Kek, Cheu and Chor Word count: 7447 words equivalent Relocation Simulation Model for Multiple-Station Shared-Use Vehicle Systems

Abstract: A shared-use vehicle system has a small number of vehicles reserved exclusively for use by a relatively larger group of members. Challenged by accessible and economical public transportation systems, multiple-station shared-use vehicle companies are driven to gain a competitive edge by using an operator-based relocation system to ensure privacy, simplicity and convenience to their users. To assist operators in identifying measures to maximize resources and enhance service levels, a simulation model is developed, with an emphasis on operator-based relocation techniques. A qualitative analysis conducted on operator-based relocation systems provides insights on the key issues involved and their influences over each other. Based on this analysis, a time-stepping simulation model is developed and three performance indicators are proposed to evaluate the effectiveness of the different relocation techniques. The model has been validated using commercially operational data from a local shared-use vehicle company. Using the existing operational data as the base scenario, two proposed relocation techniques, namely the shortest time and inventory balancing techniques, and various operating parameters are studied. The simulation results have shown that, if inventory balancing relocation technique is used, the system can afford a 10 % reduction in car park lots and 25 % reduction in staff strength