• Electronics and Telecommunications Trends
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• v.12 no.3 s.45
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• pp.11-17
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• 1997

ITS(Intelligent Transportation System)는 H/W 중심의 차량 및 교통 기반 기설에 통신.전자.제어.컴퓨터 등 S/W 중심의 기술을 적용하여, 각 차량 및 교통 시설(신호등, 도로, 교통 안내 표지판, 도로 상황판 등)들이 상호 보완적으로 작동할 수 있게 함으로써, 기존의 도로 교통 시설의 이용 효과를 극대화하고, 그 안정성을 향상시키며, 교통 수요 관리를 목적으로 사용자에게 교통 정보를 제공하는 지능형 종합 기술 체계이다. 이러한 최첨단 도로교통 관리의 ITS를 이용한 서비스는 각 나라마다 달리 정의되는데, 우리나라에서는 첨단교통관리시스템(ATMS), 첨단교통정보시스템(ATIS), 상용차량 운행관리 시스템(CVO), 차량 및 도로 시스템(AVCS) 그리고 첨단 대중교통 시스템(APTS)의 5개 분야로 나누어진다(1). 이 다섯가지 ITS 서비스 시스템은 공통적으로 정보 수집, 정보 처리, 정보 전달, 정보 통신 기능을 가지고 있다. 즉, 각종 검지기, 차량 단말, 노변 단말 등의 수집 장치에서 수집된 정보(정보 수집)는 관련 통신 방식(정보 통신)을 통하여 중앙 정보 처리 센터에 전달되어 그 서비스 요구 사항에 따라 처리(정보 처리)되고, 생성된 정보는 해당되는 통신 채널을 거쳐(정보 통신) 각종 사용자 단말기에게 제공(정보 전달)된다. 본 논문에서는 이와 같은 ITS체계의 정의, 목표 및 서비스 종류에 대하여 설명하였으며 교통 정보를 수집하고 처리하여 전달하는 과정과 이에 요구되는 통신 체계에 대하여 알아본다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.29 no.5D
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• pp.571-578
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• 2009

This paper shows the results of the comparative analysis of differences and similarities between GPS-based and RFID-based traffic information collection systems for testing the applicability of RFID system in urban street settings in Jeju island, Korea. For this, we reviewed both traffic information collection systems in terms of accuracy, link design scheme and cost. Regarding accuracy and real world applicability, the GPS-based system is superior and accurate. In terms of the operational cost during the first 10 years, however, the cost of RFID-based system was identified lower than that of GPS-based system. The applicability of RFID-based system, in spite of the weakness of accuracy and applicability, was tested successfully in urban settings. Some limitations and future research agenda have also been presented.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.26 no.6
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• pp.827-833
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• 2022

This study aims to prevent secondary traffic accidents with high severity by overcoming the limitations of existing traffic information collection systems through analysis of traffic information collection detectors and various algorithms used to detect unexpected situations. In other words, this study is meaningful present that analyzing the 'unexpected situation that causes secondary traffic accidents' and 'Existing traffic information collection system' accordingly presenting a solution that can preemptively prevent secondary traffic accidents, intelligent traffic information collection system that enables accurate information collection on all sections of the road. As a result of the experiment, the reliability of data transmission reached 97% based on 95%, the data transmission speed averaged 209ms based on 1000ms, and the network failover time achieved targets of 50sec based on 120sec.

• Information and Communications Magazine
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• v.21 no.5
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• pp.56-69
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• 2004

텔레매틱스 서비스를 위해서는 우선 가장 기본이 되는 교통정보의 제공체계가 뒷받침되어야 하는데, 현재 우리나라의 교통정보 수집 및 제공 체계는 이를 담당하는 각 지자체 및 업체들에 따라 별도의 시스템들을 구축하고 있어 종합적이며 체계화된 정보서비스를 필요로 하는 텔레매틱스 상용화에 문제점으로 지적되고 있다. 이를 해결하기 위해 범국가적 차원에서 교통정보의 수집 및 활용, 통합운영ㆍ관리방안을 마련하여 종합교통정보서비스 사업을 활성화할 수 있는 체계화 방안을 제시할 필요가 있으며, 이는 텔레매틱스를 위한 통신 인프라의 국제적인 기술 방향에 따른 국가 도로체계 정보화 인프라 구축방안을 전략적으로 제시하기 위한 필수적인 요소라 할 수 있다.(중략)

• Proceedings of the Korea Information Processing Society Conference
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• 2024.05a
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• pp.427-430
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• 2024

교통체계서비스는 안전한 교통 환경을 구축하는 것을 목표로 하여 차량, 도로, 기반 시설의 정보를 수집 및 처리하여 안전 교통정보를 제공한다. 교통체계서비스가 수집하는 차량 운행정보는 교통 안전 정보 외에도 다른 분야에서도 활용될 수 있으며 특히 다른 데이터와 결합하는 것으로 다양한 결과를 도출할 수 있어 연구, 통계 작성 등에 필요한 자료이다. 그러나 차량의 운행정보는 운전자의 개인정보를 포함하고 있어 운행정보 활용 시 가명화 및 가명결합이 필수적이다. 본 논문에서는 가명화된 운행정보를 가명결합하는데 발생하는 문제점을 설명하고 이러한 문제를 해결한 가명결합 방안을 연구하였다. 그 결과 교통체계서비스가 수집한 운행정보를 다른 기관의 데이터와 결합하여 활용할 수 있게 하여 개인정보를 보호하면서 데이터의 유용성을 활용하는데 기여할 것으로 예상한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.723-725
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• 2021

