• 대한교통학회지
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• 제18권5호
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• pp.57-67
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• 2000

본 논문에서는 추종 모형을 이용한 미시 교통류 시뮬레이션 모형(DETSIM)과 현장 조사 자료를 이용하여 단속류에서 링크의 통행시간을 추정하는 2개의 모형을 개발하였다. 2개의 모형은 통행시간과 교통변수가 가지는 비선형성에 적합하도록 퍼지논리 제어기를 이용하고 있다. 시뮬레이션의 수행결과와 현장 조사에 의하면 검지기로부터 발생하는 교통량, 점유율, 속도 자료중 링크의 통행시간을 가장 잘 반영하는 것은 점유율이며, 지점속도와 교통량은 부분적으로 통행시간에 대한 설명력을 가진다. 그러나, 통행시간을 추정하는데 적용되는 교통량, 점유율 및 지점속도는 동일한 교통상황에 대해서도 검지기의 위치에 따라 다른 값을 가지게 된다 본 연구에서는 이러한 문제를 극복하기 위한 2개의 통행시간 추정 모형을 개발하였으며. 이것은 교통량과 점유율을 이용하여 통행시간을 추정하는 모형(FETSYO)과 검지기로부터 발생되는 점유율과 지점속도를 이용하여 통행속도를 추정하는 모형(FETTOS)으로 구분된다. FETSVO모형은 이식성이 뛰어나며, FETTOS 모형은 신호주기와 녹색신호시간비 등의 자료가 요구되나, 통행시간을 직접추정하고 통행시간에 민감한 자료에 의하기 때문에 FETSVO모형보다 우수한 것으로 나타났다.

• Journal of Acupuncture Research
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• 제26권3호
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• pp.1-10
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• 2009

Objectives : The main purpose of this Survey is to make a research on the actual condition of Automobile insurance system in oriental medical care. Methods : In this research, we surveyed 544 patients of traffic accident who were visited oriental medical clinic or hospital in Daegu, Korea from January, 1, 2008 to December, 31, 2008 according to medical chart. They made up Questionnaire about sex, age, pattern of accidents, days to visit oriental medical clinic, motivation to visiting clinic, damaged part of the body, chief complaint, treatment given to them, medication, tests, days of treatment and the effect. Results : The patients visited oriental medical clinic or hospital were fewer numbers from most of traffic accident patients. And most of their symptoms were light and the treatment and test of oriental medicine was limited for them because of automobile insurance limitation. Conclusions : For this study, we confirmed a possibility for the treatment of traffic accident patients in oriental medical treatment. Still, we needs to expend the boundary of treatment and to come into application of insurance.

• 한국ITS학회 논문지
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• 제1권1호
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• pp.52-57
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• 2002

본 연구는 실시간 교통정보시스템 설계최적화의 핵심사항인 동적교통정보제공에 따른 운전자 경로선택 행위를 효과적으로 분석하기 위해서 개발된 시뮬레이션툴을 실제 도시부네트워크에 적용하였다. 활용의 용이성과 조사범위의 확장을 위하여 인터넷환경에 적합한 웹기반조사툴(WATiSim)을 본 연구에 활용하였는데, 웹기반조사기법은 실제통행의 time pressure와 같이 설문내용을 응답자에게 효과적으로 전달하지 못하는 기존 SP설문조사기법의 단점을 보완할 수 있을 뿐만 아니라, 국내의 견고한 If기반시설을 바탕으로 한 인터넷망을 활용하여 대규모, 저비용의 조사를 수행할 수 있다는 장점이 있다. 사례연구를 통해 서울 도심부 네트워크에 도로전광표지(VMS)를 이용한 실시간 교통정보제공시스템을 구축하는 상황을 WATiSim으로 구현한 후에, 다양한 교통상황정보하에서 운전자들의 경로선택자료를 수집하여 그들의 의사결정구조를 분석하였고 수집된 자료를 토대로 교통상활, 통행목적, 통행상태 등으로 구성된 경로선택 로짓모형을 산출할 수 있었다. 연구결과, 운전자들은 실시간 교통정보제공에 따른 교통상황을 직관적으로 잘 이해하는 것으로 나타났으며, 교통상황, scheduled delay, 통행목적과 통행료 등에 따라 선택행위를 크게 달리하는 것으로 나타났다.

