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Unformatted text preview: customers, i.e., the loss probability.] b) How many customers are served every hour? Solution: The flow units are cars that come to be refueled, and the servers (resources) are the six fuel spots. 20 2% 1000 = cars need to fill in per hour. We have the following inputs time service average min/ 5 time al interarriv average min/ 3 20 min 60 6 = = = = = = car p car car a m a) We compute 667 . 1 3 / 5 / = = = a p . Then use the Erlang loss table to find that the probability that all 6 servers are utilized, 0.56%. = 0.0056 = (1.667) P 6 b) The flow rate is Flow rate=20 cars/hour *(1-0.0056) =19.888 cars/hour . / 888 . 19 ) 0056 . 1 ( / 20 hr cars hr car rate Flow =- = 1...
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- Fall '08