On the Performance of a One-way Car Sharing System in Suburban Areas: A Real-World Use Case

In recent years, one-way car sharing systems have gained momentum across the world with their promise to encourage more sustainable urban mobility models. However, economic viability of car sharing is still uncertain due to high investment cost for station and fleet deployment, as well as high operation cost for fleet management and rebalancing. Furthermore, existing car sharing are typically confined to city centres with significant business and residential concentrations. In this study, we evaluate the performance of a novel one-way car sharing system that will be deployed in a suburban area of the city of Lyon using a detailed multi-agent and multi-modal transport simulation model. Data from a recent large-scale household travel survey is used to determine the travel demands on different transportation alternatives. We analyse the impact of different coverage constraints on the system capacity in terms of number of trips and vehicle availability. We also investigate the potential of user-based relocation strategies to increase the efficiency of the car sharing service. The model shows that: (i) the car sharing system is most sensitive to the infrastructure and fleet sizes, and (ii) user-based relocation does not have a significant impact on the total number of car sharing trips.