• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.24 no.1
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• pp.123-130
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• 2006

The purpose of the paper is to make the three dimensional road simulation model based on the digital photogrammetry and GIS techniques in the middle of Halla mountain of Jeju island. To do this, we generate DEM (digital elevation model) and digital ortho image using GIS tools such as Arc View, Imagestation and MGE module. In GIS, the overlay map schemes combining of the hill shade, the land slope and aspect were applied. Based on the processes, we can build the best three dimensional road line along the hill side of the island. From the results, we also found that the derived DEM from digital ortho image and the GIS technique were very useful for choosing the best three dimensional road design before the real road construction works in Jeju island.

• Journal of Korean Society of Transportation
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• v.26 no.5
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• pp.117-127
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• 2008

After the deregulation of the aviation market in the United States in 1978, airlines took advantage of the possibilities of the liberalized market and reorganized their networks. Then, the hub-and-spoke networks became widely used in the aviation market. The framework of hub-and-spoke network made it feasible to amplify flight networks. Thus, a number of airlines were able to fly to more destinations than ever before through the networks. Amplification of networks can be implementing through the transfer of passengers, transshipment of cargo, or both most researches have been concentrated on the passenger aspect at airports worldwide. Air cargo, however, has become one of the most significant areas at hub airports to keep their leading position in terms of the provision of services and handling volumes. This paper investigates the connectivity of airfreight networks as the temporal concentrations in current network at Incheon International Airport. In order to evaluate airline flight schedule effects to stimulate hubbing at an airport, the indirect connectivity can be considered to be the number of direct frequencies, the minimum connecting times and the quality of the connection determine indirect connectivity. Therefore the connectivity of freight transshipment depends on both the quality of the connection at the hub airport and the quality of the indirect flight compared to the direct flight. In addressing these issues, this paper analyzes the connectivity of flight schedules using a temporal wave-system structure and estimates the degree of connectivity and quality of connectivity applying the NETSCAN model.

• 한국항공운항학회:학술대회논문집
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• 2016.05a
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• pp.73-78
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• 2016

기술의 발전 및 증가하는 항공수요를 바탕으로 항공산업은 신규항공기의 개발, 노선의 확충, 항공사의 신설 등 지속적인 성장을 거듭하고 있다. 이처럼 항공산업의 발전에도 불구하고 항공기 사고의 발생은 일정한 수준을 유지하고 있으며 단한건의 사고로 막대한 사회적 손실을 야기할 수 있다. 현재 국내 외에서 발생하는 항공사고는 대부분 인적요인에 의해서 발생되며 그중 피로관리 미흡으로 인한 사고가 높은 비중을 차지하고 있다. 이에 따라 국가기관 및 국제사회는 운항승무원, 객실승무원에 대한 피로관리 시스템의 연구 및 개발을 통하여 피로관리시스템을 운영하고 있다. 그러나 직접적인 항공안전, 유지, 보수를 책임지는 항공정비사들의 경우 주 야간근무, 3교대근무 등에 의한 비 규칙적인 근무환경에 노출되어 있다. 또한 항공정비사의 피로관리시스템의 연구는 상대적으로 미흡한 실정이다. 따라서 선행연구 및 인적관리 연구를 바탕으로 체계적인 항공정비사 피로관리시스템의 도입 필요성에 관하여 고찰하고자 한다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.21 no.5
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• pp.1-14
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• 2022

In this study, in order to analyze the preference for UAM of public transportation users following the introduction of urban air transportation(UAM), A preference consciousness(SP) survey was conducted on 840 users of Incheon public transportation using the Incheon International Airport-Incheon Gil Hospital route, which is the urban air traffic(UAM) demonstration route section. In addition, the means selection model was estimated based on the results of conducting a preference consciousness (SP) survey. As a result of analyzing the time value for travel using the established means selection model, it was found to be 56,428 won/hour, As a result of verifying the elasticity of travel cost (won), in-vehicle time (minutes), and out-of-vehicle time (minutes) in the model, the effect on the urban air traffic (UAM) share in this model was found that travel cost (won), in-vehicle time (minutes), and out-of-vehicle time (minutes) were in order, and the effect was greater when the travel cost (won) decreased than when it increased.

• Journal of the Korea Society for Simulation
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• v.18 no.1
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• pp.41-51
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• 2009

A discrete event simulation model is developed to evaluate the performances of three different revenue management methods for an air cargo network from Northeast China to North America and Europe. In the first method, a bid price model is applied only to the routes that pass through Incheon. In the second method, the bid price model is applied to all the routes. In third method, bid price and virtual nesting models are applied to the routes that pass through Incheon. The results show that the total revenue significantly increases with the employment of pricing and capacity control. The developed simulation model is a useful research tool to study marketing strategies for air cargo operations.

• Journal of Advanced Navigation Technology
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• v.27 no.5
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• pp.561-567
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• 2023

In this study, the collision risk of the UAM (Urban Air Mobility) corridor was analyzed using a collision risk model applied to the manned aircraft corridor. According to the K-UAM roadmap and operating concept, UAM is expected to fly on a designated route similar to existing manned aircraft operations and operate on two routes, traveling back and forth between the departure point and the destination point. Among domestic manned aircraft routes, the manned aircraft operation between Gimpo Airport and Jeju Airport is similar to this and takes the form of a parallel route with a lateral separation distance between the two routes. In this study, we analyzed the collision risk of the UAM corridor according to the lateral separation distance using a collision risk model used to analyze the collision risk of manned aircraft parallel routes for a similar type of UAM corridor. Based on this, we finally analyzed how many parallel routes could be installed within the width of the Han River, considering the K-UAM demonstration route.

