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Baggage Claim Model Baggage claim facilities are required for both domestic and international passengers. The fol- lowing sizing methodology is primarily focused on domestic passengers; however, many of the principles apply to international baggage claim as well. Domestic baggage claim requirements are typically based on design hour deplaned O&D passengers; the concentration of these arriving passengers within a 20-minute time period; and, to a lesser extent, on checked baggage per passenger ratios. Observations at most U.S. airports indicate that the majority of domestic passengers arrive at the baggage claim area before their bags are unloaded onto the claim units. The result is that the claim unit frontage should be sized for the estimated number of passengers waiting for baggage, because most bags are claimed on the first revolution of the claim unit. The number of passengers actively engaged in claiming bags is also related to the average traveling party size, because with larger family groups, not all of the party will actually be at the claim unit picking off bags. Industry consensus is that all passengers actively claiming bags should be either adjacent to the claim unit (LOS A & B), or no more than one person away from the claim unit and able to reach in/around to the claim unit when his/her bag is presented (LOS C). This guideline results in a claim frontage of 2 to 3 feet per person (LOS A & B) to 1.0 to 1.5 feet per person (LOS C) for those actively claiming bags. For international baggage claims, bags may be unloaded to the claim units before passengers arrive, if adequate passport inspection (CBP primary) processing is not available. Such an event will increase the time a claim unit is occupied by a flight and may require claim units to be sized to accommodate nearly 100% of the number of bags on the flight. The FIS/CBP spreadsheet model also includes a Baggage Claim model that provides a tool for assessing the timing of passenger and baggage arrival at the claim unit. The Baggage Claim model takes the user through two standard approaches to size total bag claim frontage and the claim units for individual flights. The spreadsheet model is arranged in the same manner as the other models with color-coded cells and links to both the Table of Contents for the whole spreadsheet model and the User's Guide as seen in Figure 66. Total Design Hour Demand Figure 67 shows the section of the model that calculates the overall frontage demand based on the peak period of terminating passengers. This number can then be compared to the existing frontage and a first hand observation of the use and adequacy of the baggage claim area. The Bag- gage Claim model follows the method described above. The user must determine and input the passenger and baggage relationships for the design hour. The cell comments will help to make a general or default decision when specific data can not be found. 52