• 디지털산업정보학회논문지
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• 제20권1호
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• pp.109-118
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• 2024

Recently, a social issue has arisen involving RDDoS attacks following the sending of threatening emails to security administrators of companies and institutions. According to a report published by the Korea Internet & Security Agency and the Ministry of Science and ICT, survey results indicate that DDoS attacks are increasing. However, the top response in the survey highlighted the difficulty in countering DDoS attacks due to issues related to security personnel and costs. In responding to DDoS attacks, administrators typically detect anomalies through traffic monitoring, utilizing security equipment and programs to identify and block attacks. They also respond by employing DDoS mitigation solutions offered by external security firms. However, a challenge arises from the initial failure in early response to DDoS attacks, leading to frequent use of detection and mitigation measures. This issue, compounded by increased costs, poses a problem in effectively countering DDoS attacks. In this paper, we propose a system that creates detection rules, periodically collects traffic using mail detection and IDS, notifies administrators when rules match, and Based on predefined threshold, we use IPS to block traffic or DDoS mitigation. In the absence of DDoS mitigation, the system sends urgent notifications to administrators and suggests that you apply for and use of a cyber shelter or DDoS mitigation. Based on this, the implementation showed that network traffic was reduced from 400 Mbps to 100 Mbps, enabling DDoS response. Additionally, due to the time and expense involved in modifying detection and blocking rules, it is anticipated that future research could address cost-saving through reduced usage of DDoS mitigation by utilizing artificial intelligence for rule creation and modification, or by generating rules in new ways.

• 한국ITS학회 논문지
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• 제17권2호
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• pp.32-38
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• 2018

국도의 분류에 대한 연구는 계속되어왔으나 도시간선도로의 분류에 대한 연구는 미진한 편이다. 교통량의 증가로 도시간선도로는 간선도로로서의 역할을 제대로 수행하지 못하고 있다. 본 논문에서는 교통특성변수를 사용한 군집분석을 이용하여 도시간선도로의 기능을 정립하였다. 서울시내 55개의 간선도로의 기능을 정립하기 위해 교통량, 주말계수, 속도 계수 등 교통특성을 사용하였다. 본 논문의 결과와 AADT를 사용한 방법의 결과를 비교하였는데 AADT를 사용한 방법은 전체 차선의 교통량에 의해 특성을 분류하였으나 본 논문에서 실제 교통량을 반영한 차선당 교통량을 주요 변수로 사용하여 결과를 도출하였다. 또한 서울시 간선도로 기능분류와 본 논문의 결과를 비교하여 교통특성이 반영되었음을 증명하였다. 결과적으로 본 논문에서 제시한 방법은 현재 간선도로 기능분류 방법보다 교통특성을 나타내는데 효과적이며 기능분류체계는 도로확장 및 계획 설계에 도움이 될 것으로 판단된다.

• 한국항해항만학회지
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• 제40권5호
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• pp.249-256
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• 2016

The International Association of Marine Aids to Navigation and Lighthouse Authorities(IALA) model course recommends specific aspects of basic curriculums for Vessel Traffic Services(VTS) operator education such as modules, course hours, contents, etc. Most domestic training programs for newly appointed VTS operators comply with such recommendations. The objective of this study is to determine whether such modules for VTS operator training recommended by the current IALA model course correspond to the actual opinions of VTS operators who are currently working in the field. To this end, the relative importance of basic modules for vessel traffic services operator training was analyzed using the Analytic Hierarchy Process(AHP) method. A questionnaire was designed to include 8 modules recommended by the IALA model course, and the survey results of 52 individuals working at 5 VTS centers were analyzed. The result showed that, unlike the assumption by the IALA, domestic VTS operators viewed Nautical Knowledge as the most important modules, followed by Emergency Situations, Traffic Management, Language, Equipment, VHF Radio, Communication Co-ordination, and Personal Attributes, in that order.

• 한국항해항만학회지
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• 제46권5호
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• pp.392-399
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• 2022

With digitalization accelerated by the 4th industrial revolution, the marine traffic environment is also expected to change rapidly. The purpose of this study was to derive a new service for Aids to Navigation (AtoN) to respond to a new marine traffic environment and suggest service requirements from the perspective of the ship's operator. For this purpose, a survey of ship operators was conducted and IPA analysis was performed. Marine traffic intelligence and information services and Image-based ocean environment information services were deduced as high-priority services from the perspective of ship operators. Thus, the derived results can serve as basic data for developing new AtoN services and determining policy directions.