• Journal of the Korean Geographical Society
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• v.39 no.6 s.105
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• pp.955-970
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• 2004

With the flow of globalization, world aviation markets are showing growing trends toward liberalization, deregulation, and privatization. At the same time, also apparent is a strong trend toward regionalism on aviation markets to realize open skies at the regional level. This research examines the recent trend of regionalism in the world aviation market from a political economic perspective, taking a single European aviation market as an example. The results show that the creation of a single European aviation market is the EU's strategic response against the US to enhance the European aviation industry's competitiveness. More specifically, the results show that the European countries are creating a single European aviation market in order to stand against the US' so-called 'divide and nile policy' and 'encirclement strategy' and to make their airliners to have competitive advantages over the US airliners on the lucrative North-Atlantic air routes. Recently, the single European aviation market is expanding by including the Mediterranean and Balkan states to pursue Pan European aviation cooperation and to develop European Common Aviation Area so that it can continuously enhance its negotiating leverage against external markets. The results imply that it is urgent for the Northeast Asian countries to create their own regional aviation bloc to develop their aviation industry and to increase their negotiating power against external countries.

• The Korean Journal of Air & Space Law and Policy
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• v.28 no.2
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• pp.97-115
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• 2013

The world-wide principal criteria of aircraft operations is ICAO Annex 6. Operations of Aircraft. Among ICAO Annex 6, Part I is for International Commercial Air Transport - Aeroplanes and it assumes major part of civil aviation. ICAO has been providing Contracting States with SARPs(Standards and Recommended Practices) and monitor each State's reflection degree into their domestic air law, so-called USOAP(Universal Safety Oversight Audit Program). Current ICAO USOAP is Snap-shot method, but it will be changed to USOAP-CMA method from the year of 2013. ICAO USOAP results have overall effects on national aviation industry such as routes, insurance, airlines cooperation and so forth. Low grades of results attract international attention and that leads to flag carrier's operation stoppage, route restriction, airlines cooperation restriction, insurance increase directly or indirectly. Thus it is important to get excellent grades in ICAO USOAP and to maintain confidence. Our government ranked top to get 98.89 grades in 2008 ICAO USOAP but after 2008 the revised provisions have not been reflected sufficiently into our air law. So I would like to grip reflection ratio of ICAO Annex 6 Part I into our domestic air law by using the most updated revised edition on this paper. Together I would like to suggest alternatives for the non-reflected and partially reflected.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.26 no.1
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• pp.44-56
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• 2018

2003년 ICAO가 국제 조종사에 관한 언어능력 기준을 제시한 이래로 국제노선에 취항하는 한국 항공 종사자들은 영어 능력을 증명하기 위한 노력을 해왔다. 1969년 처음으로 항공영어교육이 시작되고 2006년 처음 시험이 도입되면서 한국은 이를 충족하기 위한 알맞은 영어 교육 프로그램을 시행하려 시도해 왔다. 그러나, 항공영어 교육과 시험에 관련된 문제점들이 꾸준히 제기되었고 특히 항공 종사자들의 필요와 요구에 맞지 않는 시험 제도와 내용에 대한 논쟁이 끊이지 않았다. 본 연구는 이러한 측면에서 항공영어와 교육에 대한 이론적 접근과 더불어, 106명의 항공종사자에게 실시한 설문지를 토대로 그들의 항공영어와 일반영어에 관한 의견, 항공영어시험에 관한 의견을 수집 분석하였다. 조사결과, 참여자들은 현재 실시되고 있는 항공영어시험이 실제 업무를 효과적으로 반영하지 않으며, 좀 더 실제적인 내용이 시험에 반영되기를 희망하였다. 즉, 항공영어 시험이 좀 더 업무에 사용되는 영어를 많이 반영하고 난이도를 고려한 새로운 형태의 시험이 개발 되어야 한다는 의견이 많았다. 또한, 설문지를 통하여 나타난 여러 사항들을 바탕으로 향후 항공영어 평가가 나아갈 방향을 항공종사자의 측면과 관련 교육기관과 시험출제자, 관련 당국 등 3 가지 분야로 나누어 논의 하였다.

• Journal of the Korean Geographical Society
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• v.43 no.4
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• pp.544-560
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• 2008

This study seeks to clarify the background and factors for the expansion of bus networks that connect Incheon International Airport with its hinterlands. For this research objective, this paper analyzes the relationships among the change of bus routes, competitive transportation modes, passenger fares, and the shortest time distance. Previously, the hinterlands of route bus networks that connect Gimpo International Airport were Seoul metropolitan area, Chungcheong region, Jeonju and Iksan in Jeollabuk-do(province). However, the opening of Incheon International Airport resulted in the expansion of the hinterlands of bus networks to Gangwon-do, Gwangju, and major cities in Youngnam region. Simultaneously, route bus networks also expanded in Seoul metropolitan area. Each bus route connecting Incheon International Airport with its hinterlands was opened by a single bus company or various bus companies. In many cases, due to the uncertainty of revenues or bus company's regional ties, a bus route was opened by various bus companies. In this paper, the analysis of the number of one-way route bus service and density of flight passengers shows that the frequency of the route bus service for Seoul except Gangseo-gu(ward) and for Seoul's satellite cities(Suwon, Seongnam, Anyang, Gunpo, Guri, and Osan) should be decreased. The analysis also shows that the frequency of the route bus services for the other cities, counties(Guns), and wards(gus) should be increased. In Seoul metropolitan area, although route bus fares are more expensive than subway fares, passengers use route bus more frequency than subway because time distance of route bus is shorter than that of subway and subway transfer is inconvenient. In general, outside Seoul metropolitan area, air flight is preferred in the regions that have airports. In contrast, the route bus is preferred in Daegu and other regions that do not have airports.