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A Proof for the Queuing Formula: L = λW

John D. C. Little

Case Institute of Technology, Cleveland, Ohio

Operations Research 1961

In a queuing process, let 1/λ be the mean time between the arrivals of two consecutive units, L be the mean number of units in the system, and W be the mean time spent by a unit in the system. It is shown that, if the three means are finite and the corresponding stochastic processes strictly stationary, and, if the arrival process is metrically transitive with nonzero mean, then L = λW.

DOI
10.1287/opre.9.3.383
Volume
9 (3)
Pages
383-387
Language
en
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BibTeX
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