Main data sources : ICAO, Flight Global
The 15 selected criteria contributing to general safety have been computed to construct one single composite indicator. Most of classical rating and ranking systems used various scoring systems. However, scoring procedures are unable to manage both quantitative and qualitative data. Furthermore, very different profiles could lead with similar scores, depending on the use of potential weighting systems, which are always arbitrary and subject to caution.
Our approach is a multidimensional analysis based on the principle of mathematical projections. Each of the 15 criteria represents one dimension, and all dimensions are projected into one or more dimensions to construct the composite indicator. This approach belong to a set of methods known as factorial analyses.
Although the statistical processing of data tables and the matrix calculation principle were already described in the 19th century, this scientific approach was mainly published during the 1960-1990 period by French mathematicians data analysis school. Although it is essentially used in the socio-economic and engineering fields, this approach makes it possible to analyze all types of complex databases, thanks to the development of computer technologies. In particular, the ability to manage and synthesize a large set of criteria makes this method very useful in risk assessment. For example, similar techniques have been successfully used by international organizations such as the World Health Organization, to assess epidemic risk and rate priorities for immunization programs (Weekly Epidemiological Record. 2007 May 4;82(18):153-60).
Mathematical multi-criteria analyses have been selected by ATRA for the following reasons:
– management of both quantitative and qualitative variables
– no arbitrary weighting system
– meaningfulness of results
– reproducibility and objectivity
ATRA has developed a unique experience and expertise in scientific multi-criteria analyses and risk assessment, allowing to generate innovative meaningful information in the aviation world.