I-Simpa was initiated during research projects, some of them being funded by the French Environment and Energy Management Agency (ADEME), 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.
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...).
I-Simpa was created and is managed by Nicolas Fortin (developer) and Judicaël Picaut (team leader and senior researcher in the field of Acoustics) at the Environmental Acoustics Laboratory (LAE) of the French institute of sciences and technology for transport, development and networks (Ifsttar).
Ifsttar is a major player in the European research on the city and the territories, transportation and civil engineering.
Within this Institute, the LAE 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 LAE 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