• Title/Summary/Keyword: conflict warning

Search Result 9, Processing Time 0.02 seconds

A Methodology for Providing More Reliable Traffic Safety Warning Information based on Positive Guidance Techniques (Positive Guidance 기법을 응용한 실시간 교통안전 경고정보 제공방안)

  • Kim, Jun-Hyeong;O, Cheol;O, Ju-Taek
    • Journal of Korean Society of Transportation
    • /
    • v.27 no.2
    • /
    • pp.207-214
    • /
    • 2009
  • This study proposed an advanced warning information system based on real-time traffic conflict analysis. An algorithm to detect and analyze unsafe traffic events associated with car-following and lane-changes using individual vehicle trajectories was developed. A positive guidance procedure was adopted to provide warning information to alert drivers to hazardous traffic conditions derived from the outcomes of the algorithm. In addition, autoregressive integrated moving average (ARIMA) analyses were conducted to investigate the predictability of warning information for the enhancement of information reliability.

Introduction Process of the Tobacco Graphic Health Warning Law in Korea: Analysis on the National Assembly Minutes (한국에서의 담뱃갑 경고그림 도입과정 분석연구: 국회 보건복지위 회의록 분석을 중심으로)

  • Hwang, Ji-eun;Cho, Sung-il
    • Health Policy and Management
    • /
    • v.26 no.4
    • /
    • pp.279-288
    • /
    • 2016
  • Graphic health warning on the tobacco product package is a cost-effective tobacco control policy to convey information on harmful effect of tobacco use to health, and it is known not only to motivate smokers to quit but also to deter adolescents from start smoking. In case of Korea, amendments to National Health Promotion Act requiring implementation of graphic health warning had been submitted 13 times, from 2002 to May 2015. In May 2015, the amendment had been approved by the National Assembly and it enters into force on December 23, 2016. This research analyzed the discussions from Health and Welfare Committee of the National Assembly during the implementation of the graphic health warning in order to study decision making process of legislators. Study found that there was a shift from a general opposition on implementing graphic health warning at first to a harsh conflict over relaxation of the regulation once discussing the implementation in earnest. Particularly, while the group supporting the implementation of the graphic health warning or opposing relaxation advocated the amendment with scientific and knowledge-based evidences including the World Health Organization Framework Convention on Tobacco Control, the group opposing the adoption of the amendment itself or suggesting relaxation tended to defend their position with empathy on smokers or tobacco industries.

Advanced Freeway Traffic Safety Warning Information System based on Surrogate Safety Measures (SSM): Information Processing Methods (Surrogate Safety Measures(SSM)기반 고속도로 교통안전 경고정보 처리 및 가공기법)

  • O, Cheol;O, Ju-Taek;Song, Tae-Jin;Park, Jae-Hong;Kim, Tae-Jin
    • Journal of Korean Society of Transportation
    • /
    • v.27 no.3
    • /
    • pp.59-70
    • /
    • 2009
  • This study presents a novel traffic information system which is capable of detecting unsafe traffic events leading to accident occurrence and providing warning information to drivers for safer driving. Unsafe traffic events are captured by a vehicle image processing-based detection system in real time. Surrogate safety measures (SSM) representing quantitative accident potentials were derived, and further utilized to develop a data processing algorithm and analysis techniques in the proposed system. This study also defined 'emergency warning area' and 'general warning area' for more effective provision of warning information. In addition, methodologies for determining thresholds to trigger warning information were presented. Technical issues and further studies to fully exploit the benefits of the proposed system were discussed. It is expected that the proposed system would be effective for better management of traffic flow to prevent traffic accidents on freeways.

Performance Evaluation of the Ground-to-Ground Surveillance Test bed Based on ADS-B Concept (ADS-B 개념기반의 지대지 감시 Test bed 성능평가)

  • Oh, Kyung-Ryoon;Kim, In-Kyu;Song, Jae-Hoon
    • Aerospace Engineering and Technology
    • /
    • v.6 no.1
    • /
    • pp.45-54
    • /
    • 2007
  • In this study, the function of TIS-B(Traffic Information Service-Broadcasting), Runway incursion prevention, conflict warning, way-point assignment were evaluated using ground-to-ground surveillance test bed of KARI which was based on ADS-B(Automatic Dependant Surveillance-Broadcasting) concept. VDL(VHF Data Link) based on STDMA protocol was used as a data link, and an UAT(Universal Access Transceiver) was included to get the TIS-B information, and four ground vehicles and two aircraft were included as rover units. The main purpose of this test bed was to realize the ADS-B concept for the application of ground surveillance and to evaluate its performance.

  • PDF

Road Safety Message Providing Methodology for Considering the Elderly Walking Behavior (고령자 보행행태를 고려한 상충위험정보 제공방법 설계)

  • Jang, Jeong-Ah;Cho, Woong
    • The Journal of the Korea institute of electronic communication sciences
    • /
    • v.12 no.1
    • /
    • pp.9-16
    • /
    • 2017
  • In this paper, we introduce a warning message providing methodology by considering the elderly's walking behavior in V2P(: Vehicle-to-Pedestrian) communication systems. Using the elderly's accident records in Kyounggi-do area from 2011 to 2014, the elderly's accident behaviors are analyzed by categorizing accidents as road type (single road/ crossing road), existence of traffic signal (with signal/ without signal), existence of crosswalk (crosswalk/ jaywalk), cause of accident (jaywalk/ signal violation/ carelessness accident/ Etc.). In addition, the elderly's behavior variable and vehicle speed are applied, then some threshold values are utilized in a warning message providing in conflict area. Finally, we propose a distance which can protect an accident depending on the elderly's walking speed, safety margin and vehicle speed. By applying the results of this research to the V2P/P2V communication based road safety message providing system with the elderly's walking behavior, it may be helpful to reduce accident rate of the elderly.

