Defining and Measuring Aircraft Delay and Airport Capacity Thresholds (2014) / Chapter Skim
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Pages 38-46
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From page 38... ...
38 Airport capacity is a measure of the maximum number of aircraft operations that can be accommodated on the airport or by an airport component within a given period of time. The context of this report is airside or runway capacity.
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39 departure-priority capacity is calculated. The ACM produces hourly capacity at varying arrival-departure ratios.
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40 models output delay estimates (described in Section 2.2.2) , so a threshold value for "acceptable delay" is pre-determined, then when that level of delay occurs in the model, the corresponding demand level is reported as the capacity.
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41 the ratios of certain hours per year under certain conditions) is not be useful because it would typically either overstate or understate the actual capacity on any given day.
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42 a metric of capacity, especially if the landside facilities are more of a constraining factor than are the airside facilities. This would be described as annual enplanements or million annual passengers (MAP)
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43 this table, capacity at several airports is reduced by 5-10% in marginal weather conditions, as compared to optimal conditions. Then when in IFR rules, the capacity is only 60-80% of optimum capacity.
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44 tions used throughout the day. For example, when the cloud ceiling lowers for a few hours during the day, an airport may lose the ability to use certain runways, which reduces capacity.
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45 utes. Some have used a different average delay value for arrivals than departures; for example, 3 minutes average delay for arrivals and 6 minutes average delay for departures.
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46 higher capacity, environmental concerns put constraints on the airport that limit the throughput. • Economics/business case vs.
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