• Title/Summary/Keyword: 교통운영기준

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An Analysis of Baggage Demand for Designing Baggage Handling System(BHS) (A Case Study of Incheon International Airport) (수하물처리시설 설계를 위한 수하물 수요분석(인천국제공항의 예))

  • Bae, Byung-Uk;Lee, Hong-Cheol
    • Journal of Korean Society of Transportation
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    • v.22 no.1 s.72
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    • pp.19-30
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    • 2004
  • Once baggage demand of passengers is forecast, BHS requirements must be analyzed, i.e., the number of originating/transferring/terminating bags to be handled, the number of conveyor lines to be installed, the number of containers for baggage make-up, the number of claim devices for baggage claim, and so on. Therefore, the determination of the baggage traffic volume is one of the most important analysis components for the airport design. Accordingly, this research proposes time-based distribution table models in order to accurately estimate BHS requirements to obtain design criteria in airport design phase. As the BHS requirements are ascertained, related requirements of the facilities can be determined by applying actual specifications of devices, i.e., throughput. This research found that the proposed mathematical model gives a good reflection of IIA (Incheon International Airport)'s operational condition. That means the model provides apparent reliability and feasibility. Furthermore, the specifications of devices are the newest figures. This fact supports that the research provides more effcient and reliable results.

A Study on Optimal Horizontal Alignment Design for PRT Vehicle (PRT 주행선로 최적평면선형 설계에 관한 연구)

  • Um, Ju-Hwan;Kim, Baek-Hyun;Jeong, Rag-Gyo;Kang, Seok-Won;Byun, Yeun-Sub
    • Journal of Digital Convergence
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    • v.12 no.10
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    • pp.283-289
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    • 2014
  • Personal rapid transit(PRT) systems have been highlighted in future transportation developments as a result of their potential as sustainable and eco-friendly transport solutions that provide demand-responsive mobility services. One of the most important characteristics of the personal rapid transit system(PRT) is that it can be constructed and operated at a low cost. A fundamental study on the alignment of the PRT guideway considering running stability was conducted in the present study. In addition, a parameter analysis of the major alignment design variables such as curve radius, transition curve length and cant was performed by vehicle dynamic analysis and optimum guideway alignments were proposed. The analysis results suggested that the theoretical values were satisfied and also confirmed the possibility of reducing the standard.

Performance Evaluation and Economic Analysis for the Road Visibility Measurement System using the CCTV Camera (CCTV 카메라를 이용한 도로시정측정시스템의 성능평가 및 경제성 분석)

  • Kim, Bong-Keun;Lee, Gwang
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.1
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    • pp.385-392
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    • 2013
  • A key element of the fog warning system to prevent large traffic accidents is a visibility measurement device. Recently, the need for it that is similar to the human visual sense and cheap and accurate than expensive fog sensors is increasing. In this paper, we present the performance evaluation and the economic analysis of the Road Visibility Measurement System (RVMS), which is developed for measuring the road visibility through a CCTV camera. For experiments, we have installed a CCTV camera, a fog sensor, and visibility signs at the Yeo-ju Test Road on the Central Inland Expressway. We evaluated the measurements from RVMS and the fog sensor based on observations. The result shows RVMS outperforms the fog sensor with respect to measurement stability and correctness. We also show RVMS has higher economic feasibility and various applications. RVMS can prevent the traffic accidents caused by severe fog and enhance the process of the wide-area visibility information system significantly.

Analysing Spatial Usage Characteristics of Shared E-scooter: Focused on Spatial Autocorrelation Modeling (공유 전동킥보드의 공간적 이용특성 분석: 공간자기상관모형을 중심으로)

  • Kim, Sujae;Koack, Minjung;Choo, Sangho;Kim, Sanghun
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.20 no.1
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    • pp.54-69
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    • 2021
  • Policy improvement such as the revision of the Road Traffic Act are proposed for personal mobility(especially e-scooter) usage. However, there is not enough discussion to solve the problem of using shared e-scooter. In this study, we analyze the influencing factors that amount of pick-up and drop-off of shared e-scooter by dividing the Seoul into a 200m grid. we develop spatial auotcorrelation model such as spatial lag model, spatial error model, spatial durbin model, and spatial durbin error model in order to consider the characteristics of the aggregated data based on a specific space, and the spatial durbin error model is selected as the final model. As a result, demographic factor, land use factor, and transport facility factors have statistically significant impacts on usage of shared e-scooter. The result of this study will be used as basic data for suggesting efficient operation strategies considering the characteristics of weekday and weekend.

