• 한국IT서비스학회:학술대회논문집
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• 2006.05a
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• pp.181-185
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• 2006

최근 차량에 설치된 단말기를 통해 길안내 서비스, 교통정보 서비스 등 다양한 정보를 제공하는 텔레매틱스 서비스가 활발하게 연구되고 있다. 하지만 현재 대다수의 텔레매틱스 서비스는 최대 15m 의 공간오차를 가진 GPS 기술을 이용하기 때문에 차량의 정확한 위치정보를 파악하기는 힘들다. 따라서 본 논문에서는 무선 센서노드를 이용해 GPS 보다 정확한 차량의 위치정보와 속도를 감지하고 노드 간 통신 프로토콜로서 Telematics Scheduling Protocol(TSP)[1]을 사용하여 교차로 중앙에 위치한 베이스 스테이션으로 전송하여 교차로에서 발생할 수 있는 차량 충돌을 예측하며 충돌 위험 정보를 교차로에 근접한 자동차에게 알려주는 텔레매틱스 교통안전시스템[1]을 소개한다. 또한 교통안전시스템으로서의 신뢰성과 실시간성을 비교평가하기 위하여 TSP 프로토콜, IEEE 802.11[2]과 802.15.4[3]를 대상으로 네트워크 시뮬레이터 ns-2[4]를 이용하여 시뮬레이션한다.

• Journal of Korean Society of Transportation
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• v.32 no.1
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• pp.39-49
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• 2014

The continuing growth of transportation and communication has resulted in the spread of transportation information interlocked with the Internet. General users are actively seeking web-based transportation information and are trying to apply it into their lives. Now the implementation of user-centered transportation information services are becoming the essential activity for pertinent companies or public institutions. In this paper the author tried to measure the quality of web sites featuring transportation information using the robust measurement tool called WebQual. In addition, the author investigated the relationship between the components of WebQual (usability, information quality, and interactivity) and satisfaction/intention to revisit. According to the results, WebQual had the effectiveness of confirming the service quality for the web sites of transportation information. Also the components of WebQual had positive influences on satisfaction and intention to revisit.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2008.06a
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• pp.510-517
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• 2008

본 연구에서는 u-City 건설에 따른 도시 기반시설물의 관리 중 특히 교통시설물의 관리를 위한 USN(Ubiquitous Sensor Network) 기반 서비스 모델을 구축하기 위하여 관련 현황을 분석하고 이에 대한 전 방향을 제시하고자 한다. 이를 위해 국 내외의 ITS(Intelligent Transport System)의 추진현황을 살펴보고, 이를 통해 제공되는 교통시설물 관련 서비스를 교통흐름관리, 교통정보제공, 대중교통 활성화 3개 부문으로 나누어 분석하였다. 또한 USN 기술의 발전 동향을 살펴보아 미래의 u-City 건설 지역에 교통시설의 이용효율을 극대화하고, 교통 이용편의와 교통안전을 제고하기 위한 USN 기반의 교통시설물 관련 서비스 방안을 제시하고자 한다.

• Korea Information Processing Society Review
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• v.11 no.4
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• pp.63-68
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• 2004

텔레매틱스란 차량의 운전자와 탑승자에게 교통정보안내 긴급구난, 원격차량진단, 인터넷 서비스(금응거래, 뉴스, e-mail 등) 등을 제공하여 “Mobile Office” 혹은 “움직이는 비즈니스 공간”을 구현하는 서비스를 말한다[1]. 따라서 텔레매틱스는 필수적으로 자동차산업과 연계되어 서비스가 이루어져야 한다. (중략)

• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.12
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• pp.1373-1380
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• 2014

In order to calculate accurate traffic and traffic speed, qualified and sufficient GPS data should be provided. However, it is difficult to provide accurate traffic information using restricted GPS data from probe vehicles because of communication costs. This paper developed a algorithm that recovers links omitted by restricted GPS data with topology information, and calculate traffic speed with original links and recovered links. T traffic information service of city with a new algorithm can provide more accurate traffic and traffic speed than the original system.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.11 no.4
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• pp.19-33
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• 2012

