• KSII Transactions on Internet and Information Systems (TIIS)
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• 제5권5호
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• pp.938-958
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• 2011

Ubiquitous web services have been expanding in various business areas with the evolution of wireless Internet technologies, accessible and usable with a variety of mobile Internet devices such as smart phones. Ubiquitous mobile-web information services can be evaluated for accessibility and usability with the mobile Internet devices interacting with mobile-web information servers. In human mobile-web activity, a web server could be a unified center for mobile-web interaction services as well as for real-time estimation and analysis of mobile-web interaction sessions. We present a real-time estimation and analysis scheme for time-based accessibility and usability in ubiquitous mobile-web services. With real-time estimation/analysis of sessions in a mobile-web server, we estimated the time-based accessibility and usability for comparison between different web services as well as for applications in mobile cloud computing services. We present empirical results based on the implementation of the real-time estimation/analysis scheme.

• 대한교통학회지
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• 제10권3호
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• pp.43-58
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• 1992

The purpose of this study is to analyse the changes in inter-regional accessibility according to the highway construction. Accessibility of the physical distance(APD), accessibility of the time distance(ATD) and accessibility of the weighted physical distance(AWPD), accessibility of the weighted time distance(AWTD) are used as accessibility index. The result shows that APD, ATD, AWPD and AWTD are improved in the Chechon, Sangju, Chomchon region by the construction of Chongju-Sangju Highway and Taegu-Chunchon Highway. Taechon, Sosan, Kunsan region also improved by the construction of Sohaean Highway and Konju-Sohaean Highway.

• 한국문헌정보학회지
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• 제55권4호
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• pp.67-87
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• 2021

공공도서관 접근성은 도서관의 이용에 직접적인 영향을 끼치며, 접근성의 불균형적인 분포는 도서관 서비스의 공평한 제공을 제한하는 결정적인 요인이 된다. 이러한 관점에 근거하여 본 연구는 부산지역 공공도서관의 공간적 접근성을 분석하고, 공간회귀분석을 통해 공공도서관의 접근성 영향요인을 분석하였다. 분석 결과, 부산지역 공공도서관 접근성은 지역별로 편차가 크게 나타나고 있었으며, 공공도서관이 인구수나 대중교통 이용과 무관하게 입지하고 있을 뿐 아니라 사회적 형평성 측면에서도 공공도서관 입지의 효율성이 떨어지는 것으로 볼 수 있었다. 이 연구의 결과를 통해 부산지역 공공도서관 접근성 현황을 이해하고, 접근성에 영향을 미치는 요인을 파악할 수 있으며, 향후 공공도서관 접근성 격차 완화 및 신규 입지 선정을 위한 기초자료로 활용할 수 있을 것으로 기대한다.

• 국토계획
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• 제54권6호
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• pp.68-79
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• 2019

The purpose of this study is to propose a transit accessibility analysis method based on temporal variability of travel time. In this study, transit accessibility was defined in three levels (in transit route, spot and region unit) to present findings from different spatial scopes. Recently, Jeju special self-governing province reorganized bus system of the island. To compare transit accessibility before and after transit policy implementation, the reorganized bus system of Jeju special self-governing province was selected as a case study. This study used General Transit Feed Specification (GTFS) data format as storage public transit information, and calculated travel time using ArcGIS GTFS networks analysis tools. In the analysis of individual transit route level, we found the 3 types of accessibility changes which is increments, no significant changes and reductions and these results come from transit route change (number of transfer, distance change) rather than changes of vehicle interval. We found increases of inflow and outflow speed in most target spots and overall transit accessibility has been substantially improved in Jeju island. This study implies that accounting for temporal variability of travel time in accessibility analysis can result in more useful and sophisticated accessibility information in decision-making processes.

