**3. Conclusions**

The investigation of rail vehicle running dynamics plays an important role in the more than 200 year development of railway vehicles and infrastructure. Currently, there are a number of new requirements for rail transport associated with the reduced environmental impact, energy consumption and wear, whilst increasing train speed and passenger comfort. Therefore, the running dynamics of rail vehicles is still a research topic that requires improved simulation tools and experimental procedures. We would like to thank the authors of the papers included in the Special Issue "Running Dynamics of Rail Vehicles" in the journal *Energies* for their contribution to this topic.

**Author Contributions:** The authors contributed equally to this work. All authors have read and agreed to the published version of the manuscript.

**Funding:** This editorial received no external funding.

**Acknowledgments:** We thank the authors of all papers published in this Special Issue for submitting their excellent works. Additionally, we would like to thank all the reviewers for their recommendations and comments, which have improved the quality of this Special Issue. We are also grateful to MDPI for the invitation to act as Guest Editors of this Special Issue and to the Editorial Board of "*Energies*" for their kind co-operation, patience, and involvement in the preparation of this Special Issue.

**Conflicts of Interest:** The authors declare no conflict of interest.
