• Proceedings of the KSR Conference
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• 2002.10a
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• pp.259-265
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• 2002

In this paper various information D/B on track and facilities, electric/communication equipment and safety equipment required to support the emergencies related to high-speed railway was implemented, the practical local information in the proximity of high-speed line was identified by drawing the roads accessible to the track on the numerical map, and the development and the application of the information providing system based on GIS for the purpose of emergency response and its support, which can be helpful to request the external organizations such as local authorities, police offices and fire brigades for the emergencies, was proceed.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2007.04a
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• pp.265-268
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• 2007

Structure safety inspection is executing periodically to apply with maintenance data of the structure. Because of the location of structure is appearing by measuring point and picture in the subway. It is difficult to track the accurate location of the inspected structure. Purpose of this paper is computerizing location and attribute of construction and searching efficiency by GIS.

• Proceedings of the KSRS Conference
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• 2002.10a
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• pp.553-558
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• 2002

Physical sensor model in pushbroom satellite images can be made from sensor modeling by rotation parameters and attitude parameters on the satellite track. These parameters are determined by the information obtained from GPS, INS, or star tracker. Provided from satellite image, an auxiliary data error is connected directly with an error of rotation parameters and attitude parameters. This paper analyzed how obtaining satellite images influenced errors of rotation parameters and attitude parameters. furthermore, for detailed analysis, this paper generated simulated satellite image, which was changed variously by rotation parameters and attitude parameters of satellite sensor model. Simulated satellite image is generated by using high-resolution digital aerial image and DEM (Digital Elevation Model) data. Moreover, this paper determined correlation of rotation parameter and attitude parameters through error analysis of simulated satellite image that was generated by various rotation parameters and attitude parameters.

• Journal of the Korean Geographical Society
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• v.47 no.6
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• pp.921-933
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• 2012

This paper tried to derive a GIS curriculum in geography and the estimation of the number of faculty members to teach GIS. To do this, geography departments of universities in Korea and the United States were compared based on the number of faculty members and the main structure of a GIS curriculum. Five universities of NCGIA and UCGIS in the United States and 27 universities in Korea were selected, and their GIS programs were analyzed on GIS curricula, the size of faculty, and program management. The US geography programs typically provide both GIS majors and GIS certificate programs, but Korean geography programs do not. At least, seven GIS courses(21 credits) are required for fulfillment of major degrees in the U.S., but only two courses(6 credits) are required in Korean geography programs. As far as the size of GIS faculty, it averages less than 25% of entire geography faculty in Korean universities, while it takes up about 31% in the U.S.. In this paper, the establishment of 19 GIS courses was suggested as a GIS curriculum for partial fulfillment of a geography major, and two GIS faculty members were recommended to maintain a stable GIS program of geography departments. The enhancement of GIS curricula and faculty size can provide geography graduates with more opportunities for employment and better react to diverse GIS-related public demands, which are important for the successful future of geography programs.

• Korean Journal of Geomatics
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• v.3 no.1
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• pp.7-14
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• 2003

For GIS to land and sea in Korea, GIS on land was almost completed with big cities by NGIS(National Geographic Information System) business. However, MGIS(Marine Geographic Information System) being constructed by the National Oceanographic Research Institute is still constructing geography information and definition of attribute information and real condition. We are being studied on research to get maximized the ripple effect linking GPS and Navigation techniques on GIS. GPS in accuracy is divided into navigation and precise surveying equipment. Now, GPS technology has been developed very much and low price GPS equipments are introducing. But expense on GPS equipment is high yet. Therefore, GPS equipment for navigation is used on cheap GPS equipment in a car or ship. In this paper, the author used algorithm to convert ellipsoid coordinate between WGS84 and Bessel ellipsoid and to analyze map projection between BESSEL ellipsoid and UTM plane coordinate system. And the author developed ship navigation system with cheap GPS equipment using algorithm of ellipsoid conversion and map projection. The author proposed the necessity on constructing MGIS to manage many ships.

