Levels of Evidence in Transport Research

This article is an attempt to analyze the issue of the level of scientific evidence presented in broadly understood transport research. Various classifications of levels of evidence (LOE) have been formalized in the scientific literature and are reviewed in this article. They help assess the importance (rank) and quality of publicly presented scientific studies. On their basis, the recipient of scientific content forms an opinion on its usefulness and credibility. Not all LOEs are used in transportation studies. Those that are used are used with different frequencies. In this article, the authors analyze the problem of why more and less popular methods can be observed in scientific research in transport. The article tries to explain why transport research is currently being conducted in this way and, above all, whether it is possible to change the observed state of affairs in this matter.