We write r lm for the utilization of the buffer and require r 1 for the queue to be stable. Also W and Wq are the waiting time in the system and in the queue respectively. Under stationary and free traffic the queue lengths NGExxaverage 95 and 99 queue lengths at GE can be estimated as the product of the average queue length NGEat GE.
Parameters for 4 simplest series.
The formula for L in cell D9 is shown in the callout box. Then the average number of customers in the system is the weighted sum. The traffic light throws a dimension into this that we really do not need to consider because the queue is consistently solid for the whole mile for at least 15 of the. Queueing theory has its origins in research by.