Queueing Theory is a field of study under Operations Research dealing with queues or waiting lines. It helps manage the queues and resource requirements by building a predictive model for waiting times and queue lengths.
An application-oriented question on the topic along with responses can be seen below. The best answer was provided by Pradeepan Sekar and Sourabh Nandi. Applause for the joint winners.
Also review the answer provided by Mr Venugopal R, Benchmark Six Sigma's in-house expert.