• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2014.06a
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• pp.76-78
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• 2014

해양경찰청은 지난 '10년도 국내 연안VTS 확대구축에 관한 기본 계획을 수립하여 현(現) 진도 여수 연안VTS 인수 구축업무를 성공적으로 완료하였으며, 오는 7월 통영 연안VTS 센터가 경남권역 연안해역의 통항선박 안전을 위해 개국예정이다. 이에 제1단계 사업의 종료시점이 도래됨에 따라 서해권역 연안VTS 확대구축 전(前) 기 운영 중인 국 내외 연안VTS 운영방법을 토대로 해양경찰 연안VTS 관제구역과 VHF 통화 채널의 효율성을 분석하여 향후 이용자 편의성 도모 및 해양환경 보호에 이바지하고자 한다.

• Proceedings of the KSEE Conference
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• 2006.10a
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• pp.27-46
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• 2006

Field blasting engineers who took a degree from university, and passed the national qualifying examination of blaster, and took a prescribed course by national commend, and got a license of blasting from the national police agency are the foundation of a society of explosive&blasting of south Korea. By their view, we want to find problems of the domestic fiend blasting, and to think about solutions. I hope they become the world's best blasting engineer.

• Proceedings of the KAIS Fall Conference
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• 2009.05a
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• pp.663-665
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• 2009

현대 사회는 정보의 중요성이 부각되고, 유무선 네트워크 기술이 발전함에 따라 이동 중에 통신 서비스가 가능한 환경으로 변화하고 있다. 특히, 정보화 기기가 소형화, 지능화됨에 따라 이 기기들이 자유롭게 네트워크에 연결되어 정보를 공유할 수 있는 유비쿼터스(ubiquitous) 환경의 필요성은 더욱 증가하고 있다. uMC는 도시의 모든 기반 시설물을 관리, 관제하고 운용하는 새로운 개념의 도시 통합관제 센터로 기존의 소방 방재센터, CCTV, 경찰청 등의 단위 시스템별 관제 센터 등을 물리적으로 통합하고 모든 시설물과의 네트워크 통신 등을 통합 관리하는 도시 관리의 중추적인 역할을 수행한다. 본 논문에서는 uMC에 접속하는 과정에서 접근 및 보안성을 강화하기 위해 네트워크상에 존재하는 단말기기에 효율적으로 IP를 할당하고 인증 할 수 있는 방안을 연구한다.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2016.11a
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• pp.255-256
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• 2016

우리나라의 2015년 노인 인구는 전체 인구의 13.1%를 차지하고 2015년 경찰청 교통사고통계에 의하면 65세 이상 노인의 교통사고 사망률은 전체 교통사고 사망률의 약 2.57배 높은 것으로 나타났다. 본 연구에서는 노인 운전자와 성인 운전자의 사망사고에 대한 시계열 모형을 확인하고 추세에 큰 차이가 있는지 확인하고자 하였다. 분석방법인 시계열분석은 단기예측에 신뢰성이 더 높은 것으로 알려져 있다. ARIMA 모형으로 시계열분석을 하기 위해서는 최소 50~60개 이상의 관측값이 필요하며 따라서 본 연구에서는 인천광역시를 대상으로 2010년부터 2015년까지 6년간의 교통사고 데이터를 노인 운전자와 성인 운전자로 구분하고 사망사고에 대한 시계열 모형을 확인하였다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.13 no.6
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• pp.54-63
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• 2014

Traffic accident frequency and severity level in Korea are known to be very serious. Especially the number of pedestrian fatalities was much worse and 1.6 time higher than the OECD average. According to the National Police Agency, the flash signals are reported to have many safety benefits as well as travel time reduction, which is opposed to the foreign studies. With this background of expanding the flash signal, this research aims to investigate the overall impact of the flash signal operation on safety, investigating and comparing the accident occurrence on the flash signal and the full signal intersections. For doing this accident prediction models for both flash and full signal intersections were estimated using independent variables (geometric features and traffic volume) and 3-year (2011-2013) accident data collected in Seoul. Considering the rare and random nature of accident occurrence and overdispersion (variance > mean) of the data, the negative binomial regression model was applied. As a result, installing wider crosswalk and increasing the number of pedestrian push buttons seemed to increase the safety of the flash signal intersections. In addition, the result showed that the average accident occurrence at the flash signal intersections was higher than at the full signal-operated intersections, 9% higher with everything else the same.

