1. Nottingham Transportation Engineering Centre (NTEC), University of Nottingham, Nottingham, UK
2. Dipartimento di Ingegneria, University of Palermo, Italy, IT
3. Department of Transportation Engineering, Polytechnic School, University of São Paulo, São Paulo, SP, Brazil
4. University of Belgrade, Faculty of Civil Engineering, Belgrade, Serbia
5. Department of Civil, Industrial Engineering (DICI), University of Pisa, Pisa, Italy