도로 이용자의 교통정보에 대한 수요 증가와 효율적인 도로 이용을 위해, 또한 지능형 교통체계(ITS, Intelligent Transport Systems)의 기본 기술로서 교통정보를 수집하여 제공하는 시스템에 대한 개발과 요구가 지속되고 있다. 본 연구에서는 고속도로에서 가장 많이 사용하는 교통정보 수집도구인 차량감지기(VDS)를 활용한 교통 정보 수집 시스템에 관하여 조사하였다. 이러한 차량 검지기를 활용한 교통정보는 차량의 속도와 교통량을 산출하는 데에는 효율적이지만, 공사와 수집 장비 불량으로 인하여 모든 교통 정보를 수집하는데 어려움이 있다. 이로 인해 전체적인 교통상황을 파악하기 위한 새로운 시도와 알고리즘 개발이 요구된다.

• Journal of Korean Society of Transportation
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• v.26 no.4
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• pp.251-264
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• 2008

One of the crucial elements to fully facilitate the various benefits of intelligent transportation systems (ITS) is to obtain more reliable traffic monitoring in real time. To date, point and section-based traffic measurements have been available through existing surveillance technologies, such as loops and automatic vehicle identification (AVI) systems. However, seamless and more reliable traffic data are required for more effective traffic information provision and operations. Technology advancements including vehicle tracking and wireless communication enable the acceleration of the availability of individual vehicle travel information. This study presents a UBIquitous PRObe vehicle Surveillance System (UBIPROSS) using vehicle-to-vehicle (V2V) wireless communications. Seamless vehicle travel information, including origin-destination information, speed, travel times, and other data, can be obtained by the proposed UBIPROSS. A set of parameters associated with functional requirements of the UBIPROSS, which include the market penetration rate (MPR) of equipped vehicles, V2V communication range, and travel time update interval, are investigated by a Monte Carlo simulation- (MCS) based evaluation framework. In addition, this paper describes prototypical implementation. Field test results and identified technical issues are also discussed. It is expected that the proposed system would be an invaluable precursor to develop a next-generation traffic surveillance system.

• Journal of Korean Society of Transportation
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• v.27 no.4
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• pp.175-181
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• 2009

Intelligent Transportation Systems(ITS) enables road users to enhance efficiency of their trips in a variety of traffic conditions. As a significant part of ITS, information communication technology among vehicles and between vehicles and infrastructure has been being developed to upgrade current traffic data collection technology through location-based traffic surveillance systems. A wider and detailed range of traffic data can be acquired with ease by the technology. However, its performance level falls with environmental impediments such as large vehicles, buildings, harsh weather, which often bring about wireless communication failure. For imputation of vehicle trajectory data discontinued by the failure, several potential existing methods were reviewed and a new method to complement them was devised. AIMSUN API(Application Programming Interface) software was utilized to simulate vehicle trajectories data and missing vehicle trajectories data was randomly generated for the verification of the method. The method was proven to yield more accurate and reliable traffic data than the existing ones.

• Journal of the Korea Society of Computer and Information
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• v.26 no.9
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• pp.133-141
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• 2021

The development and demand for the system that provides users with traffic information and efficient road use have continued. also, this system provides the basic technology of the Intelligent Transport System (ITS). The most used traffic information collection tools are Vehicle detectors (VDS) and short-range wireless communication (DSRC) on express way. In order to generate reliable traffic information, it is necessary to efficiently manage and utilize the collected data as well as high-quality traffic data collection and processing technology. In this study, traffic information collection·processing·provision systems were investigated, and analyze the current status and problems of traffic information collected through VDS. Based on this, we would like to present an improved collection algorithm that utilizes the Kalman filter for vehicle information measurement of VDS data. By using the algorithm of this study, it is possible to minimize the time delay of the estimated value as well as the noise removal that inevitably occurs during measurement.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.40 no.4
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• pp.401-408
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• 2020

This study considers various equipment used for collecting traffic information, analyzes that equipment in accordance with the operation states and problems, the suggests a process of traffic information collection using drones to reduce the problems and errors of existing methods. In this field investigation study using drones, the results were analyzed by altitude, angle, and direction. We suggested a standard for drone filming-based traffic information collection. Pros and cons were presented through comparison and review of the existing traffic information collection method and traffic information collection method using drones. Drones can be used to collect various traffic information from the air, more extensively than is possible with existing traffic information collection points, and provide traffic information to users proactively, responding to various accidents and disasters. It is believed that it will be possible to contribute to achieving accurate traffic volume investigation by supplementing the traffic information collected by fixed equipment, including changes and enlargement of collecting points as needed.