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An ordered collection of persons or things in which one is serviced after another. For example, persons may form a queue to buy tickets to the cinema. Likewise, an employee may form a list of tasks to be done each day and perform them each in turn. The word queue is most common in Britain and the Commonwealth; the equivalent in American English is waiting line or simply line.
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the build-up of customers who are delayed while waiting for service. Queuing can occur in a retail outlet where shoppers queue at supermarket checkouts or cars queue on petrol station forecourts. Similar queuing problems occur in factories where components queue to be processed on machines.

Variability in the demand for service and the variable time to complete service makes it difficult to judge the level of service to provide for customers. Where numerous service channels are provided, customers will experience few delays even when many customers arrive simultaneously for service. On the other hand, providing numerous service channels involves large labour costs, as in the case of supermarket checkout staff or bank clerks, or large investment in physical facilities, such as tanker berths or airport runways.

Queuing models employing statistical techniques can be used to analyse queues and to balance the cost of resources used to provide service against the cost of the time lost by customers while waiting for service.

These models consider the number of potential customers; the likely rate at which they arrive; whether they arrive singly or in batches; the number of parallel queues; maximum queue length; order of service (first come, first served or prioritized); number of servers; likely service time; and whether customers are served singly or in batches. For complex queues, SIMULATION techniques may be employed to decide the level of service to provide and how to organize the service facilities. See BALK, MULTIPLE CHANNEL-SINGLE PHASE.

Collins Dictionary of Business, 3rd ed. © 2002, 2005 C Pass, B Lowes, A Pendleton, L Chadwick, D O’Reilly and M Afferson
References in periodicals archive ?
(1) The headway of queued vehicles is affected by the queuing position.
In addition, each queued command is assigned a unique tag value used to identify any outstanding commands between the host and the device.
She said: "We queued for just over two hours to get in then a bit longer for the stuffing machine, but they were offering ready stuffed ones if you didn't want to wait longer.
"But everyone who queued looked pretty happy when they left the estate agents."
I go to all the kit launches and I queued up for 28 hours in May for the launch of the home strip.
As a Cardiff University professor makes the science of queuing his speciality, we asked: what's the longest you've ever queued?
WESTLIFE fans queued overnight in the pouring rain to get a chance to meet their idols.
We queued for rations in the war, water in the 1976 drought and we still do a lot of it in the post office - a place where all Brits are sent at an early age, on some spurious errand, to be schooled in the habit of a lifetime.
Or rather, given the inevitability of the fest, queue, queue, queue, as we return all those unwanted presents which our nearest and dearest previously chose and queued to buy for us.
SLEEPING BAGS lined the streets outside the Hutton Inquiry today as people queued through the night to see Tony Blair give evidence.
Many people queued up for several days to buy the ex-service homes at RAF Valley, Anglesey.
Hundreds of Blues fans queued for more than two hours to get tickets for the play-off match which could see their team win promotion to the Premiership.