• Title/Summary/Keyword: Air traffic control

Search Result 225, Processing Time 0.028 seconds

A Study on the Prevention of Bird Collision in UAM (UAM 조류 충돌 방지대책 수립에 관한 연구)

  • Daniel Kim;Hee-duk Cho;Seung-woo Lee;Jae-woo Kim
    • Journal of Advanced Navigation Technology
    • /
    • v.28 no.3
    • /
    • pp.338-347
    • /
    • 2024
  • This paper deals with the study of bird collision avoidance measures in UAM operations from an operator's perspective. Urban air traffic is defined as a next-generation transportation system that uses environmentally friendly electric vertical take-off and landing (eVTOL) aircraft to provide transportation services between key points within and around urban centers. For the successful establishment of the UAM industry, it is necessary to ensure safety issues that determine public acceptance. Among the hazards that can occur in aviation operations, preventing bird collisions in urban environments is a measure that can greatly secure operational safety and public acceptance. In addition to physical measures, procedural control measures are required to prevent bird strikes. In order to ensure the safety of UAM operations, this study aims to provide a direction for the establishment of UAM bird collision prevention measures by categorizing bird collision prevention measures into physical and procedural methods and flight sections such as takeoff, landing, and corridor sections. Through this, we hope to contribute to the improvement of the safety of the urban air traffic operation system.

Capacity Model for Terminal Control Area (터미널 공역의 수용능력 계산 모형)

  • 양한모;김병종
    • Journal of Korean Society of Transportation
    • /
    • v.12 no.3
    • /
    • pp.15-27
    • /
    • 1994
  • A mathematical model and its solution algorithm are proposed for computing the capacity of terminal control area. The model is built based on dynamics of aircraft flying on pre-established approach path and its solution algorithm employs a numerical method. The model computes the minimum separation of two aircraft at the entry fix of the terminal control area, which assures that air traffic separation rules are not violated during the approach phase, thereby computes the capacity. The model might be applied for designing approach paths for a new airport, for rearranging paths of an existing airport or establishing approach control procedures.

  • PDF

Design and Implementation of Mode S EXTENDED SQUITTER Demodulator (Mode S 확장 스퀴터 수신기 복조부 설계 및 구현)

  • Shin, Hee-sung;Yoon, Jun-chul;Seo, Jong-deok;Choi, Sang-bang
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • 2014.10a
    • /
    • pp.189-192
    • /
    • 2014
  • Recently, U.S. and Europe, which are advanced to Air Traffic Control Management, are interest in replacing Radar System with Communications, Navigation and Surveillance(CNS) and Air Traffic Management(ATM). They pursue to research the efficient Air Traffic Control Management. This paper covers ADS-B 1090ES system which is one of CNS/ATM surveillance systems. This research satisfied all performance required by RTCA DO-268B and EUROCAE ED-129. It optimized algorism to mainly enhance performance such as quality of receiver signal, dynamic range, and so on. The optimized mechanism provided stable performance of demodulation, tuned the level of signal, and had reduced the false reception ratio by the signal level difference. The analyzed algorism helped great performance and will be considered to apply broad system applications.

  • PDF

Integrated Air Traffic Simulations of Manned and Remotely Piloted Aircraft (유무인항공기 통합 시뮬레이션 연구)

  • Oh, Hyeju;Park, Bae-Seon;Choi, Keeyoung;Lee, Hak-Tae;Jung, Hyun-Tae;Moon, Woo-Choon
    • Journal of Advanced Navigation Technology
    • /
    • v.19 no.6
    • /
    • pp.492-498
    • /
    • 2015
  • With the rapid growth of technologies and demand of remotely piloted aircraft systems (RPASs), integration of such systems into the existing airspace is becoming an issue in many countries. To assess the impact of integrated operations of manned and remotely piloted aircraft (RPA), it is necessary to perform Human-in-The-Loop (HiTL) simulations of likely situations with an integrated simulation system. This paper defines several operational concepts for the integrated simulation. Several probable scenarios were developed including a traffic pattern at a small airport and an altitude maneuver at a route crossing. HiTL simulations were performed according to the developed scenarios. The simulation results are analyzed focusing on the impacts of different communication, safety, performance, and human machine interface (HMI) characteristics of RPA.

A Study on the Improvement of Aviation Safety in Jeju Southern Air Corridor(AKARA-FUKUE Corridor) (제주남단 항공회랑(AKARA-FUKUE Corridor)의 항공안전 개선에 관한 연구)

  • Ahn, Hee-Bok;Hwang, Ho-Won
    • Journal of the Korean Society for Aviation and Aeronautics
    • /
    • v.29 no.2
    • /
    • pp.55-66
    • /
    • 2021
  • ICAO recommended that airspace monitoring and periodic safety assessments in each Contracting State ensure the stability of the airspace, since reducing the aircraft lateral and vertical separation intervals would rather increase the risk of collision. The target level of safety of the AKARA-FUKUE Corridor at the southern end of Jeju was 247×10-9. In simple comparison, this means that the risk of an aircraft collision in this area (international safety standards, 5.0×10-9) is about 50 times higher. The scope of this study is to organize the concept of terms, analyze the air traffic volume, the current status of navigational safety facility usage fees, and investigations of an aircraft collision risk in Jeju southern air corridor. Analyzing government policies and overseas evaluations, revising some of the existing contents, presenting some of the additional contents of new routes, and changing the instrument procedure for Korean-Chinese routes, change of arrive/departure route between Incheon Airport and Shanghai Airport, reduce the risk of aircraft collisions. We hope to restore airspace sovereignty, contribute to policies for the government to take the lead in solving this problem, and expect stability and operational efficiency in air traffic.

