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What can you Use IMMI for?

• Calculating industrial noise

  IMMI supports you with any question in the field of industrial noise – from the calculation of a new supermarket according to TA Lärm, the assessment of sports or leisure facilities as well as the calculation and assessment of construction noise.

  IMMI facilitates the implementation of all current standards such as ISO 9613-2.

  As different as the existing industries in our world are, as diverse are the noise sources that can result from them. Building services installations, parking lots, loading processes, industrial plants, wind energy plants, public traffic, public address systems and more.

  For almost all noise sources, IMMI offers supporting functions and tools to facilitate modeling.

  Thus, the user interface allows even the inexperienced user to model different noise situations, from issues around neighborhood noise to the creation of noise maps of large industrial plants.

• Calculating traffic noise

  IMMI is best suited for the calculation of traffic noise according to 16. BImSchV or conveniently applicable in urban land use planning according to DIN18005.

  IMMI is ideally suited for the calculation of traffic noise accordingly to national standards and is convenient to use for structural planning according to EU-Directive 2002/49/EC – CNOSSOS-EU

  Probably no other type of noise affects as many people as traffic noise, especially road traffic noise. The extent of the noise sources and the fact that the guideline values are on average 5 dB higher than for industrial noise in specific countries means that traffic routes have a large radius of impact.

  Whether road, rail or waterway, we have mastered all traffic routes and this for almost all country-specific regulations.

  Especially in the planning of new traffic routes, IMMI can demonstrate its strengths: the fast calculation of large-scale models, the comparison of different variants, the input assistance for emission values or the automated height calculation of noise barriers – to name only a few advantages.

• Calculating noise in working areas

  The Indoor Module is ideally suited for the analysis of the noise situation in workspaces according to DIN 18041.

  The physiological and psychological impact of noise at work is one of the major causes of occupational illnesses. This makes the targeted planning of noise reduction measures in the planning phase of working rooms all the more important.

  Our Indoor Noise Module, which is available to all IMMI users free of charge, supports you in this area. As an addition to the geometric sound propagation model, you receive an easy-to-use tool for room acoustic design based on DIN 18041.

  The module is ideally suited for the analysis of the noise situation in factory buildings and for the determination of the sound propagation (SAK) according to VDI 3760. 

   

• Calculating aircraft noise

  IMMI’s Aircraft Noise Module was developed specifically to meet the requirements of aircraft noise prediction. 

  The noise characteristics of aircraft noise cause short but high level peaks, which can cause sleep disturbances for affected residents in the vicinity of airports. IMMI meets the requirements of the German Federal Environment Agency for a program for the calculation of noise protection areas at airports according to ECAC.CEAC.Doc. 29.

  • Calculation of the equivalent continuous sound levels for day (LAeq, day) and night (LAeq, night) as well as the calculation of the frequency-maximum level criterion NAT (Lp, Schw) and the wake-up frequency Nawr (DLR study) at immission points and in the grid
  • Modeling according to the DES data acquisition system
  • Import/Export via QSI interface according to DIN 45687
  • Emissions database of all aircraft classes (AzB 
    1975+1983+1999

    , DIN 45684-1, ECAC.CEAC Doc 29 3rd Edition, BUF) with APU application and taxiing traffic

  • Determination of the day protection zones 1 and 2 and the night protection zone according to the law on protection against aircraft noise
  • Import and evaluation of radar data (FANOMOS) and immission calculations from radar recordings 
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• Noise mapping and action planning

  Noise mapping according Directive (EU) 2021/1226 for road traffic noise, railway noise, industrial noise and aircraft noise (CNOSSOS-EU)

  The issue of noise emissions and immissions plays an important role in urban planning processes. You can use IMMI’s full range of features for corresponding investigations: the import of GIS data sets, automated segmented calculation in the network, the creation of calculation lists for comparison of different variants or exposure analyses.

  Probably the most challenging task is noise mapping according to the EU directive. IMMI has been and still is used successfully in numerous projects: whether for a city like Berlin, federal states like Bavaria or Baden-Württemberg, or for counties in the UK.

  The calculation of strategic noise maps for the noise indicators LDEN and LNight is carried out in 10 m increments and at a height of 4 m, separately for each type of noise. The exposure analysis for evaluation of the affected persons according to directive 2015/996 is realized by calculating facade levels. The performance features multicore, segmented calculation, and ACC – distributing the calculation in the network – are for the calculation of noise maps and facade levels on any number of computers ensuring short computing times.

   

• Calculating air pollutants

  With the Pollutant Module in IMMI, the dispersion calculation of gas, dust and odor is possible according to the particle model (TA Luft 2021/AUSTAL) as well as the Gauss model (TA Luft 1986).

  With the pollutant module, you can calculate the dispersion of gases, dusts and odours in a quality-assured, compliant and smooth manner.

  Air quality is directly related to human well-being. Despite positive trends, some air pollutants such as NO2 and PM10 still exceed the applicable limit values for the protection of human health. This makes it all the more important to have a reliable tool for modelling air pollutant distributions in order to calculate the dispersion of gases, odours and dusts.

  IMMI provides the current dispersion model – AUSTAL – for this purpose. On 14 September 2021, the new Technical Instructions on Air Quality Control (TA Luft) were published in the Joint Ministerial Gazette, No. 48-54. Permitting procedures must therefore be carried out in accordance with the new TA Luft from 1 December 2021.

  For this purpose, the Federal Environment Agency provides the reference implementation AUSTAL as a calculation kernel, which is fully available for calculations as of IMMI 2021 Update 01.

  It can be used to carry out a large number of immission control tasks such as pollutant dispersion in quarries, open-cast mines, construction waste recycling plants, biogas plants, plants for the production of wood pellets or odour immission forecasts in the vicinity of livestock facilities.

• Calculating glare effect

  IMMI for calculating the glare effect of photovoltaic systems

  With the programme package you can calculate the glare of solar plants/PV plants or other glare objects.

  Solar rays on PV systems can cause reflections and these can lead to dangerous glare. This impairs the safety of road users, especially in road traffic. In order to minimise this danger, the legislator stipulates that the glare effect of installations must be kept as low as possible structurally – this applies above all to solar installations that are often built near interurban roads.

  With the IMMI programme package for calculating the glare effect, you are given the opportunity to calculate and test various measures for minimising the glare effect as early as the construction planning stage for such installations. IMMI also makes it just as easy to optimise the glare effect of existing installations.