Guidebook for Preparing Airport Emissions Inventories for State Implementation Plans (2013) / Chapter Skim
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Pages 17-25
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From page 17... ...
17 C H A P T E R 3 How to Choose an Approach for Computing an Airport Emissions Inventory for an SIP As discussed in Chapter 1, the primary aim of this Guidebook is to provide guidance in preparing airport emissions inventories of the U.S. EPA criteria pollutants (and their precursors)
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18 Guidebook for Preparing Airport Emissions Inventories for State Implementation Plans requiring less input data than the latter. Based on airport-specific operations, aircraft fleet mix and airfield operational data, this approach also relies on default databases within EDMS for aircraft engine, APU, and GSE emissions characteristics.
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How to Choose an Approach for Computing an Airport Emissions Inventory for an SIP 19 the users may only have a general understanding of airports (and airport operations) and be comparatively less accomplished conducting an emissions inventory.
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20 Guidebook for Preparing Airport Emissions Inventories for State Implementation Plans or the Air Traffic Activity Data System (ATADS) -- thus making their activity levels relatively current and accessible.
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How to Choose an Approach for Computing an Airport Emissions Inventory for an SIP 21 documents. By comparison, these operational data for GA airports are often limited, difficult to obtain, or out of date.
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22 Guidebook for Preparing Airport Emissions Inventories for State Implementation Plans the use of airport-specific data that are up to date and sufficiently detailed is expected to produce results that are more accurate than an assessment that relies on a set of generalized or worst-case assumptions. Again, the critical data inputs to the emissions inventory such as aircraft operations, fleet mix, and taxi/delay times as well as APU/GSE data for historic, current, and/or future-year conditions are all important variables in this regard.
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How to Choose an Approach for Computing an Airport Emissions Inventory for an SIP 23 cussed their most prominent characteristics. Section 3.2 identified and discussed several of the most important factors, or issues, likely to be encountered, weighed, and decided upon by the preparers of airport emissions inventories.
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24 Guidebook for Preparing Airport Emissions Inventories for State Implementation Plans multiple airports or an array of other non-airport emissions sources to quantify within a nonattainment area but limited resources and time to complete the work. Therefore, finding the suitable balance and selecting the appropriate approach to preparing an airport emissions inventory for an SIP is typically achieved by evaluating the array of factors discussed above in Section 3.2 and weighing the benefits and costs of each one individually, then as a group.
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How to Choose an Approach for Computing an Airport Emissions Inventory for an SIP 25 3.3.3 Making a Selection As discussed above in Section 3.2, there are a number of factors to consider when formulating an approach to preparing an airport emissions inventory, and in Section 3.3.2 the pros and cons of each approach are identified. This section serves as a final distillation of the approach decision-making process to aid Guidebook users in the selection process.
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