One year has already passed since the International Civil Aviation Organization’s (ICAO) language proficiency requirements (LPRs) test was implemented in Korea. The purpose of this study was to investigate the military air traffic controllers’ (ATCs) perceptions and their needs on English Proficiency Test for Aviation (EPTA) test. To do that, the results were compared with civilian ATCs’ perceptions which were analyzed by Shin and Kim (2005). A total of 60 active duty Air Force ATCs participated in the survey process. The questionnaire was composed of 27 items including 23 multiple choice and 4 open-ended questions. All results were discussed in the following categories: general perception of the EPTA, specific needs for military ATCs and test preparations. The results showed that gaps still exist among ICAO LPRs, the current EPTA test, and military ATCs’ specific needs. It was suggested that, to make more customized aviation English tests in the Korean ESP field as well as to meet the ICAO LPRs, it is necessary for all relevant governmental organizations, language test groups, and test experts to continuously pay attention to test-takers’ practical and specific needs.

This study deals with the overall meta-cognitive aspects of ATC-Pilot miscommunications pertinent to cognitive human errors based on the previous literature research which it has been focused on the issue of the global aviation English use in regard with aircraft accident and incident. Especially, it addresses the concern over the ICAO aviation English language proficiency evaluation program which will be implemented globally in March, 2008. In addition, It presents the analysis related to the on-going English language proficiency level four test conducted for Korean civil airlines pilots and air traffic controllers.

본 논문의 목적은 탄성과 비탄성 구조물의 지진응답제어를 위한 마찰감쇠기의 설계절차를 제시하는 것이다. ATC-40과 ATC-55를 이용하여 비탄성 구조물의 등가선형감쇠비와 등가선형주기를 구하였고, 이에 기초하여 목표 성능을 만족하기 위한 마찰감쇠기의 최대마찰력을 결정하는 식을 제시하였다. 이 식은 항복 전후 강성비와 요구되는 탄성강도에 대한 항복강도비, 그리고 구조물의 주기에 따라 비선형 수치해석과 오차가 발생한다. 수식에 의해 산출한 최대마찰력과 비선형 수치 해석에 의해 산출된 값과의 오차를 줄이기 위하여, 최소 제곱법을 사용하여 오차 보정식을 제시하였다. 수치해석결과는 제안된 보정식을 사용하면 탄성 및 비탄성 지진응답제어를 위한 마찰감쇠기의 설계를 합리적으로 수행할 수 있음을 보여준다

In this study response modification factors of rectangular reinforced concrete staggered wall system (SWS) structures were evaluated according to ATC-63. The adjusted collapse margin ratios of the model structures obtained from incremental dynamic analyses turned out to be larger than the specified limit states, which implies that the analysis model structures have enough safety margin for collapse against design level earthquakes. It also was concluded that the response modification factor, 6 used in the design of the model structures was valid.

본 연구에서는 국내에 개발예정인 자동화터미널에 적용가능한 효율적인 ATC 운영로직을 개발하기 위해서 ATC 장비 운영전략을 분석하였다. 그리고, ATC의 효율적인 운영에 있어서 가장 중요한 동적운영로직을 개발하고, 단순한 할당규칙을 수립하여 시뮬레이션 실험으로 로직검증을 하였다. 실험결과 ATC 생산성 저해요인인 간섭을 최소화하는 간섭최소화전략과 능동적인 간섭회피전략이 ATC의 대기시간 및 간섭시간을 감소시키는 것으로 나타났다. 본 연구의 결과로 ATC의 운영효율성을 향상시켜서 자동화터미널의 생산성을 향상시킬 수 있을 것으로 기대된다.