Economic Analysis and Decision-Making Model for Runway Arresting Systems
Date Issued
2009
Date
2009
Author(s)
Li, Kuo-Hsuan
Abstract
Runway Overruns and Excursions are common accidents in records. The solutions to reduce the severity of such accidents are basically increasing the size of safety area beyond the runway end. In FAA and ICAO regulations, the recommended length of safety area for large airports is about 300 meters. However, there are still airports unable to meet the requirement for safety. Recently a new system called Engineered Material Arresting System (EMAS) that can arrest the overrun aircraft below design speed without damage to structure. Furthermore, FAA published the advisory circular and Order for the system. However, the documents only discuss the circumstances of setting EMAS, and did not explained how to make the decision between EMAS or other solutions, and not applicable for the operators who are interested in improve the insufficient safety areas in aerodromes.his research proposed a general model composed of runway-related areas dimension check and economical analysis of available improving solutions if the current condition does not meet the regulations.he dimensional check should proceed in accordance with the ICAO regulations. With the performance information of different aircraft types the runway length requirements can be calculated. After comparing the common-used aircraft types in current airport, the maximum length required runway length would be obtained. If the runway length is insufficient, the improving measures such as runway extension or aircraft weight limitations must be performed.f the runway length is sufficient but the runway end safety area (RESA) is insufficient, the possible solutions should be compared by economic analysis. This research focus on the airport related groups include airport, passengers and airlines. The analysis calculated the changes of cost, expected loss, and other elements related to the different programs. Because the analysis excluded the external effects, so the economic values calculated in this model only show the worth to specific groups. However, the analysis still can provide airport administrators basis of decision-making.his research also check the airports in ROC, and found almost all airport runway length meet the requirement, but most airports does not provide clear information about RESA, the dimensions estimated by this research showed that several airports cannot provide sufficient safety area length and should be improved.his research chose Taipei International Airport as a sample for economic analysis. Several programs such as arresting system installation, RESA extension, or collocations were purposed. After comparing the economic elements, the result showed that all programs have relatively low benefits and without any financial profit. Nevertheless, the improving programs must be performed for that the safety should not be weighted in money.he sample analysis also showed that the arresting systems are expensive and the repairmen after arresting are valued, but still comparatively cheaper than RESA extension program in those sites lack of certain length. If the land price is so cheap such as in countryside or the extension length is short that the program cost is low so that the programs will be feasible.
Subjects
Runway
Safety Area
Arresting System
Economic Analysis
Type
thesis
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