Precise and efficient software for noise prediction and dispersion of air pollutants. IMMI covers a very wide range of applications – from the simple immission prognosis in case of questions regarding neighbourhood noise up to noise mapping for entire countries. Depending on the assessment target and the applicable country-specific regulations, the required range of functions can be defined for the user. IMMI has a modular design, to create the best and most cost-effective package for every user.


For more information on IMMI or to request a quote, contact our team now:


The IMMI program consists of the base module, the element libraries (guidelines) and additional features. Depending on your field of activity, select the corresponding base module and the required guidelines to put together your individual equipment.
Every base module features the DIN 18005 element library and the Gaussian plume model for calculating the dispersion of air pollutants and dust (TA Luft 1986). Element libraries for noise and air pollutants can be added as desired to create a version tailored to your needs.

IMMI is:

  • Easy and efficient to use, i.e. you have access to all relevant functions via a self-explanatory user interface
  • Adaptable to the individual user and makes your work easier with its customisable user interface and reports
  • Accurate due to its quality-assured application of all propagation models that are relevant in immission control
  • A highly sophisticated software – 30 years of service, product development and work in standards committees speaks for itself

IMMI is available in four different base module versions:

IMMI Basic

… is the cost-effective solution for those who need calculations with high accuracy and complete documentation of input and output data. The number of obstacles is limited to 200. However, the accuracy of the calculation and the completeness of the documentation do not differ from the following basic modules.

IMMI Standard

… is the convenient entry into the world of immission forecasting.  The standard version allows the easy processing of a large number of projects at an extremely favourable price-performance ratio. With the limitation to 1,000 obstacles, up to 500,000 diffraction edges can be calculated in one project. The addition of further performance features enables an additional increase in productivity


… is the universal program package with which almost all projects can be calculated, evaluated and presented. For this purpose, IMMI Plus offers a variety of options that support the user in their work in an optimal way. With 3,000 obstacles, up to 1,500,000 diffraction edges can be successfully calculated in one project.

… is the professional tool for creating large area noise maps with an excellent price/performance ratio. The equipment leaves nothing to be desired and is specially designed for the management of large amounts of data. This package knows no limits in the number of elements or obstacles and additionally includes the options for distributed and segmented computing in the network.

These four versions do not fit your needs? No problem!

Contact us and we will quickly find out what your exact needs are and will be happy to offer you a package tailored to your needs.




Precise and efficient software for noise prediction and dispersion of air pollutants

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