the calculation and presentation of environmental noise. The program is well established in Switzerland, and is constantly improved and adapted to the increasing demands of the practice and the needs of the users.SLIP - Environmental noise prediction software

The following calculation models are implemented in SLIP'20 (full version):

  • Road noise: SonRoad18NEW, StL-86+ extended with reflectionsIMPROVED and tunnel portal;
  • Railway noise: SEMIBEL extended with reflections and tunnel portal;
  • Point and area sources: propagation according to ISO 9613IMPROVED.

Meteorological effectsNEW can be considered in calculations based on ISO 9613 (incl. SonRoad18).

SLIP is currently available in German and French.

System requirements: Windows ≥7, 64 bit; ≥4 GB RAM.


See also