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Baggage Claim Model 53 Figure 66. Example of Baggage Claim model. The following factors are required for estimating the total claim unit capacity for the design hour: · The number of design hour deplaned passengers. · The concentration of passengers arriving within a 20-minute period. · Percentage of passengers terminating at this airport. For international airports this is typically 100% because all passengers (except those in-transit) must clear CBP inspection at their first point in the United States. Connecting passengers then re-check their bags to their final destination. · Percentage of passengers with checked bags. This number does not include carry-on gate- checked bags for regional aircraft which are claimed plane side. · Average traveling party size. It has been observed that not all members of a traveling party (especially families with children) will actually be at the claim unit. Typically one member will claim the bags with most of the other members waiting in the peripheral area. The spreadsheet model estimates this by calculating the number of traveling parties, taking one member to actively claim bags, and then adding in a percentage of the "extra" passengers who may accompany the active claimer at the claim unit. These factors would be based on passenger survey data (party size) and observations. · The active claim frontage per passenger to achieve the desired LOS. The total claim frontage combined with claim size for individual flights (Figure 68) can be used by the planner to determine the number and sizes of claim units needed for the current mix of design hour aircraft. Single Aircraft Arrival The same basic approach is used to estimate the amount of claim frontage for a single aircraft arrival. In this method, aircraft seat and load factor assumptions of an individual flight are substituted for the design hour deplaning passengers and the percentage of arrivals in the peak 20 minutes. See Figure 68. Once the total frontage is estimated, the size and number of claim units should be determined based on the expected number of flights and aircraft sizes during the design hour(s), and airport operating policies regarding exclusive or preferential use of claim units. Figure 67. Example of demand input.