• International Journal of Highway Engineering
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• v.11 no.1
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• pp.153-164
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• 2009

This Paper presents the severity analysis result of the year 2006 national pedestrian crashes using the data base of 37,589 records prepared for the National Police Bureau. A set of attributing factors considered to affect pedestrian crash patterns were selected, and their contributing effects were investigated by applying the Ordered Logit Model. This model was selected because this model has been able to afford satisfactory results when the dependent variable involved ordered severity levels; fatal, injury, and property- damage-only in this investigation. The investigation has unveiled the followings; First, the pedestrian crash patterns were dependent upon human -drivel and pedestrian- characteristics including gender, age, and drinking conditions. Second, other contributing factors included vehicle, roadway geometric, weather, and hour of day characteristics. Third, seasonal effect was not contributive to crash patterns. Finally, the application of the Ordered Logit Model facilitated the ordered severity level analysis of the pedestrian crash data. This paper concludes that conventional wisdom on the pedestrian crash characteristics is largely truthful. However, this conclusion is limited only to the data used in this analysis, and further research is required for its generalization.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.21 no.1
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• pp.182-192
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• 2022

Motorcycle accidents are increasing at an average annual rate of 10.01%, and fatalities are also increasing by 2.64%. Enforcement cameras are installed to enforce safe driving of more-than or equal-to four-wheeled vehicles on the road. Even though the main purpose of this enforcement camera is to disencourage the speed violation of all types of vehicle, one cannot expect complete enforcement by these cameras. In particular, enforcement of the motorcycle should rely on on-site activities through the input of on-site personnel. Recently, to discourage the illegal acts of motorcycling, the National Police Agency introduced the 'National Police Agency SMART National Report'. However, it is necessary to prepare an appropriate practical plan to maximize the effect of enforcement requiring continuous manpower management. This study proposed four types of rider certification IDs for delivery motorcycles. These IDs are institutional devices to manage delivery motorcycle riders. In addition, a experiment on enforcement was conducted using those license ID systems for delivery motorcycles. This experiment confirmed through the image-processing program (D-MESO) if one of the systems was possible to implement for enforcement on the delivery motorcycle rider's license.

• Journal of Korea Port Economic Association
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• v.28 no.4
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• pp.99-120
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• 2012

The ongoing development of Distriparks, the increase in workers inside the warehouses, and the growth in traffic volume have shifted the attention of the many D.C. operators on how to utilize their warehouse spaces more profitably and economically. A total of 550 cars and trucks are illegally parked at the distribution centers everyday. To meet these challenges, port authorities are looking closely at how they can establish effective countermeasures to solve this problem and satisfy customers of the Distripark. In order to answer these questions, this article sought to identity and analyze the current status of the illegal parking issues and main causes of that phenomena. In addition to summarizing an actual outcomes of the illegal parking problems, the research also examines the legal and practical countermeasures of this issues. Finally this research tries to find future solutions for ports in the Distripark development process, with particular reference to the legal and managerial aspects.

• Journal of the Institute of Convergence Signal Processing
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• v.23 no.1
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• pp.37-43
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• 2022

Drones, one of the 4th industrial technologies that are expanding from military use to industrial use, are being actively used in the search missions of the National Police Agency and finding missing persons, thereby reducing interest in a wide area and the input of large-scale search personnel. However, legal review of police drone operation is continuously required, and the importance of advanced system for related operations and analysis of captured images in connection with search techniques is increasing at the same time. In this study, in order to facilitate recording, preservation, and monitoring in the concept of precise search and monitoring, it is possible to achieve high efficiency and secure golden time when precise search is performed by constructing spatial information based on photo rather than image data-based search. Therefore, we intend to propose a spatial information construction technique that reduces the resulting data volume by adjusting the unnecessary spatial information completion rate according to the size of the subject. Through this, the scope of use of drone search missions for large-scale areas is advanced and it is intended to be used as basic data for building a drone operation manual for police searches.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.21 no.6
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• pp.36-56
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• 2022

Traffic accidents occur in Korea are calculated with the 「Automobile Accident Negligence Ratio Certification Standard」 prepared by the 'General Insurance Association of Korea' and the insurance company's agreement or judgment is made. However, disputes are frequently occurring in calculating the negligence ratio. Therefore, it is thought that a more effective response would be possible if accident type according to the standard could be quickly identified using traffic accident information prepared by police. Therefore, this study aims to develop a model that learns the accident information prepared by the police and classifies it to match the accident type in the standard. In particular, through data mining, keywords necessary to classify the accident types of the standard were extracted from the accident data of the police. Then, models were developed to derive the types of accidents by learning the extracted keywords through decision trees and random forest models.