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Abstract: The safety and efficiency of air traffic are significantly affected by adverse weather. This holds especially in terminal maneuvering areas () where, in addition to the impact of weather itself, potential weather avoidance routes are strongly restricted by air traffic regulations. A weather avoidance model DIVMET has been developed which proposes a route through a field of developing thunderstorms. Air traffic control regulations have not been included in it at this stage. DIVMET was applied to the of hong Kong International Airport as air traffic control (ATC) there has become interested in improving the controller’s work load, especially for managing incoming traffic by avoidance route simulations. Although visual inspection of simulated avoidance routes by ATC was satisfactory, a quantitative validation of simulated with real observed routes was also carried out. Two real adverse weather situations with thunderstorms within the of hong Kong and with heavily distorted traffic were chosen. The main objective prior to any validation, however, was to identify routes which are solely impacted by weather but do not show any signs of regulation. Route selection was done on the base of flight position data. Landing flights were selected and deviations from standard approach routes were analyzed. As a result, the majority of 272 flights were found to be affected by both weather and regulations (60%), highlighting the challenge for air traffic controllers to manage landing traffic under adverse weather conditions safely and efficiently. Only a few weather-affected flights (7%) were not regulated and could be used for validation. DIVMET simulation routes were presented to local air traffic controllers who confirmed them as potential and realistic avoidance routes. DIVMET weather avoidance route simulations within a appear to be helpful but further model development has to incorporate traffic regulations, to include holdings, short-cuts, and slow-downs.

This paper has been well written to bring up the importance of weather information to minimize the delay of aircraft arrivals especially near HKIA. It is very well organized to understand how the study has been done. This paper tries to focus on how the adverse weather can give an impact to operate and manage the schedule of aircraft arrivals to HKIA as well as how this impact can be reduced by updating the optimized flight trajectory to pilot. To do that, the DEVMET model is adapted to integrate the radar reflectivity information dynamically into the aircraft maneuvering or trajectory modeling procedures. I think that the reader can easily see the motivation, background, some histories for this study in the introduction section. And, the pin-point of the results has been well resolved in the table 1 with the combinations of several figures for case study.

论香港国际机场起飞着陆滑行区域气象回避路线的识别

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