Analytical expressions for the calculation of damage percentage using the probit methodology

Abstract In the modelling of accidents, difficulties arise when introducing data from figures and tables into a computer code. In order to solve this problem in relation to the estimation of the consequences of an accident on the population, analytical expressions for converting Probit variables into probability percentages and vice-versa, are presented. The results obtained have been compared with the results found in tables and figures from references. Very good agreement between the commonly used values and those obtained from the analytical expressions has been found.