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NextGen for Airports, Volume 1: Understanding the Airport’s Role in Performance-Based Navigation: Resource Guide (2016) / Chapter Skim
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Pages 88-93

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From page 88...
... 86 | UNDERSTANDING THE AIRPORT'S ROLE IN PERFORMANCE-BASED NAVIGATION TERM DEFINITION Above Ground Level (AGL) The altitude expressed in the actual number of feet measured with respect to the underlying ground surface.
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From page 89...
... Appendix B: Glossary of Terms | 87 TERM DEFINITION Clean Air Act (CAA) A United States federal law, first enacted in 1955, with major revisions in 1970 and 1977, designed to protect human health and the environment from the effects of air pollution.
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From page 90...
... 88 | UNDERSTANDING THE AIRPORT'S ROLE IN PERFORMANCE-BASED NAVIGATION TERM DEFINITION Equivalent Lateral Spacing Operations (ELSO) A procedure used by air traffic controllers to space aircraft closer together on takeoff and landing at major U.S.
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From page 91...
... Appendix B: Glossary of Terms | 89 TERM DEFINITION Instrument Landing System (ILS) A radar-based instrument approach system that provides precision lateral and vertical guidance to ILS-equipped aircraft approaching and landing on a runway, enabling a safe landing during instrument meteorological conditions (IMC)
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From page 92...
... 90 | UNDERSTANDING THE AIRPORT'S ROLE IN PERFORMANCE-BASED NAVIGATION TERM DEFINITION Noise Compatibility Programs (NCP) A program that promulgates recommendations on the abatement and/or mitigation of existing impacts of aviation noise, and the prevention of future incompatibilities in areas identified as being significantly impacted by aircraft noise.
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From page 93...
... Appendix B: Glossary of Terms | 91 TERM DEFINITION Sound Exposure Level (SEL) The most common metric for measuring cumulative noise exposure for a single aircraft flyover, computed from measured dB sound levels.
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