Evaluating Airfield Capacity (2012) / Chapter Skim
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Pages 90-98
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From page 90... ...
88 Subsequent Uses of Airfield Capacity Estimates Airfield capacity alone is a very useful performance metric, but its real value can only be realized by comparing it with existing and future demand for aircraft operations in subsequent applications. Many and diverse applications of airfield capacity information are available in the aviation industry.
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From page 91... ...
Subsequent Uses of airfield Capacity estimates 89 with the ADPM peak hour should ensure that sufficient capacity is provided for most days of the year, recognizing that there may be periods during very busy days when delays, congestion, and queuing will occur. In some situations, selection of the ADPM peak hour is not appropriate for measuring demand and could result in an underestimation of demand at peak times.
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From page 92... ...
90 evaluating airfield Capacity Annual Airfield Demand-Capacity Comparisons For the majority of airports, comparing an estimate of annual airfield capacity with estimates of annual demand for aircraft operations is sufficient to determine the need for airfield improvements. The annual capacity of an airfield does not equal hourly capacity multiplied by 24 hours in the day and 365 days in the year.
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From page 93... ...
Subsequent Uses of airfield Capacity estimates 91 reporting the estimated airfield capacity in a master plan or system plan will most often satisfy any requirements for airfield capacity analysis and facility requirements. For airport master planning and system planning, capacity estimates are typically required for a wide variety of facility and procedural alternatives.
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From page 94... ...
92 evaluating airfield Capacity Balancing Airfield Capacities with Passenger Terminal and Landside Facility Capacities At most airports, the capacity of the airfield system determines the ultimate capacity of the airport. However, prudent planning requires that airfield capacity be balanced with the capacities of other airport components, such as the terminal complex, ground access roadways, and the cargo complex.
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From page 95... ...
Subsequent Uses of airfield Capacity estimates 93 Such demand-management measures in the United States were initiated in 1968 when FAA issued the High Density Traffic Airports Rule (HDR) (14 CFR Part 93 Subpart K)
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From page 96... ...
94 evaluating airfield Capacity an airport under a given set of operating conditions. The FAA Pilot/Controller Glossary defines these rates as follows: Airport Arrival Rate (AAR)
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From page 97... ...
Subsequent Uses of airfield Capacity estimates 95 typically defined in terms of a threshold (or acceptable) level of average annual aircraft delay (e.g., 7 minutes per aircraft operation)
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From page 98... ...
96 evaluating airfield Capacity • 6 to 8 Minutes of Delay per Operation. Increasing VFR delays in peak hours; increasing delays and eroding operational reliability in IFR conditions; high sensitivity to operational anomalies.
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