The project

The story

I-Simpa was initiated during research projects, some of them being funded by the French Environment and Energy Management Agency (ADEME) [involving other research partners: University of La RochellePprime Institute, Cerema], and by the French institute of sciences and technology for transport, development and networks (Ifsttar) [formerly the French Public Works Research Laboratory (LCPC)].

I-Simpa was first developed as a tool for the pre and post processing of data, when using acoustics calculation codes, used for example, in researches concerning the sound propagation in urban areas or in buildings. Because, many people were interested by I-Simpa, Ifsttar decided to distribute freely this tool, first as freeware, and now as an open source project.


The License

I-Simpa is distributed under the GPL version 3 license.



As an Open-Source project, volunteers can contribute to the project, in several ways (developing the code, contributing to the documentation...). 

Project team

I-Simpa was created and is managed by Nicolas Fortin (developer) and JudicaĆ«l Picaut (team leader and senior researcher in the field of Acoustics) at the Environmental Acoustics Research Unit (UMRAE) of the French institute of sciences and technology for transport, development and networks (Ifsttar).


The organisation

Ifsttar is a major player in the European research on the city and the territories, transportation and civil engineering.

 Within this Institute, the UMRAE performs research and developments and drives innovation in the fields of environmental acoustics. It intends primarily to provide responses to a major societal issue, aiming at reducing the exposure of citizens to noise, specially in urban areas.

One of the main goal of the UMRAE is to propose methods, software, guides, recommendations for assessing noise impact from road, urban and railway developments, and more widely from every infrastructure generating acoustic nuisance