ADS-B based Trajectory Prediction and Conflict Detection for Air Traffic Management

  • Baek, Kwang-Yul;Bang, Hyo-Choong
    • International Journal of Aeronautical and Space Sciences
    • /
    • v.13 no.3
    • /
    • pp.377-385
    • /
    • 2012
  • The Automatic Dependent Surveillance Broadcast (ADS-B) system is a key component of CNS/ATM recommended by the International Civil Aviation Organization (ICAO) as the next generation air traffic control system. ADS-B broadcasts identification, positional data, and operation information of an aircraft to other aircraft, ground vehicles and ground stations in the nearby region. This paper explores the ADS-B based trajectory prediction and the conflict detection algorithm. The multiple-model based trajectory prediction algorithm leads accurate predicted conflict probability at a future forecast time. We propose an efficient and accurate algorithm to calculate conflict probability based on approximation of the conflict zone by a set of blocks. The performance of proposed algorithms is demonstrated by a numerical simulation of two aircraft encounter scenarios.

The Study on Application of NOSS in Korea (한국에서의 NOSS적용에 관한 연구)

  • Choi, Youn-Chul
    • Journal of the Korean Society for Aviation and Aeronautics
    • /
    • v.18 no.2
    • /
    • pp.60-66
    • /
    • 2010
  • Normal Operations Safety Survey (NOSS), a methodology for capturing safety data during normal Air Traffic Control (ATC) operations. The NOSS methodology is based on the Threat and Error Management (TEM) framework, and is a safety management tool to monitor safety during normal aviation operations. Monitoring safety in normal operations is an essential activity within the safety management systems of Air Traffic Services (ATS) providing organizations, and NOSS is proposed as a suitable way to do this. This study, operating in the latter half of the year of 2010 in South Korea on NOSS was the understanding and to apply.

A Study on Ways of Improvement to Effectively Control the Flight Information Region focusing on air space of IEODO (비행정보구역(Flight Information Region)의 효율적 관리를 위한 개선방안 연구 : 이어도(IEODO) 상공을 중심으로)

  • Kim, Choon-San;Bang, Jang-Kyu
    • Journal of the Korean Society for Aviation and Aeronautics
    • /
    • v.19 no.3
    • /
    • pp.43-53
    • /
    • 2011
  • It is well known some Foreign aircraft used to fly INCHEON FIR(Flight Information Region), especially the island of IEODO without a flight plan, even though foreign aircraft is subject to submitting a flight plan to Flight Information Center(FIC) before its flight. IEODO is a sunken rock 4.6m beneath the sea level, 149km away from Marado. Facing the Yangtze river's sea entrance horizontally and military zones of Korea and China vertically, IEODO is a very important place for national security of North East Asia because it is located at the boundary between China East Sea and Yellow Sea of South Korea. Moreover, JDZ(the 7th mine lot) is just 77NM from IEODO, which possesses natural gas eight times bigger than the gulf region and oil 4.5 times bigger than that of the U.S. In addition, INCHEON FIR, managed by MLTM(Air Traffic Control Center) and Japanese Self-Defense Force's JADIZ(Japanese Air Defense Identification Zone) are overlapping on IEODO whose air space is very complex. This paper focuses on air space, FIR, ADIZ(Air Defense Identification Zone) and related airspace system and suggests strategic implications of how to prevent foreign aircraft from invading INCHEON FIR without permission and of how to utilize the airspace efficiently.

Mathematical Programming for Air Pollution Control in Pusan (부산시 대기오염방지를 위한 수리계획법)

  • 이창효
    • Journal of Environmental Science International
    • /
    • v.5 no.2
    • /
    • pp.229-241
    • /
    • 1996
  • This study was performed to find the most desirable emission reduction for each mobile source pollutant and the optimal control strategy at a given level of expenditures in Pusan City in 2000 by using the interactive s-constraint method developed by Chang-Hyo Lee and Hyung-Wook Kim, which isone of the mathematical programming models. The most desirable emission reduction is 7093 ton/year for particulate (TSP), 4871 ton/year for NOx, 5148 ton/year for HC and 36779 ton/year for CO. The optimal control strategy is as follows; 1. As to passenger car and taxi, limiting VKT (vehicle kilometers travelled) in congested areas will be necessary. In addition to this, improving vehicie inspection Program should be enforced. 2. As to small-gasoline bus, traffic adaptive control system will be necessary. 3. As to small-diesel bus, non-adjustable engine parameters will have to be applied. .4. As to heal bus and heart truck, catalytic trap oxidizer and limiting VKT in congested areas will do necessary. 5. As to motorcycle, 2-cycle motorcycles should be converted to 4-cycle motorcycles.

  • PDF