A Study on Developing Quality Control of Security Screening for Deterrence from Acts of Unlawful Interference - Focused on the Factors of Incheon International Airport (불법방해행위의 억지를 위한 보안검색 수준향상 방안 연구 - 인천국제공항 요인 분석)

  • Im, Sang-Hun;No, Yeong-Dong
    • 한국항공운항학회:학술대회논문집
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    • 2016.05a
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    • pp.245-248
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    • 2016
  • 현대의 항공테러는 단순한 항공기 납치뿐만 아니라 항공기의 공중 폭파, 항공기에 대한 미사일 공격, 공항과 승객에 대한 공격, 그리고 항공 외부 시설에 대한 공격 등 실로 다양한 형태로 자행되고 있다. 항공 교통에서의 불법 방해행위를 사전에 방지하기 위해서는 출발지의 보안 검색이 무엇보다도 중요하며, 이를 위해서 사전 예방적 선제적 항공보안관리 체계 전환, 출입부터 탑승까지 전 과정을 프로세스화한 점검활동 강화, 국제권고기준 항공보안장비 보유와 첨단화 등 미래 변화에 대한 능동적 대처뿐만 아니라 정확한 보안검색과 고객편의의 융합을 통해 세계 최고 공항으로 지향하며, 행동탐지기법의 도입을 통해 일상적이고 포괄적인 보안검색 운영의 약점을 보완하여 항공보안 강화의 토대를 마련해야 하고, 불법 방해행위의 억지를 위해 2015년부터 새롭게 실시하는 국제민간항공기구 상시 모니터링 제도의 항공보안 평가(USAP-CMA) 방식을 적극 검토하여 국정원 공항공사 항공사 등 관련기관 정보 공유, 지속적인 모니터링 및 국내 국제민간항공기구(ICAO) 인증 항공 보안평가관 등과 철저히 대비한 세부 대응 계획을 수립하고 항공보안 전문가 육성을 강구하여야 한다.

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Defining Level of Service for Railroad System and Analysis of it's Effects on System Planning (철도의 서비스수준의 정의와 시스템 계획에 미치는 영향 분석)

  • Suh, D. Sun-Duck;Shin, Young-Ho
    • Proceedings of the KSR Conference
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    • 2008.06a
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    • pp.1594-1611
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    • 2008
  • Level of Service(LOS) is classified A through F in highway system (KHCM), usually using LOS C in express way and D in national road. (LOS C denotes 75% of capacity) Meanwhile in Railroad System, there is no clearly defined LOS, and the daily demand in infra-structure planning has been used. It is very important that LOS provides consequently a consensus of opinion between users and operators because there is a close relation between user demand and level of services. Considering this, there should exist clearly defined Level of Services in Railroad System Planning so that demand can be predicted precisely.

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Trends and Prospects of Adsorption Technology for Indoor Carbon Dioxide Reduction (실내 이산화탄소 저감을 위한 흡착 기술의 동향 및 전망)

  • Kang, Hyerin;Lee, Ye Hwan;Eom, Hanki;Kim, Sung Su
    • Prospectives of Industrial Chemistry
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    • v.23 no.4
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    • pp.1-12
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    • 2020
  • 최근 실내 공기질(IAQ; indoor air quality)을 악화시키는 물질 중 하나인 이산화탄소 저감 연구가 다수 진행되고 있다. 현재 이산화탄소를 저감하는 방법에는 흡착법, 흡수법, 막분리법 등이 있다. 그 중 흡수법은 액체 상태의 흡수제를 분사하는 공정 특성상 실내에 적용하기 어렵고 2차 오염물 또는 폐수가 발생할 수 있다. 또한, 막분리법은 이산화탄소 분리를 위한 응집 및 침전과 같은 전처리 과정이 필요하므로 실내 이산화탄소 저감에 적합하지 않다. 반면, 흡착법은 비교적 저렴하고 운영이 간단하여 적용 사례가 증가하였으며, 유동 인구가 많고 환기가 어려운 지하철, 버스 등의 대중교통 차량 내부 및 교실, 사무실, 공공시설에서 배출되는 실내 이산화탄소를 제어할 수 있다는 장점이 있어 가장 적합한 해결책으로 알려져 있다. 흡착 공정에 사용되는 대표적인 흡착제 종류에는 활성탄, 제올라이트, 알루미나 등이 있으며, 이 흡착제들을 개질 및 성형하여 흡착제의 성능 및 기계적 강도를 증진시키는 고도화 연구가 활발히 수행되고 있다. 이처럼 적용 대상 내 설치 및 교체가 용이하도록 하는 흡착제 제조 기술 개발이 필요한 실정이며, 흡착제를 상용화 수준까지 발전시킴으로써 강화된 실내 공기질 규제 기준에 대한 대응 및 삶의 질 향상이 기대된다.

