[1] Silesian Tech Univ, Fac Transport & Aviat Engn, Dept Transport Syst Traff Engn & Logist, 8 Krasinskiego St, PL-40019 Katowice, Poland
[2] Univ Palermo, Dept Engn, Viale Sci Ed 8, I-90128 Palermo, Italy
[3] Univ Aveiro, Dept Mech Engn, Ctr Mech Technol & Automat TEMA, Campus Univ Santiago, P-3810193 Aveiro, Portugal