• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2001.05a
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• pp.133-138
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• 2001

The high-speed data service is on the increase and on the development because of using the coaxial cable which hold the most part of subscriber's loop, the transmission rate in a subscriber line has influenced by an external-electromagnetic factor such as the falling of a thunderbolt and the electromagnetic induction on transmission line. this external environment gets the noise of a communications line and then has an influence to the transmission speed and quality for the high-speed data service. this paper makes an analysis of noise characteristic appeared a subscriber communications line, measures a transmission speed per each cable-distance and resolves these relationship by putting the noise, which has affected extensively the transmission quality of ADSL service, into a subscriber line.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2011.06a
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• pp.338-339
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• 2011

본 연구는 해양플랜트 지원선 중 작업자들에게 전용거주시설을 제공하는 생활바지선 거주구공간계획에 관한 연구이다. 생활바지선의 거주구는 '작업자영역', '서비스영역', '승무원영역', '업무영역'으로 공간을 분류할 수 있다. 본 연구에서는 현재 사용되고 있는 10척의 생활바지선 일반배치도(GA)를 조사하여 거주공간특성을 분석하였다. 또한 해양플랜트 거주구 설계시 가장 많이 참조되는 ABS, NORSOK 등 해외선급협회에서 제시하는 해양플랜트 거주구 공간설계지침을 분석하여 생활바지선에서 거주구 공간계획에 적용하기위한 설계지침을 제시하였다. 그리고 생활바지선 거주구 설계모델을 설정하고 모델을 대상으로 데크별 공간배치와 동선을 계획하였다. 마지막으로 거주구 설계모델의 객실, 식당, 주방, 휴게공간 그리고 위생시설 등 주요공간을 대상으로 공간계획을 실시하고 계획안을 제시하였다. 최근 국내 조선업계에서도 생활바지선에 대한 관심이 증가하고 있으나 거주구 공간설계기술의 부족으로 외국 설계업체에 의존하고 있는 형편이다. 따라서 우선 한국선급협회에서 본 연구결과를 기초 생활바지선 거주구 공간계획을 위한 설계지침을 시급히 만들어야만 한다.

• Journal of the Regional Association of Architectural Institute of Korea
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• v.20 no.6
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• pp.71-80
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• 2018

The path and visibility of nurses in general hospital wards have been treated as architectural planning factors. However, the analysis approach of existing studies shows limitations that only fixed physical elements are considered without considering the behavior of users using space. Consider factors for analysis of ward and models based on this study model. Select a case hospital to apply the analysis technique and conduct the nurse questionnaire and route survey of the hospital. Establish a framework for analysis model applied with the path of nurse movements. The analysis model applies to the case hospital. The analysis results are aggregated to derive design suggestion for reference to the spatial improvement of the ward. Visible visibility to observe the bedside in the nursing station, visibility to observe the beds in the nurse's path, and visibility to observe patients moving in the nurse's path were derived from visual access frequency and exposure frequency. The survey of nurses' movements at the site allowed the nurses to calculate the distance required to move. Reflecting the path of nurse movement, a model was presented for a comprehensive analysis of nursing distance and nursing visibility, which could lead to improvement in the observation and visibility of nurses and the layout of patient rooms or day rooms.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.11a
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• pp.152-155
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• 2021

최근 많은 이슈가 되고 있는 제 4 차 산업혁명 기술을 건설 분야에 적용하여 다양한 형태의 센서를 활용한 IoT 의 활용가치를 높이고 근로자의 위험사항을 사전에 예방함과 동시에 건설현장에서 IoT 기반 스마트 건설안전시스템 전호구축을 위한 아키텍처를 개발하는 것을 목적으로 하고 있다. 이를 위해 IoT 의 개념을 살펴보고, 현장 안전관리 프로세스를 근로자 편리성을 감안한 아키텍처로 전환연구를 하고자 한다. IoT 기반 스마트 건설안전시스템 구축을 위해서 활용 가능한 위험지역을 도식화하고, 적용 가능한 영역을 파악하였고, 다양한 사전예측분석 알고리즘을 활용하여 안전사고 예방에 관한 사전예측 유형을 분석하였다. 이를 바탕으로 위험지역에 대한 근로자의 동선을 파악한 후 위험지역에 사전정보 제공을 통한 건설현장의 IoT 기반 스마트 건설안전시스템을 전환해서 재해율 감소에 기여하고자 한다.

