One of the major issues in intelligent transportation system (ITS) is fleet management. This paper proposed a dynamic fleet management algorithm for cybercars, which are road vehicles with fully automated capabilities. A fleet of such vehicles forms a transportation system called CTS (cybernetic transportation system), for passengers or goods. This paper presented an architecture for CTS' operation and fleet management. An algorithm based on queuing theory is proposed for dynamic fleet management of cybercars, which can respond to random requests. Simulation experiments demonstrated the effectiveness of the proposed algorithm