A Diploma Thesis titled “Investigation of Messinia drivers attitudes towards road safety” was recently presented by Nektaria Salem. This Diploma Thesis was based on drivers choices on road network safety upgrade of Kalamata – Pilos axis. The stated preference method was used for various scenarios of time travel and cost. A logistic regression mathematical model was developed describing drivers’ behaviour based on their characteristics and those of the road networks. From the analysis it was derived that the probability for a driver using a safety upgraded road network over the existing one, depends on travel time and upgrade cost, as well as on gender, age, occupation, education and income of the driver.