• Korean Institute of Interior Design Journal
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• v.19 no.4
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• pp.74-81
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• 2010

This study analyzed characteristics of visual circulation in the modern museum architecture while carrying out space syntax and visibility graph analysis side by side in order to solve problems of visitors' movement having been suggested as the point at issue at modern museum architecture that has become big scaled and layering so as to satisfy various social demands. Also, the result of this analysis is same as followings. First, visitors become to watch the exhibition with clear position that can make themselves in right allocation, and thus visual and perceptual confusions were shown as relatively low in case physical position and visual one were matched at major space of atrium type or mediation space. Second, it was appeared a lot at the museum having exhibition space of room type in case the physical position and visual one were not matched. Visual circulation in the exhibition space of room type has a merit of forming the circulation where free selection is possible. However, it have raised concerns that visual passageway of visitors could be in a stalemate or crash at the opening part, not at the exhibition hall. Third, though analysis of space syntax had a merit of analyzing total modern museum architectures having became compounded and big scaled, but it was dropped in reliability from the visual circulation's analysis that was decided by flows of space and time. In contrary, visibility graph analysis was shown as having a merit to analyzing the flows rather than that of total structure, and also appeared as being able to supplement the disadvantage of space syntax in methodology. Upon the above analysis, a lot of architectural elements such as allocation of exhibition hall, location of door and window etc. were appeared as affecting influences to forming visual circulation of visitors, not to mention of allocations of major space, mediation space, and exhibition one. Through this study, various possibilities of quantitative analysis on the visual circulation in the museum architectures can be confirmed. However, this study expects that in-depth subsequent researches objecting to various museums could be realized afterwards because there are still limitations in its analysis.

• Korean Association of Arts Management
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• no.59
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• pp.73-99
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• 2021

Free admission policies have been gradually extended for the public to use cultural facilities free of charge, which lowered the barriers to use those facilities and has a great effect on increasing visitor demands. However, the annual number of visitors which is open to the public isn't quite accurate and varies from institution to institution, which means just a head count. Especially people counter overestimates the number of visitors because it counts visitors in duplicate. Therefore, the purpose of this study is to prepare effective way of grasping the number of visitors using cultural infrastructure. First, comparable number of visitors should be measured by defining the notion of visitor clearly, which has been measured vaguely. Secondly, the problem of duplicate count, which is considered the most problematic, should be solved. Thirdly, the various analysis of visitor behavior should be conducted to provide a high-quality service. To work out the problems above, new measurement will be presented here. This study suggests a state-of-the-art wireless signal-based measurement that could eliminate the duplicate data by collecting MAC address -smart device's distinct signal value. And it also could analyze diverse visitor behaviors by understanding a flow of visitor traffic, duration of stay and revisitation. I would like to examine the possibility and effectiveness of this new measurement by testing it.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.43 no.6
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• pp.793-799
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• 2023

This study classifies the types of urban railway stations that reflect the location characteristics of urban railway stations, the structure and form of station taxes, and the number of users, and the level of inconvenience in the transfer movement line for users by station type, the number and connectivity of transfer information, and the level of transfer convenience facilities. The number of installations, conflicts between users, and transfer information signs were analyzed. As a result of data analysis, it was found that the factors that cause the most inconvenience to urban rail users when transferring are the length and curvature of the transfer line, pedestrian density and number of passengers in the transfer passage, presence or absence of transportation convenience facilities, and the size and height of transfer information letters. These transfer inconveniences were objectified, quantified, and presented as evaluation indicators that can measure the transfer convenience of urban railway stations. Additionally, an evaluation scale was developed to measure the service level for each evaluation indicator. The evaluation scale for each indicator presented six levels by applying linear interpolation based on the maximum and minimum values of data derived through field surveys. However, it is judged that a comprehensive evaluation of transfer convenience that combines the importance and weight of each convenience evaluation indicator should be established through future research.

• Korean Journal of Construction Engineering and Management
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• v.12 no.6
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• pp.160-167
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• 2011

An Analysis on the Pre-Feasibility Evaluation Factors of Activation for Welfare Facilities for the Residents in Apartment Building. The adapted research method of selected case five apartment building in D new town and carried out questionnaire survey to residents and user for draw items of feasibility evaluation. Drew items of feasibility evaluation classify as Plan section, Design section, and Operation section and evaluate the weight of each section utilizing analytical hierarchy process (AHP). Depending on the purpose and methods. The results of this study are as follows: Such as Plan section, Composition of Program Facility, User Charge Survey, Arrangement of Program Room were analyzed highest. Such as Design section, Arrangement of Program Room, Circulation planning, Educational Equipment were analyzed highest. And such as Operation section, Operation costs, Operation Plan, Review of Program Facility were analyzed highest.

