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72 CHAPTER 4 Airport-Specific Implications of the Major Themes The focus of the previous chapters was on the total impact of various strategies and management processes; this chapter reviews these concepts on an airport-by-airport basis. The content of Chapter 4 includes the following: A summary of the role of shorter distance, intra-mega-region traffic at the subject airport. A review of the possible implications of planned rail projects for trip substitution. A review of the role for rail and proximate airports for multijurisdictional solutions. A review of the importance of shorter distance flights to support economically important longer distance flights, such as international services. Conditions in the year 2025, in which the calculated impacts of doing nothing are presented as a surrogate metric for the scale of the challenge at the subject airport. A quick, preliminary assessment of the potential roles of rail substitution, rail complementarity, and better regional cooperation, which suggests that, while important, none of these alone represents a "silver bullet" that will eliminate the problem of aviation capacity in the mega-regions. Exhibit 4.0. Highlights and key themes included in Chapter 4. 4.1 Major Themes of the Report 2. Aviation planning could benefit from becoming more for Airport-Specific Application multimodal. At the moment, there is no universally accepted method to examine the possible impact of par- Chapter 4 now presents an airport-by-airport review of allel federal and local policies toward existing and planned how major airports in the two study areas might, and might HSR improvement. Although HSR projects in the aggre- not, be influenced by each of the major themes of the study gate could divert as many as 14 million air trips per year that have been presented up until this point in the analysis in the next 25 years, the early implications for individ- (see Exhibit 4.0). Each major airport will be reviewed in terms ual airports should be examined now. of the themes developed in the previous three chapters. In 3. Aviation planning could benefit from becoming more terms of their implications for specific airports, the major multijurisdictional. In some cases, chronically underused themes of the project can be summarized as follows: runway and supporting facilities can take the pressure off of larger, more strategically important regional airports. 1. The problem of lack of effective aviation capacity in the East In some cases, innovative ground services could provide Coast and West Coast Mega-regions is real and present and complementary roles to major airports; in other cases, has significant economic and environmental consequence. adjacent airports could provide more services to national The cost of not addressing the problem could rise in 2025 to hub transfer points. Data could be provided that would as high as $20 billion in the aggregate and would be asso- help explain the extent to which shorter distance flights ciated with GHG impacts of 17 million metric tons of CO2 are key to making longer distance flights successful. per year. The surrogate measure of the future cost of doing nothing provides a quick metric that scales the urgency, In short, this chapter provides airport-specific information presented in this section on an airport-by-airport basis. that would be involved in the application of a revised planning