<p>Istraživanje faktora koji utiču na nastanak vanrednih događaja na železnici se uobičajeno zasnivaju na analizi internih faktora, dominantno ljudskih faktora.<br />Eksterni faktori koji mogu imati značajan uticaj na povećanje rizika od nastanka vanrednog događaja u dosada&scaron;njoj praksi nisu ustanovljeni i kvantifikovani sa stanovi&scaron;ta uticaja na realizatore transpornog procesa.<br />Regularno ustanovljavanje eksternih faktora i njihova metrika zbog toga predstavlja osnovni protokol za procenu rizika od nastanka i prevenciju vanrednih događaja.</p> / <p>The study of factors that influence the occurrence of railway accidents are usually based on an analysis of internal factors, the dominant human factors.<br />External factors that can have a significant impact on increasing the risk of railway accidents in current practice are not established and quantified from the point of impact on the implementers exchange transport processes.<br />Regular establishment of external factors and their metrics is therefore a basic protocol for assessing the risk of railway accidents and prevention of extraordinary events.</p>