1. Assistant Professor, Department of Rail Transportation and Bridges Structures, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Gdansk, Poland (corresponding author: , )
2. Professor, Department of Rail Transportation and Bridges Structures, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Gdansk, Poland
3. Assistant Professor, Department of Rail Transportation and Bridges Structures, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Gdansk, Poland
4. Senior Lecturer, Birmingham Centre for Railway Research and Education, The University of Birmingham, Birmingham, UK