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Related to queuing: Queuing theory, Priority queuing


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.


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.

References in periodicals archive ?
Each mesh router is assumed to be a station in the queuing network representation.
Some of the retailers that have implemented queuing lines have installed fixtures that allow them to merchandise various kinds of products to tempt waiting consumers.
Queuing is not as effective as market prices at allocating a good to those who value it most.
Good estimated wait time calculations are very important to a virtual queuing strategy, and it's important to note that there is no "one formula fits all" for contact centers.
Queuing only optimizes command re-ordering if a queue of requests is built up in the drive.
Well, come to think of it, there was another story involving queuing that caught my eye recently.
While I wouldn't pay anyone to queue for me, I'm thinking of offering my services - but only at prestigious queuing events.
The company's revolutionary queuing solutions have been proven to increase customer satisfaction by up to 96 percent, provide opportunities for multimedia advertising and promotions, and also maximize revenues per square foot reducing the number of customer 'walk-aways' by up to 96 percent.
When I tell people I'm an expert on queuing usually they'll come up with their own problem, such as at a supermarket, a petrol filling station or a bank.
Queuing at airports makes us feel secure - home from home - as though we're not really going away and leaving the post uncollected, the plants without water and the video player pre-set to record Countdown.
The National Scruples and Lies Survey, carried out to examine the condition of British morals, discovered that the tradition of queuing is now defunct.
Because IP-optimized DSL concentrators keep packets intact, they can act on packet-header information to make intelligent forwarding and queuing decisions.