Transient Behaviour of the Mean Waiting Time and Its Exact Forms In

The qualitative natures of the transient behaviours of the waiting times in a GI/G/l system are studied first, when the waiting time of the initial customer is v. For instance, it is shown that the mean waiting time is increasing in n only when v < l for some l. Next this paper gives a way of calculating exact values of the mean waiting time of the n-th arrival in M/M/l and M/D/l and further proposes a simple scale of the rate of convergence to the equilibrium state.