• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.13 no.1
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• pp.21-30
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• 1995

As it is being changed to information society with high economic development, every kind of work is being specialized and diversified in the aspects of quantity and quality. Therefore, Geo-Spatial Information System (GSIS) is getting more important because it can integrate the attribute, the image and the written data of objects including the site one. The purpose of GSIS is to integrate such geo-spatial data as the situation of public facilities, land uses and its sketch and statistics which are scattered in every administration department. Additionally, GSIS can make users get the goo-spatial information easily through computer, and can also do it worthier. An integrated management system of transportation data is needed to improve the efficiency of road-related operations. This can be accomplished by analysing various operation about road management and the utilization of base maps. Thus, in this study, effective road facility information management system based on GSIS database was developed for the management of various types of drawings and data using in various tasks.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.7 no.2
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• pp.7-19
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• 1989

The developments in remote-sensing, digital mapping, and automation of land information system have provided the impetus for the increasing use of Digital Terrain Models in engineering planing and design. In this paper, an evaluation is made on tile method of accurate earth-volume determination in computerized road design using by Digital Terrain Models. The result of numerical test shows that the $BL_{in}$-1 Model is the most efficient model in Earth-volume determination of road design.

• Proceedings of the Korea Contents Association Conference
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• 2005.05a
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• pp.138-141
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• 2005

본 연구에서는 위성영상으로부터 정사투영 영상을 제작하고, 지상의 기준점 측량을 GCP를 이용하여 실시하여 경도, 위도 고도의 참조좌표를 정확히 수집하였다. 1:5,000 지형도를 디지타이징하여 만들어진 등고선도를 DEM으로 변환하여 고도별 RGB영상으로 화면에 보여지도록 하고, 각각의 경우에 대하여 제작된 정사투영 영상에 중첩해 봄으로써 제작된 정사투영영상의 정확도를 점검하여 수치지형도를 대신할 수 있는 3차원 영상지도를 제작하였다. 대상지역의 입체지형분석을 위한 3차원 입체 영상지도를 제작과 더불어 DEM을 이용한 지형의 경사도 분석과 방향분석, 지형표고모델, 다방향 입체영상을 생성할 수 있도록 하였다. 장차 국토계획 및 건설분야에서의 지형분석과 각종 구조물의 배치 및 관리, 하천 수계의 분포에 대한 댐 건설 최적지 선정, 도로계획선에 따른 각 방향의 조감도 제작, 토지 피복분류에 의한 토지이용과 지역개발계획 등 지역환경을 종합적으로 진단해 볼 수 있는 활용방안을 도출할 수 있는 적용실험을 하였다.

• Journal of Korean Society of Transportation
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• v.23 no.7 s.85
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• pp.17-33
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• 2005

Highway design speed is a very important design element which determines highway design level. When determining highway design speed, one would estimate it utilizing the most likelihood of design speed and vehicle operating speed relationship. Existing operating speed prediction models only include highway geometric characteristics and their impacts on speed, which usually can not consider the impact of highway design speed on surrounding roadway environment and land use pattern. If this happens, excessive highway construction cost and huge environmental impact can occur. In this research project, a new vehicle operating speed prediction model was developed which can reflect the effect of surrounding roadway environment into vehicle speed prediction. The followings are the research findings : Firstly, highway terrain types and land use pattern on national roads were classified and integrated into drivers' visual recognition pattern. This was performed using a data management software. Secondly, the developed highway terrain types and land use pattern were related to vehicle speeds and it was found that there were significant statistical differences among vehicle speed for each different terrain and land use pattern. Thirdly. the General Linear Model analysis was employed to analyze the effects of highway geometric features, terrain types, and land use patterns. For two-lane highway and four-lane highway tested in this research project, it was found that R squares were 0.67 and 0.85, respectively. Additionally an optimal highway design speed range table, based on this research project. was proposed for practical use. This table can be reliably used on South Korean national road design, but discretion is required for applying this table to other types of highways including provincial roads and municipal roads.

• Journal of Korean Society for Geospatial Information Science
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• v.20 no.2
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• pp.31-37
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• 2012

Because of road construction and expansion, Update of the road traffic facilities DB is steadily increased each year, and, Increasing drivers and cars, safety signs for traffic safety are required management and additional installation continuously. To update Safety Sign database promptly, we have developed auto recognition function of safety sign, and analyzed coordinates accuracy. The purpose of this study was to propose methods to update about road traffic facilities efficiently. For this purpose, omni-directional camera was calibrated for acquisition of 3-dimensional coordinates, integrated GPS/IMU/DMI system and applied image processing. In this experiment, we proposed a effective method to update database of road traffic facilities for digital map.

