| Summary: | 碩士 === 中華科技大學 === 航空運輸研究所 === 99 === The purpose of regulations of Objects Affecting Navigable Airspace (or Obstacle Restriction and Removal for ICAO Regulation) is to identify potential aeronautical hazards in advance thus preventing or minimizing the adverse impacts to the safe and efficient use of navigable airspace. The Obstruction Identification Surfaces (OIS), depicting these regulations, identify objects that penetrate theses imagery surfaces, evaluate hazardous effects, and ensure the safe separation between aircraft and obstructions during emergency landing or miss approach under all weather conditions. ICAO Annex14 and FAA FAR Part77 have been accepted worldwide as Obstacle Restriction Regulation. Their OIS were constructed by different design baseline or restriction area and height. Government regulations or literatures adopt one of them unilaterally without further comparison.
The purpose of this paper is to identify their differences and analysis their safety airspaces. The mathematical and analytical methods are applied in this study. The finding is that the FAA surfaces’ safety airspaces are 47% to 80% of the ICAO’s. It also means that as matter of urban development, the ICAO regulation plays a more restrictive role than FAA does. The FAA regulations have been widely used by all the airports in US for many years and proved their safety and effectiveness. The FAA regulations also show their simplicity in design and activeness in research updating.
This study contributes to the future study by avoiding ambiguity which caused by the differences between FAA and ICAO, as well as airport planning by trade-off between urban development and airport safety.
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