Wölfel Measurement Systems IMMI Noise Mapping and Prediction Software

IMMI is software specifically designed for noise prediction and noise mapping. All national European and international noise prediction norms and methods of importance are implemented in a convenient user-friendly and practical working environment. Backed with more than 20 years of experience, the software is a field-proven, tested solution to environmental impact studies, noise abatement planning, environmental noise expertise and research. As a practical tool it unburdens the user of routine tasks, leaving his head clear for analysis and planning.

IMMI has been designed with modularity and object-oriented techniques in mind. It can be tailored to suit the need of any particular noise related problem. And the user-interface remains unchanged.

       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 ...

  If you'd like any further information then don't hesitate in giving us a call or dropping us an e-mail



New IMMI 2015 now available!

The new international release of IMMI is now available. Many major updates to various libraries and we can fully offer the newly introduced CNOSSOS-EU library. Databases have been updated to the latest information. Changes have been made to increase the ease of use. Please click the following link for all the changes:

IMMI 2015 What’s new?

Since 1986, Wölfel Meßsysteme · Software is busy in the Noise and Air Pollution Mapping market. Wölfel's fully self-designed IMMI software is a major player in the market. IMMI is a software package for Environmental Pollution Mapping that integrates air dispersion modelling (gases, dust, odours), outdoors sound propagation (road traffic, railway, industrial and recreational noise) and interfaces to CAD and GIS packages.

IMMI is used by professionals working with public authorities, consulting engineering companies and the industry.

IMMI has evolved into a vertical GIS. IMMI’s proven and comprehensive working environment is characterised by the following main features:

  • Calculation of (mainly) outdoors propagation of noise in compliance with national and international (ISO/EU) noise calculation standards/methods.
  • Calculation of dispersion of air pollutants in compliance with Austrian and German air pollution calculation standards.
  • Works with fully geo-referenced data.
  • Interpolation and drawing of contours, filled coloured or gray-shaded contours, isolines, etc.
  • Calculating digital terrain models using original data or applying optimisation algorithms.
  • Presenting results in electronic form, numeric/text tables and coloured maps.
  • 2D and (animated) 3D visualisation of pollution maps and clippings.
  • Interfacing with horizontal GIS applications, especially the ESRI ArcGISTM family of products, MapInfoTM and GoogleEarthTM.
  • Distributed calculation of pollution maps on networked and multi-core computers.
  • Use of meteorological data.

IMMI is suitable for all project-scales from small to medium-scale studies (such as: environmental impact assessment, permitting, etc.) up to the very large-scale applications covering entire agglomerations and regions.

More detailed information

The combination of software calculation and mapping with measurements is possible: EMS is based on the combination of IMMI with permanent monitoring systems for sound level and air pollution concentration measurements.

Head Office: PC Environmental Ltd, Units 1&2 Claylands Road. Ind.Est., Claylands Road, Bishops Waltham, Southampton SO32 1BH UK

Tel: +44 (0)1489 891853                                                  Fax: +44 (0)1489 895488                                          E-mail: info@pcenvironmental.co.uk