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Analysis and Implementation Considerations 21 Issues to Consider 1. Use Criteria. Airport operators need to determine whether common use should be manda- tory or voluntary, what happens if an airline fails to meet the minimum use, give-back criteria and take-back criteria (e.g., some airport operators have worked with the airlines to define conditions so that airlines can give back common-use facilities if the airlines no longer wants them; however, airport operators should determine if this approach will be appropriate for their airports or if take-back criteria will be better or some combination thereof), and expan- sion of use (e.g., how will airlines be allowed to expand their operations into additional com- mon use facilities if needed). 2. Use of Airline Assets and Equipment. In general, airlines prefer to maintain the right to use proprietary applications or equipment under prescribed conditions. There can be valid situ- ations where an airport operator may wish to allow the use of airline proprietary equipment at a common-use location. 3. Preparation of Policy and Procedural Documents. Airport operators noted the need for the preparations of policy and procedural documents to help with the planning and operation of common use. Some of the documents may already exist; others would be specifically estab- lished for common use. Design and Construction This section provides information needed by the airport operator in incorporating common use in a design and construction project. This section considers design and construction to be the physical addition of a new gate, concourse, or terminal which requires the use of professional engineers, architects, and licensed contractors. The information in this section is built on in sub- sequent sections of this chapter. This section discusses the following: Initial Design--First steps airport operators should consider when incorporating common use in design projects. Design Cycle--How incorporating common use in the design phase affects the design of the project. Construction--During construction, elements of common use must be monitored and considered and decisions must be made so that the construction project is not affected by schedule delays. Testing and Commissioning--Important testing and commissioning items to be considered during a construction project. Note: Detailed information on each of these operational areas can be found in Appendix B2. Initial Design Description The initial design phase is the phase of a construction project that must be completed prior to the actual designers and constructors being hired. This phase sometimes includes the cre- ation of a design narrative, a set of requirements, or some type of document to convey infor- mation to the team that will design the project. This is also the phase where the delivery method is chosen (e.g., design/bid/build, Construction Manager at Risk, and other delivery methods). Issues to Consider 1. Coordination with Airlines. Coordination with the airlines operating at the airport is paramount (see Figure 3-3). In many cases, it is not just the airlines that will be initially

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22 Reference Guide on Understanding Common Use at Airports Figure 3-3. Coordination with airlines. affected by the construction project, but all airlines operating at the airport, because a move toward common use can affect other areas of the airport not considered part of the original construction project. Airlines should be brought in early in the initial design process so that their needs and requirements can be identified. The design manager should coordinate with the airline station, corporate, and IT personnel--all will have input for the initial design considerations. 2. Airport Culture. As discussed in the Planning section of this Chapter, the airport operator's culture will need to be considered, and possibly changed, to implement common use success- fully. The airport operator's culture also can affect how decisions are made--ultimately, the culture of each airport will affect how and if a decision to include common use in the design project will be made. 3. Goals for the Project. Not all construction projects lend themselves to include a common- use element. The team must identify the goals of the project and determine if these goals can be met implementing common use or not. If the project is not addressing passenger process- ing, then there probably is no effect on common use. If the project is to increase, or some- how affect passenger processing capacity, the airport operator should determine if common use will apply. 4. Non-Airport Influences. Many projects have outside influences that affect the overall project. These should be identified in the initial design phase. If outside influences are identified, and common use is considered, the airport operator must determine if these outside influences will affect common use positively or negatively. 5. Airport Master Plan. As a construction project is considered, the effect on the overall airport master plan and the airport layout plan should be considered. 6. Staffing. A staffing analysis should be performed to evaluate the need for IT specialists and other staff to operate and maintain the common-use system. Design Cycle Description The design cycle is the portion of a construction project when the engineers, architects, and other design disciplines work closely with the airport operator to convert the requirements, goals, and desires identified in the initial design phase into physical drawings and specifications for use by the construction contractor. This process usually is iterative, as the designers become familiar with the initial design and understand the goals of the airport operator.