• 한방재활의학과학회지
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• 제28권3호
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• pp.67-78
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• 2018

Objectives The purpose of this study is to carry out a survey on satisfaction for Korean medicine treatments in traffic injury patients. Methods Satisfaction survey was carried out on the 237 traffic injury patients who had been treated by Korean medicine treatments in Department of Korean Rehabilitation Medicine, Wonkwang University Gwangju Medical Center from February, 2017 to August, 2017. The questionnaire form of preceding study was used to assess the satisfaction degree of patients. All data were coded by SPSS v20.0 (IBM Corp., Armonk, NY, USA) and analysed by descriptive maneuver, x2-test, T-test and correlation. Results Among the 237 cases, the first hospital to be selected for traffic injury treatment was Korean medicine hospital in 91 cases. And 97 patients were transferred from the western medicine hospital. The main reason for choosing Korean medicine hospital was that the patients prefer Korean medicine treatments than western medicine treatments. 85.2.% of patients answered that their symptoms were improved, and 75.1% of patients answered that they were satisfied with Korean medicine treatments. The satisfaction degree of cupping treatment and acupuncture was relatively high, but the degree of Herbal medicine and physical treatment was relatively low. There were no statistically significant differences in satisfaction degree with sex and age. The satisfaction degree, improvement of symptoms, intention to revisit and intention to recommend was significantly correlated each other. Conclusions The degree of improvement of symptoms and The satisfaction degree were revealed relatively high. Additional and repetitive studies are needed to understand the patient's position and improve the quality of Korean medicine treatments for traffic accident patients.

• 대한교통학회지
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• 제25권6호
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• pp.79-88
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• 2007

설계시간교통량(DHV: Design Hourly Volume)은 도로설계의 기본이 되는 장래시간 교통량으로, 계획목표년도에 대상 도로구간을 통과할 것으로 예상되는 한 시간 교통량을 말한다. 설계시간계수(K)는 "계획목표연도의 연평균 일교통량에 대한 설계시간 교통량의 비율(DHV/AADT)"로 정의되며, 30번째 시간 교통량을 이용할 경우 설계시간계수는 $K_{30}$으로 나타낸다. 적정규모의 도로를 설계하기 위해서는 합리적인 교통량의 예측 및 도로의 지역특성과 교통특성을 반영한 설계시간계수(DHF : Design Hour Factor)를 산출하는 것이 중요하다. 본 연구에서는 고속도로를 지역적 특성별로 유형분류한 후, 서해안 고속도로 차량검지기자료의 연간 시간대별 교통량자료를 이용하여 고속도로 설계시간계수를 구하였다. 분석결과 정기교통량조사 자료와 차량검지기자료에서 연평균일교통량은 유사한 반면, 첨두시간교통량은 특히 관광부에서 상당한 차이를 나타냈다. 정기교통량조사 자료는 실제 시간교통량 특성을 반영하기가 어려워 정기교통량조사 자료를 이용한 평균설계시간계수는 기존 지침이나 연구에서 제시되었던 결과와 다르게 산출되었으며, 기존 지침과 상반되게 도시부가 지방부와 관광부보다 더 높게 나타났다. 반면 차량검지기자료를 이용하여 구한 설계시간계수는 기존 지침에서 제시되고 있는 설계시간계수와 비교하여 도시부는 유사하게, 지방부는 약간 높게 산출되었다. 따라서 서해안고속도로에 대한 분석결과만을 이용하여 해석할 때 정기교통량 자료를 이용하는 것보다 차량검지기 자료를 이용하여 산정한 설계시간계수가 기존 관련지침에 제시된 값들과 비교적 유사하며, 합리적인 결과를 도출하여 신뢰성을 갖는 것으로 분석되었다.

• 시큐리티연구
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• 제4호
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• pp.119-136
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• 2001

A mission of the police as described by law is to guard the life, body and property of all citizens. Such duties should be accurately performed based on legal and democratic procedures because the works of the police are directively influencing the overall lives of the citizens by restricting their freedom. The national police agency is setting up the figure of the police trusted and beloved by citizens. The strategies of police reform is to recognize the proposition of 'change the mind and you will see the bright future' and the historical mission of 'It is possible to survive only through the reform'. We are frequently watching the traffic police on the street or road. Traffic policing aims to reduce crime and the opportunities for criminal activity in relation to the use of roads, that is to improve road user behavior in order to reduce accidents. This study examines perceptions of drivers on the traffic police. For this purpose, this study surveys the opinion and view of drivers in Andong city based on the survey research and interview methods. The major findings of this study is as follows. Many drivers in Andong city evaluate negatively the kindness toward civilians, fair(rational) law enforcement of traffic police. So, this study suggests the improvement of the traffic police image.(for example, kindness toward civilians, service attitude, fair and rational law enforcement, etc)