A Diploma Thesis titled “Investigation of the impact of weather conditions to young drivers’ behavior and safety in cities with the use of driving simulator” was presented by Maria Chaireti in November 2017. In order to achieve this objective, an experimental process on a driving simulator was carried out and regression models were developed to investigate the impact of weather conditions on the mean speed, the lateral position of the vehicle from the right borderline and the accident probability. The models’ application indicated that driving in the rain contributes to a small reduction in speed, but also to a significant increase in the probability of an accident. When driving in fog, drivers seem to be more cautious, as the lateral position of the vehicle from the right borderlines reduced and the probability of an accident decreased.