PURPOSES : In this study, drone highway route alternatives were evaluated using the analytic hierarchy process (AHP) technique to investigate any difficulties or improvements while designing drone highway routes. METHODS : Based on the literature review and AHP analysis, 39 road and airport experts were surveyed to evaluate two alternate drone highway routes that connect the Seoul train station and Jamsil park near Gangnam business district. RESULTS : The AHP analysis results revealed that the environmental aspect was the most critical factor in designing a drone highway route, followed by social and technological factors. Among the investigated factors, noise and life-environment showed the highest geometric mean value of 0.21. This mean should be considered when developing plans and policies for drone highway design. CONCLUSIONS : Environmental and social agreement is more crucial than the technological and economic aspects when designing drone highway routes. Laws and policies should be updated and followed to support the drone highway system, which is vital in logistics.

이 연구는 한국, 중국, 일본의 국제항공 네트워크의 구조적 차이를 파악하기 위해 각 국의 주요 공항 및 국적 항공사 네트워크를 대상으로 비교분석을 실시하였다. 공항과 항공사 네트워크의 연결성을 파악하기 위해 연결·매개·근접 중심성, 네트워크 밀도, 동류성(Assortativity) 등 네트워크 분석의 다양한 지표들이 활용되었다. 주요 분석 결과는 다음과 같다. 먼저 아시아 공항들을 대상으로 국제노선 네트워크의 중심성 순위 분석 결과, 인천공항은 연결, 매개, 근접 중심성 측면에서 아시아 최상위권에 위치하였 다. 이와 더불어, 동북아와 중국 간 국제노선 네트워크가 조밀해짐에 따라 양 지역의 2차 허브공항들을 중심으로 3개 중심성 순위가 2015년 대비 급속하게 상승하였다는 점을 발견하였다. 다음으로 한국, 중국, 일본의 주요 공항 간 국제항공 네트워크 비교 결과, 우리나라는 인천 중심의 단일 허브 네트워크가 발달함에 따라 인천과 나머지 국제공항 간 중심성 격차가 복수의 허브를 운용하는 중국과 일본에 비해 매우 크게 나타나고 있었다. 다만, 국적 LCCs(Low Cost Carriers)의 경우 지역공항을 2차적 거점으로 활용함에 따라 인천공항에 대한 국제노선 집중도가 FSCs(Full Service Carriers)에 비해 상대적으로 낮게 나타났다. 본 연구를 통해 국가공항체계의 불균형을 완화하고, 지방 거주민들의 국제선 접근성 및 이용 편의성을 향상시키기 위한 전략으로 LCCs를 통한 지방국제공항들의 국제 연결성 강화 전략이 지속적으로 추진될 필요가 있다는 점을 확인하였다.

There have been numerous refugee-related studies in linguistics following a large inflow of refugees to South Korea over the past several years. However, many studies address refugees in terms of Korean language education, and little has been discussed on the actual language use of refugees or linguistic issues they experience in South Korea. Linguistic research regarding refugees must be conducted not only with regard to Korean language education but also in terms of observing and interpreting the actual language use of and social issues experienced by refugees. In this respect, this study notes the issues faced by refugees moving to South Korea without knowledge of the Korean language. Specifically, it addresses communication issues arising within the limited space of the airport entry and departure port. To this end, two Arabic speakers applying for refugee recognition at the airport entry and departure port were interviewed. As such, procedures that must be taken at the entry and departure port between exiting the airplane and entering South Korea were reconstructed from an insider's perspective, and communication issues occurring throughout each procedure were reviewed. Subsequently, suggestions were made to ensure the language human rights of refugees at airports.

PURPOSES : Almost every design method for airport concrete pavements considers only traffic loading and not environmental loading. This study proposes a mechanistic design method for airport concrete pavements, that considers both environmental and traffic loading simultaneously. METHODS: First, the environmental loading of concrete pavements in Korean airports was quantified. FEAFAA, a finite element analysis program for airport pavements, was used to calculate the maximum tensile stress (MTS) of the slab, caused by both environmental and traffic loadings. The factors that influence the MTS were identified via sensitivity analysis, and an MTS prediction model was developed using the statistical analysis program SPSS. The ratio of MTS to the tensile strength of slab was calculated using the prediction model. The fatigue model under the AC 150/5320-6E and AC 150/5320-6F standards of the FAA was corrected to make it suitable for the predicted stress-strength ratio. RESULTS : The MTS prediction model and corrected fatigue model were used to redesign the slab thickness and joint spacing of airport concrete pavements originally designed using the AC 150/5320-6D standard, which empirically considers traffic loading only. As a result, different slab thicknesses and joint spacings were redesigned with consideration for environmental loading, specifically the weather conditions of airports. . CONCLUSIONS: The slab thickness and joint spacing can be mechanistically designed at the same time, whereas previously, only the slab thickness was designed, and the joint spacing was determined empirically.