A Study on Business Feasibility for Marine Leisure Ships (해양레저선박에 대한 사업 타당성 분석 연구)

  • Jung-Suk Choi
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2022.11a
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    • pp.300-301
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    • 2022
  • In order to improve the accessibility to the island through marine leisure ships, it is necessary to evaluate objective business feasibility of the ship's operation. In this study, costs and income were estimated based on the operating expenses and freight standards of similar marine leisure ships in operation, and based on this, the feasibility of the project was empirically analyzed through B/C analysis, NPV, and IRR. In addition, sensitivity analysis was performed for various variables to understand the requirements for securing minimum economic feasibility. As a result of the study, in case of new building ship, the B/C ratio was estimated to be 1.042, NPV was estimated to be KRW 1.93 billion, and IRR was estimated to be 2.1% which means that profitability was secured.

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A Study on the Judicial Judgment of Flight Regulations under the Aviation Safety Act (항공안전법상 운항규정의 사법적 판단에 관한 고찰 )

  • Sung-mi Kim;Hee-bok Ahn;Un-jin Yeo;Ho-won Hwang
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.31 no.3
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    • pp.161-171
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    • 2023
  • The traditional safety management method starts with the misconception that similar accidents will recur if the inappropriate behavior of the person who caused the accident is investigated and punishment is not judged. However, in modern safety management, incidents or situations occur when negative conditions latent in the system are mutually influenced and triggered. The precedent for revoking the disposition of suspension of first officer A of Eastar Jet, which won a legal lawsuit against the administrative regulatory authority, is a representative example that will serve as an opportunity for the administrative regulatory authority to break away from the punishment-oriented safety management method of the past. On the other hand, airmans and air carriers also need to have a clear understanding of flight regulations, and when judicial judgment is required, predictable and effective legal effects can be obtained by preparing clear standards for flight regulations. In addition, administrative regulatory authorities expect a change from the punishment-oriented safety management policy of the past to a systematic safety management policy.

The Quartile Deviation and the Control Chart Model of Improvement Confidence for Link Travel Speed from GPS Probe Data (사분위편차 및 관리도 모형에 의한 GPS 수집기반 구간통행속도 데이터 이상치 제거방안 연구)

  • Han, Won-Sub;Kim, Dong-Hyo;Hyun, Cheol-Seung;Lee, Ho-Won;Oh, Yong-Tae;Lee, Choul-Ki
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.7 no.6
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    • pp.21-30
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    • 2008
  • The travel speed collected by the prove-car equipped with the GPS has the problems, which are the data's stability and finding out the representative travel speed, by the influence of the traffic signal and etc. at the interrupted traffic. This study was conducted to develop the method of filtering the outlier data from the data collected by the prove-car. The method to remove the outlier data from the serial data which were collected by the prove-car was adapted to each of the quartile deviation statistics model and the management graphic statistics model. The rate of removing the outlier data by the quartile deviation method was $0{\sim}3.7%$ while the rate by the management graphic statistic methods was $0.3{\sim}7.2%$. Both methods show the low removal rate at the dawn time when the traffic is inactivity, on the other hand the remove rate is high during the daytime. However, both methods have the problem such that the threshold level for removing the outlier data was established at the low bound in the case as good as the statistics model. Therefore, it is required for the experience calibration.

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