• 한국방재학회:학술대회논문집
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• 2007.02a
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• pp.458-461
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• 2007

This paper describes the cause and measure of road structures failures in Kangwon area for year 2006 rain fall. Localized rainfall due to abnormal climate generates rock or dirt flows in upper stream and leads, the road structure failure located on mountains terrane. Main cause of such failures erosion, debris-flow, insufficient supply of culvert drainage system in ravine areas. It is needed to enhance the design methodology of road-drainage system and the remediation technology of rock and dirt flows

• Journal of Cadastre & Land InformatiX
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• v.46 no.2
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• pp.93-105
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• 2016

Among 28 land Categories, 'road' is that most frequently established or transformed. Like that of other 27 land categories, the boundary of road should be defined by boundary making principles and then fixed by cadastral laws. But, some criteria to determine the land boundary, especially in boundary making rule which can be used by geographical features, is confused partly in Land Use Planning stages. Because the purpose of making any rules in fixing road boundary may be misinterpreted, the gap between law and real land boundary can be occurred. Those related rules in determining the land boundary must be improved urgently. Cut surface' or 'slope' should be conformed as a legal term and I suggest that 'Structures' must be changed to 'geographical features'.

• Journal of Korean Society for Geospatial Information Science
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• v.4 no.1 s.6
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• pp.43-55
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• 1996

The objective of this research is to design a digital map database structure supporting video images which is one of the fundamental elements of hypermap. In order to reach the research objective, the work includes the identification of the relationships between two dimensional digital map database and video elements. The proposed database model has functions for interactive browsing between video image frames and specific points on two dimensional digital map, fer connecting the map elements and features on video images. After that, the images and the database are transformed to the pilot system fer testing the map database structure. The pilot project results indicate that the map database structure can integrate functionally two dimensional digital map and video images.

• 한국지형공간정보학회:학술대회논문집
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• 2004.10a
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• pp.175-181
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• 2004

우리나라에서는 1995년부터 국가지리정보체계(NGIS)구축 기본계획을 수립하여 건설교통부, 정보통신부, 과학기술부 및 행정자치부 등 범국가적으로 2000년까지 제 1단계 사업을 마쳤으며, 2001년부터 제 2단계 사업을 추진 중에 있다. 하지만 국가지형 및 시설물 등이 하루가 다르게 변화하는 정보화 사회에서 다양한 객체에 대한 위치 및 속성정보의 획득, 저장, 관리, 활용을 위한 신속한 수치지도 수정갱신이 요구된다. 또한 도로시설물을 비롯한 다양한 지형지물정보는 공간정보를 다루는 도시, 교통, 물류, 환경 및 군사 분야 등 다양한 분야에서 의사결정 및 계획에 필수적으로 요구되는 정보이고 이와 같은 정보는 신속하고 정확하게 취득되어야 하며, 경제적이며, 효율적으로 정보를 획득하는 신기술을 적용한 작업방법론이 필요하다. 현재 국내에서도 신기술인 "차량탑재 모바일매핑 시스템(Mobile Mapping System : GPS-Van) 개발이 완료되었고, 이를 활용한 각종 지형공간정보의 수정 갱신 작업이 이루어지고 있기 때문에 이를 활용한 수치지도 수정갱신의 가능성에 대한 검토와 방법론에 대한 정립이 요구되고 있다. 따라서 본 연구에서는 국내에서 개발된 신기술인 GPS-Van을 이용한 수치지도 수정갱신을 위한 정확도 분석 및 오차의 영향 분석을 통하여 보다 높은 정밀도의 도로기반 수치지도 수정 갱신의 가능성 및 방안을 제시하고자 한다.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.15 no.2
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• pp.263-268
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• 1997

Software structure must be dynamic to support new geospatial information sources and their object-oriented implementation on the Web. JAVA is interactive, platform idependent and object-oriented language and meets all needs on Internet GSIS. This paper introduce JAVA based GIS program to manipulates various geographic data on Internet, communicating interactively and transfer real-time data between server and client. This and this program analysis roof detector in all part of Pusan area and indicates the traffic states, road surface conditions, weather information, shortest cut, and road names in JAVA client windows. Also this study shows various techniques in expression real time traffic informations.