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Microsoft® Excel Data Analysis and Business Modeling by Wayne L. Winston

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Chapter 67. Queuing Theory: The Mathematics of Waiting in Line

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

  • Under what conditions can we talk about the average time spent in a queuing system or the average number of people present 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, and you’ll soon see that a slight increase in service capacity can often greatly reduce the size of the lines we encounter. If you run a business, ensuring that your customers do not spend too much time in line is important. Therefore, ...

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