Individual Papers 10. Mobility as a Service and the changing role of road network operators KANG SEONG-CHEOL IP0071, BARRIERS AND OPPORTUNITIES FOR IMPLEMENTING MOBILITY AS A SERVICE: A TALE OF TWO CITIES IRAVANI HAMID IP0309, KEY TRANSPORTATION SYSTEM CHARACTERISTICS FOR SUCCESS OF MOBILITY-AS-A-SERVICE (MAAS) BOUTIN CHRISTOPHE IP0533, ENVISAGER ET CONCEVOIR L'AGGLOMÉRATION PARISIENNE AVEC DES VOIES PARTAGÉES.