• Proceedings of the KSR Conference
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• 2002.10a
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• pp.727-732
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• 2002

This study is to develop the model of alignment optimization based on design criteria by approaching through alignment of railway design and problems in economy, environment and technology for satisfying traffic volume of the main roads caused by economical and social developments. Now, Geographic Information System isn't applied when designing a present railway in home. And the design of railway alignment is still set on importance of transition curves and cant according to passenger comfort in abroad so tile study of railway alignment is at initiation phase so far. This paper is about decision of optimal alignment between two stations such as starting point and ending point automatically using GIS in optimization of railway alignment. A route between Sungsan city and Shinpung city is the training area and the study compared and evaluated optimal railway route by GIS automatically with present railway route designed. Present optimal fomulas was used in this study for optimization of railway alignment. The model of optimization of railway alignment was developed through topographical elements and it was mentioned by the model of road alignment because of the similarity in design of alignment. But the design of lateral track irregularities, cant fur passenger comfort and motion sickness fellowed by train rolling have to be considered more. Anyway, this study farmed the basis of using GIS and the study should be keep going on in the future.

• Journal of the Korean Geographical Society
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• v.37 no.4
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• pp.403-424
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• 2002

Internet GIS sites are currently being emersed as one of important places to acquire spatial information in stead of traditional paper map. This paper is intended to identify critical factors in evaluating internet GIS site quality. While there should be a considerable number and variety of factors associated with internet GIS site quality, this paper focuses on the site characteristics that generate visitor satisfaction. After carefully reviewing the previous literature of general website evaluation, four criteria that are critical to internet GIS site quality were identified: (1) contents (2) design (3) navigation (4) spatial analysis. An empirical study for a case study site has been conducted to confirm the validity for the four evaluation factors. A site diagnosis by the criteria provided many valuable information for Web site quality. For example, it was found that many symbols in the site made the visitors confusing and navigation interface was not very user-friendly to track required positional information due to inconsistency in terms of cartographic concept. The results indicate that the evaluation criteria may be used not only as a tool to evaluate internet GIS sites, but also as a checklist to improve the quality of a web site that is under development and requires remodelling. As a result, the research findings have established the new concept of ‘the quality assurance of the internet GIS site’, proposed as an initial aim of this paper Many of the issues unresolved in this project could be improved, based on the understanding of the four criteria suggested in this paper.

• ETRI Journal
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• v.37 no.2
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• pp.306-316
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• 2015

In today's highly competitive business environment, most companies try to manage their logistics function strategically to satisfy their orders as cost-effectively as possible and maximize their present and future profits. In this environment, logistics process visibility is essential to companies wishing to competently track components, parts, or products in transit from the original suppliers to the final destinations. Thus, it is important to provide instantly and easily recognizable information about such visibility to all stakeholders, especially customers. To ensure a high-level geographical visibility of the logistics processes, in this paper, we propose a way of implementing a GIS-based logistics process monitoring environment and of integrating a performer's work processing environment on the monitoring system. Additionally, to provide more abundant monitoring information, we describe a procedure for creating and processing various monitoring information, which are represented as ECA rules in this work processing environment. Therefore, it is possible to provide intuitive and visible monitoring information regarding the logistics process and resource elements.

• Journal of Korea Water Resources Association
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• v.47 no.12
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• pp.1145-1154
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• 2014

In recent years, as frequency and intensity of severe weather disasters such as flash flood have been increasing, providing accurate and prompt information to the public is very important and needs of user-friendly monitoring/warning system are growing. This paper introduces a method that re-produces radar observations as multimedia contents and applies reproduced data to mesh-up services. In addition, a accurate GIS matching technique to help to track the exact location going on serious atmospheric phenomena is presented. The proposed method create multimedia contents having structures such as two dimensional images, vector graphics or three dimensional volume data by re-producing various radar variables obtained from a weather radar. After then, the multimedia formatted weather radar data are matched with various detailed raster or vector GIS map platform. Results of simulation test with various scenarios indicate that the display system based on the proposed method can support for users to figure out easily and intuitively routes and degrees of risk of severe weather. We expect that this technique can also help for emergency manager to interpret radar observations properly and to forecast meteorological disasters more effectively.

• Journal of Korea Spatial Information System Society
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• v.10 no.2
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• pp.25-33
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• 2008

The aim of this research was to track the appropriate path favorable to urban development when finding small streams which had been destroyed during the process of urbanization and restoring the streams to a natural flow. This research located the targeted streams in the urban area by using GIS, and designated 3 main factors in restoring small streams: altitude, the usage of land, and land prices. After analyzing the possibilities and outcomes of each factor, the study found the most suitable remedy reflecting those 3 factors. Since there are various effects on stream restoration, based on these 3 factors, the study found and used the most viable factor in accordance with its importance. Using this template, the study developed a method to track the most appropriate restoration path. The study results will contribute to finding, and the restoration of disappeared streams for making more pleasant urban life and an environmentally-friendly city.