Driverless cars are on the way. This technology, allowing more accessible, dynamic and intelligent form of Shared Mobility, is expected to revolutionize urban mobility. One of the conceivable transport service based on this technology is Robo-Taxi. The success and competitiveness of future Robo-Taxis depend on its operational models, which require intrinsically knowledge about the service demand, configuration and the fleet specification. This poster wich win the prize in poster competition in the Doctoral School INTERFACES (University of Paris-Saclay), presents approaches, challenges and a framework for simulation of futur Robo-Taxi services.