It considers a variety of purposes, to compare individually optimal (Nash equilibrium), socially optimal, the optimal class, and the optimal allocation of the flow facility. After introducing the basic design model, the book covers the arrival rate optimal model for single-facility, queuing one class or a dynamic algorithm to find the individual or the socially optimal level of arrivals and prices. Focusing on the network queue, the last chapters emphasize the qualitative nature of optimal solutions. Written by long-time, recognized researcher on the model for optimal design and control of queues and queuing networks, this book frames the issue in the general settings queue system.