Academic Warning Students' Learning Behavior Type Exploration (학사경고 대학생의 학습행동 유형 탐색)

  • Hyun, Yong-Chan;Hong, Seung-Hee;Park, Jung-Hwan
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.21 no.12
    • /
    • pp.819-825
    • /
    • 2020
  • This study explored the possibility of psychological testing as a way to proactively support underachieving students. Among the four-year college students that participated in our study, 43 students who participated in the academic warning support program for the second semester of 2019 and 30 students who had no academic warning experience used the data from the study personality type test. For data analysis, technical statistics, t-test, and correlation analysis were performed using jambi 1.1.9.0 to obtain the Pearson correlation. Studies have shown that the two classes of students differ in their learning behavior patterns. A student with a bachelor's degree warning scored high in the rest of the class, except for rebelliousness, perfection, mixed thoughts, hard work, satisfaction, single-mindedness and type satisfaction. This can be seen as a factor in the psychological conflict, such as the discrepancy between what one likes and what one studies, and lack of available support. It has been confirmed that psychology, emotional parts and economic support are needed as well as learning skills. In addition, this study is expected to provide basic data for proper preemptive support in schools, such as the prevention of dropouts and counseling programs.

A Study on Bus Conflicts When Applying Test Patterns (고장검사 적용시의 버스충돌에 관한 연구)

  • Kim, Kyu-Chull
    • The Transactions of the Korea Information Processing Society
    • /
    • v.5 no.9
    • /
    • pp.2369-2377
    • /
    • 1998
  • Fault simulators are used to evaluate the quality of a test pattern generated. So far, most fault simulators did not handle bus conflicts properly. We analyzed . all possible bus conflicts when test patterns are applied to a circuit with bus structure and categorized bus conflicts into various types. Also. we proposed an efficient method to identify various types of bus conflicts. The fault simulator which employs the proposed method can evaluate the quality of test patterns generated and also can avoid destruction of bus drivers due to bus conflicts hy warning the use of test patterns which cause bus conflicts. The proposed method can also be incorperated into a test pattern generator so that it can generate conflict-free test patterns.

  • PDF

Determination of Cadmium and Zinc Contamination Source in Arable Soil in the Vicinity of a Zinc Smelting Factory

  • Hong, Chang-Oh;Gutierrez, Jessie;Lee, Seul-Bi;Lee, Yong-Bok;Yu, Chan;Kim, Pil-Joo
    • Korean Journal of Environmental Agriculture
    • /
    • v.26 no.3
    • /
    • pp.204-209
    • /
    • 2007
  • Agricultural area in the vicinity of the ${\triangle}{\triangle}$ smelting factory in Kyeongbuk province, the third largest zinc smelting factory in the world, was contaminated by high concentration of heavy metals. However, the heavy metals source was not yet directly traced and thus, resulted to a conflict between the factory and residents within its vicinity. In order to determine the level of heavy metal contamination in the arable lands located at the north eastern part of the factory, soils were sampled systematically. To find out the major reason for the occurrence of this problem, waters and aerosols were sampled with constant intervals to the upward and downward direction from the factory and were analyzed to find out the heavy metal concentrations. Cadmium (Cd) and zinc (Zn) of the heavy metals were highly accumulated more than the Korean warning criteria (Cd 1.5, Zn 300 mg $kg^{-1}$) with mean values 1.7 and 407 mg $kg^{-1}$, respectively, at the surface soils (0-20 cm), and heavy metal concentration significantly decreased with increasing soil depth In addition, the concentration of both metals slightly decreased with increasing distance from the factory to the surface soils. Cadmium and Zn were detected in the upward stream water with low concentration and concentrations increased significantly in the downstream after passing across the factory. Aerosol samples also showed traces of Cd and Zn which could be attributed to the contamination of the water system and the surface soils. Conclusively, Cd and Zn emitted from the ${\triangle}{\triangle}$ smelting factory moved with the aerosol in the atmosphere and thus, contaminated the agricultural areas and the water system within it vicinity.

Japan's Missile Detection Capability using Electromagnetic Wave in free space (일본의 자유공간에서 전자파를 이용한 미사일 탐지능력)

  • Lee, Yongsik
    • Journal of Satellite, Information and Communications
    • /
    • v.12 no.4
    • /
    • pp.78-86
    • /
    • 2017
  • Japan has a lot of interest about weapons systems development of surrounding national and has invested heavily in securing intelligence assets to get information about them, because of conflict issues between Japan and Russia with four northern islands, China with Senkaku Islands and entry policy into the Pacific. Japan has used a large budget to detect and intercept ballistic missile for reasons of the launch of the Taepodong missile in 1998. After took over SIGINT equipments which U.S. force had operated in 1950s~1960s, Japan made a technological analysis and advanced IT technology to produce superior equipments. Japan's SDF has installed them in 19 locations across Japan. In addition, Japan's JASDF has installed advanced early warning RADAR to detect aircraft and high speed ballistic missile entering JADIZ with S-band in 28 locations across Japan. It is possible to detect missile launch preparations, engine tests, and launch moments at any time for operation of 6 satellites high resolution reconnaissance system and 6 aegis ships. In close cooperation with the US, Japan is accessible to the SBIRS networks which detects the launch of a ballistic missile in neighboring countries. In the future, Because the United States wants Japan to act as part of the United States in East, south Asia, it is believed that the exchange of intelligence on the surrounding countries between two countries will be enhanced.