• Proceedings of the KOR-KST Conference
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• 1998.10b
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• pp.311-311
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• 1998

일반적으로 교차로에서의 보행자 사고는 대부분이 횡단보도에서나 횡단보도 주변에서 발생하는 것이 많다. 이것은 운전자의 안전의식부족뿐만 아니라 보행자들이 교통법규를 지키지 않기 때문이다. 교통사고는 운전자나 보행자를 막론하고 안전의식 수준 및 안전시설의 질적 수준과 밀접한 관련이 있다. 특히 횡단보도 위치와 관련한 정지선에 대한 기준이 없어서 횡단보도 전후에 정지선이 2개가 설치된 곳이 많아 차량간의 사고를 유발하고, 보행자는 보행동선을 단축하기 위해 횡단보도 주변횡단이라는 위험한 행태를 유발하지만 이에 대한 연구나 대안제시가 이루어지지 않고 있다. 본 연구는 요인분석법이란 다변량 통계기법을 통해서 사고기록과 형태자료를 분석하였다. 사고기록은 정지선이 2개에서 1개로 변경된 25개 교차로에 대한 보행자와 차량의 유형별, 위치별, 피해정도별 사고기록을 조사 분석하고 행태분석은 현재 정지선이 2개인 곳과 기하구조가 유사한 정지선 1개인 곳을 하나의 쌍으로 해서 모두 8쌍(16개의 교차로 횡단보도)를 조사 분석하였으며, 마지막으로 설문조사를 통해서 보행자의 교통법규 준수와 인식정도에 대한 조사를 통해 보행자들의 인식과 행태조사를 통한 교통법규 준수 정도를 알아보았다. 사고자료의 분석을 통해서 첫째, 정지선이 2개인 교차로는 교차로내 차량사고, 접근부의 후면 추돌사고, 횡단보도에서 보행자사고가, 둘째, 정지선이 1개인 교차로는 유출부 차량사고가 많은 것으로 나타났으며, 행태자료의 분석을 통해서는 첫째, 정지선이 2개인 곳은 횡단보도를 이탈 또는 진입하면서 횡단하는 보행자, 점멸신호에 횡단 시작하는 보행자의 행태와 보행자 신호에 횡단보도를 통과하는 차량, 둘째, 정지선이 1개일 때는 횡단보도를 침범해서 정지하는 차량, 도로에 내려서서 기다리는 보행자가 많은 것으로 나타났다. 마지막으로 설문조사와 행태조사를 종합하면, 보행자들의 인식으로는 약 71%의 응답자와 점멸신호의 의미를 알고, 전체 응답자의 약 58%가 점멸신호에 건너지 않고 기다린다는 응답(교통법규준수)을 했으며, 실제 행태에서는 약 12.4%가 위반하는 것(87.6% 법규준수)으로 나타났다. 보행자들이 응답한 것보다 실제 행태에서는 더 많은 보행자가 교통법규를 준수하는 것으로 나타났으며, 횡단보도를 이용하는데 있어서 횡단보도를 침범하는 차량과 신호시간이 적다는 의견이 많았다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.35 no.5
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• pp.1111-1121
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• 2015

Roundabouts face a congestion problem when there are unbalanced traffic conditions, especially during peak times. The congestion at roundabouts results in long delay times and low level of service. Some research has addressed congestion problems of the metering roundabout, however, few studies have focused on the congestion issues of the double signals metering roundabout. This research bridges this gap through analyzing the congestion issues of the Old Belair double signals roundabout in Adelaide. The research proposes a new analysis method based on a four-nodes intersection in order for double signals roundabout analysis to be carried out as follows: firstly, at the modeling stage, a connection of four individual intersections, adjustment of lane geometry, input of directional traffic volumes, priority and phase time set up are proposed. Secondly, for calibration, PFF, critical gap, follow-up headway and extra bunching values have been applied. The results from the analysis show that the new method is able to analyze the delay time, level of service, degree of saturation and allow for further analysis.