Products
IMMI - The Noise Mapping Software
IMMI covers a wide range of applications ranging from noise mapping to air pollution modelling. IMMI integrates both noise and air pollution in a single software package. In this section we will concentrate on the features of IMMI specifically designed for noise mapping and noise prediction. In these fields, IMMI is one of the leading packages worldwide. With its modular design and price-list, IMMI can be tailored to the user's needs and budgets - ask for details.
IMMI is continuously adapted to meet the requirements of evolving regulations and standards. Depending on the calculation method, IMMI calculates Leq, Lday, Levening, Lnight, Lden, LAmax, L10 and other sound or statistical indicators. Currently IMMI can be equipped with
- noise
calculation methods for road traffic noise, railway traffic noise, air transport noise and industrial/recreational noise - more than 20 national and international noise calculation methods
Noise Mapping gained additional importance with the arrival of Directive 2002/49/EC relating to the assessment and management of environmental noise. IMMI is equipped with a full set of functions to produce Strategic Noise Maps of major roads, major railways, major airports and major agglomerations.

- IMMI - Transport Noise Mapping
General Program Features
- Data input: mouse, keyboard, and digitising tablet, or import functions for a series of file formats.
- Import and export via DXF and ArcGIS Shape files
- Annotation and illustration of site maps: Scale bars, photographs, labels, text fields
- Export of all lists and pollution maps
- 3D View ...
For further information see
Log-In area.
Noise propagation calculation methods according to 2002/49/EC: Road Traffic Noise: XP S 31-133/NMPB+Guide du Bruit - Railway Noise: RMR-SRM II-1996 - Industrial Noise: ISO 9613-2 - Aircraft Noise: ECAC. CEAC Doc. 29 and all European national methods.
Special acoustics features
- Calculation in either overall A-weighted levels or frequency-dependent in octave or third-octave bands.
- Difference maps: compare the noise impact of different planning scenarios.
- Energetic and arithmetic addition and subtraction of noise maps.
- Databases of noise spectra and transmission loss/absorption spectra.
- Façade level calculation.
- Calculation of noise levels and peak levels at single receiver points and grid receivers ...
For further information see
Log-In area.
Packages and language support
IMMI is available in any of the three following
packages, each of which carries a different price tag and more or less feature
- IMMI Standard is a comfortable entry-level into the world of noise mapping.
- IMMI Plus is the next step upwards to model, calculate, analyse and present projects of varying size.
- IMMI Premium is the ultimate professional tool for noise prediction and large-scale noise mapping.
The IMMI user-interface is available in a variety of languages: English, French, German, Italian, Dutch and more to come. IMMI help system and manuals are available in English and German.
IMMI 2009 is the latest in the family of IMMI releases. New features:
- Calculation Control Centre
- further enhancements of the 3D-Viewer
- expanded noise emission databases
- hot-spot analysis using %Highly Annoyed and %Highly Sleep Disturbed
- any many more
For further information see
Log-In area.

