1. CENIT-Center for Innovation in Transport; Jordi Girona 1–3, Office S120, Floor S1, Building C3, Jordi Girona 1–3, UPC–BarcelonaTECH, 08034 Barcelona, Spain.
2. Civil Engineering School, Office 114, Building B1, Jordi Girona 1–3, UPC–BarcelonaTECH, 08034 Barcelona, Spain.
3. Urban Transport Systems Laboratory, École Polytechnique Fédérale de Lausanne, Station 18, CH-1015 Lausanne, Switzerland.