Ministry of Land, Transport and Maritime Affairs prepared the method to update traffic connection system by amending "National Transport System Efficiency Act(hereinafter Act)". The key is a development of Intermodal Transfer Center. The law and guideline related with Intermodal Transfer Center requires the installation and operation of transfer information guide facility to improve user's convenience. However, there are no sufficient studies that can be used as references for the method to construct transfer support information system related with user's preference. The study performed the research about user's service satisfaction in relation with transfer support information service, which was embodied in model operation process, on the basis of transfer support information system of Intermodal Transfer Center applied to Gimpo Airport. The analysis result about service preference, importance of each supplied information, service satisfaction and consideration for service embodiment can be used as a guideline to embody the user information service of Intermodal Transfer Center. In addition, through CVM, the study estimated and proposed the service valuation of smart intermodal transfer service that provides customized information to cope with user's situation and traffic means operation status among transfer support information service. It is determined that the study will measure the benefit of Intermodal Transfer Center user by using monetary value when smart intermodal transfer service is supplied and provide the ground to expand high-tech transfer information service with high usefulness and convenience.

• Journal of Broadcast Engineering
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• v.12 no.3
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• pp.203-213
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• 2007

DMB video/audio service was successfully launched. DMB data service is a matter of primary concern now. The TTI(Traffic and Travel Information) service is considered as a killer application of the data service. Tn this paper, we propose a method for design and implementation of the broadcasting system for TTI service. The proposed TTI service system consists of an authoring tool, the DB module, the Transmission module and Monitoring module. This system satisfies the national TTA standards of the Traffic and Travel Information data services for terrestrial DMB; TPEG(Transport Protocol Experts Group) platform. The system was designed to support real-time automatic transmission for CTT and CTT SUM, and non real-time authoring & automatic transmission for POI and SDI, and was focused on the capability to make high-quality contents efficiently and to send them to the data inserter reliably. The performance of the implemented system was proven through the conformance tests with the various commercial receivers. After the continuous upgrade, the system is being used in commercial service.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.11 no.5
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• pp.56-61
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• 2012

Several Visualization techniques have been applied in traffic information area. This work is the basic research for applying of interactive visualization techniques when the traffic information is provided to users. Design of interactive visualization techniques were applied to traffic information services. Previous studies for information visualization with interactive visualization techniques were investigated, and the traffic information services currently provided were analyzed. There are many types of interactive visualization techniques, but this study is mainly focused on selecting, querying, linking, filtering and rearranging techniques. The users can obtain the proper and more suitable information for theie needs, because each interactive visualization techniques support interaction between information and users. The traffic information which has one of interactive techniques can be more effective for decision making and utilization. More attention is given to interactive visualization of data and information techniques in transportation field. By this research, it is expected that traffic information services is more effective and can be a foundation work for various interactive visualization techniques in traffice inforamtion.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.29 no.2D
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• pp.199-207
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• 2009

We tried to show the course of UTIS vitalization, promoting to introduce as part of the advanced traveler information system through analysis using traffic information gap model of service and structural equation modeling being used by drivers. The summary of the research is as follows. 1. We could find out the service matters needed to improve and what should be prior that make drivers' use increase through establishing the gap model of service. 2. We could establish the structural equation modeling through using traffic information use satisfaction rate, entire traffic information satisfaction rate as the observation variables. You can say it is the fruit of this research that it was confirmed the entire satisfaction rate of traffic information influenced extension, convenience, accuracy, economical efficiency in order. We could also arrange the base to determine the order of services for vitalization of UTIS in the future through grasping the priority of each service functions classified by factors. 3. It is confirmed that many drivers want multimedia function, driving support function and various functions for the personal convenience in situations except driving, which enable the drivers to enjoy leisures and interests rather than economical functions during driving due to the recent social and economic changes.

• The Magazine of the IEIE
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• v.24 no.2
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• pp.41-49
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• 1997

본 논문에서는 전자, 통신, 제어, 컴퓨터공학 등의 첨단기술을 교통공학에 응용하여 기존의 도로 효율성을 극대화 시키는 방안으로 제시되고 있는 첨단 교통체계(ITS)연구의 기반시스템인 지능형 교통관리체계(ATMS)의 시스템 구성 및 제공서비스를 개관하였다. 연구범위는 ATMS의 개념 및 정의, 시스템의 기능적 요구사항 및 기본구상, 그리고 제공서비스의 종류를 살펴보았다. 향후 지능형 교통관리체계는 대도시 교통 소통을 완화시키는 방안으로서 도시가로에 영향을 미치는 교통정보 제공시스템, 주행안내시스템, 대중교통 및 화물운송 체계 등과 연계되는 종합교통체계 구축의 기반이 될 것으로 기대된다.