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89 Providence, RI; information, but provides solid data concerning the total num- Hartford/Springfield, CT; ber of passengers on a given flight, regardless of the size of the Richmond, VA; plane. Additional information is presented in Section C.3 of Norfolk, VA; and Appendix C of this report. The eight East Coast airports described in this section. The ACRP project database has made certain simplifying assumptions to deal with limitations in the source data, partic- The ACRP project airport passenger activity summary tables ularly concerning flights that originate outside of the United are described in the introduction to Appendix A. For each of States. For that reason, OD volumes in the database may be the 15 airports covered within the East Coast study area, the slightly higher than reported in other applications built from summary tables reveal the following: DB1B data. The ACRP project database is so large that it is, in essence, The absolute volumes of origination and transferring air not feasible to create simplified spreadsheets (e.g., in Excel for- passengers at the subject airport, from the Airline Origin mat) from which the analyst can select the information appro- and Destination Survey of the Office of Airline Informa- priate to the region or issue being examined. Rather, the "raw" tion of the Bureau of Transportation Statistics (DB1B). data are kept in a large server (computer) housed at the The destinations of all originating and transferring air research team's main office in White River Junction, VT. passengers at the subject airport, organized by 13 super- The data concerning airline passenger flows are organized zones of origin and 13 superzones of destination (also by each airport located in the two study regions, as presented from the DB1B). in Appendix C. The volumes of total air passengers carried to the 10 clos- est airports to the subject airport, from the DOT T100 database, which includes very small commuter carriers not 4.7 Implications of the included in the DB1B data. Airport-by-Airport Review A single example of the number of such air travelers who for a Comprehensive Strategy are traveling to that destination with the subject airport as to Deal with Aviation Capacity the origin (again from the DB1B). in the Coastal Mega-regions A quick, preliminary assessment of the potential roles of 4.6 Description of the ACRP rail substitution, rail complementarity, and better local air- Project Database port cooperation suggests that, while important, none of The research team has created the ACRP project database these represents a "silver bullet" that will eliminate the issue to quickly summarize vast amounts of data and information of lack of aviation capacity in the mega-regions, based on this about making aviation trips in the United States and inter- airport-by-airport review. In the following chapter, the argu- national destinations. The database incorporates both the ment will be made that the aviation industry needs to signif- DB1B database of the Airline Origin and Destination Survey icantly increase the role of accountability and transparency in of the Office of Airline Information of the Bureau of Trans- the management of the airport/aviation system. Although the portation Statistics and the BTS T-100 segment volumes. In need to become more multimodal and more multijurisdic- the format presented in Appendix A, the database allows the tional is self-evident, the major opportunities to increase access of both data sources at once. The DB1B source is com- functional capacity in the coastal mega-regions lie within the prehensive in its coverage of airport-to-airport OD patterns, aviation sector itself. Chapter 5 will suggest a new relationship but does not always cover all flights by very small commercial between local and national institutions to deal with a real and aircraft. By contrast, the T-100 source does not provide OD present crisis in functional capacity.