Chapter 88

Queuing theory: The mathematics of waiting in line

Questions answered in this chapter:

  • What factors affect the number of people and the time we spend waiting in line?

  • What conditions should be met before analyzing the average number of people present or the average time spent in a queuing system?

  • Why does variability degrade the performance of a queuing system?

  • Can I easily determine the average time a person spends at airport security or waiting in line at a bank?

We have all spent a lot of time waiting in lines (Mickey Mouse demands it), and you’ll soon see that a slight increase in service capacity can often greatly reduce the size of the lines you encounter. If you run a business, ensuring that your customers do not spend too ...

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