• 한국문헌정보학회지
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• 제42권3호
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• pp.345-364
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• 2008

웹을 중심으로 한 지식정보 서비스의 비중과 중요성은 지속적으로 증가하고 있다. 특히 공공적 성격을 갖는 국립도서관의 경우에는 보편적 서비스를 중심으로 한 평등한 접근성이 기본적으로 보장될 것이 요구된다. 본 연구에서는 웹 접근성 평가도구인 KADO-WAH를 활용하여 16개의 주요 국가의 국립도서관을 선정하여 웹 접근성을 점검하고 비교분석하였다. 이를 통하여 웹 접근성의 국가별 특징과 차이점을 파악하고 향후 방향을 제시하였다.

• 대한교통학회지
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• 제7권1호
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• pp.57-70
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• 1989

The purpose of study is to analyze the spatial population distribution and accessibility of network in urban areas. This study examines the forty-six political subdivision cities in Korea at the end of 1983, except the four metrpolitans (Seoul, Pusan, Daeku and Incheon). Evaluation indexes are classified the spatial pupulation distribution and accessibility of network. To analyze the cities, 10 indexes and the statistical techniques such as descriptive analysis, correlation analysis, factor analysis and cluster analysis were used. According to the results of cluster analysis, 15 cities (Ulsasn, Suwon, Bucheon, Chungju and etc.) are classified dispersed cities and another 15 cities (Kwangju, Daejun, Sungnam, Mokpo and etc.) are classified concentrated cities.

• Journal of Forest and Environmental Science
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• 제32권1호
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• pp.1-9
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• 2016

Accessibility of urban green space, as an important index of evaluating the service level of urban green space, not only shows the resident's access to green space, but also reflects the environment quality of urban living. Since the quantity, area and space distribution of the patches in urban green space directly affect the function of urban green space and the quality of urban environment, the research on the accessibility of urban green space holds great significance to improve the service of urban green space and the living environment quality. Based on GIS software, this research uses the road network and the population distribution data of Nanjing's city proper to conduct quantitative analysis of the accessibility of park green space and the convenience for residents to travel under different forms of transportation. After the case analysis, the author tests the application of road network in studying the accessibility of urban park green space and proposes a GIS-based method to study the accessibility and the rational layout of urban green space.

• 정보과학회 논문지
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• 제41권12호
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• pp.1099-1109
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• 2014

웹 접근성 평가 도구는 웹 사이트가 웹 접근성 지침을 잘 지키고 있는지 검사하는 도구이다. 국내외 법과 제도가 마련된 이후 지침 준수여부를 검사하는 도구가 많이 나왔지만, 대부분 동적으로 페이지를 수집해서 분석하는 방법을 사용한다. 특히 자동화된 도구들은 페이지를 수집한 후에 분석하는데, 실행환경이나 접근권한의 문제로 수집하지 못해서 분석결과에서 빠지는 경우가 발생할 수 있다. 본 연구는 기존 방법과 달리 정적으로 분석하여 웹 접근성을 평가하는 방법을 제안한다. 정적인 분석방법은 실행 가능한 모든 경로를 고려하기 때문에 놓치는 페이지 없이 분석할 수 있다. 요약해석기법에 파싱이론을 접목한 요약파싱 기술을 사용해서 동적으로 생성될 웹 페이지의 웹 접근성을 정적으로 분석하는 도구를 개발하였다. 실험 대상 PHP 프로그램을 제안하는 연구방법으로 개발한 도구와 비교 대상 도구에서 분석한 결과를 비교해서 비교 대상 도구에서는 접근권한이나 실행경로 등의 문제로 분석하지 못하고 놓치는 웹 페이지가 있음을 확인하였다.

• 한국병원경영학회지
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• 제29권3호
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• pp.54-69
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• 2024

Purposes: This study aims to analyze the location patterns, concentration, and accessibility of clinics in Seoul with the grids of a geographic information system(GIS) and provide useful indicators for research on hospital and clinic management and policies based on the results. The study especially sets out to identify areas falling behind in the service of the essential medical care departments based on an analysis with 250m×250m grids and contribute to efficient medical business management and public healthcare policies based on the results. Methodology: The study analyzed clinics in Seoul in terms of concentration, distribution and clustering patterns, accessibility, and hot spots by dividing the entire city into 500m×500m cells and generating grids. The accessibility analysis for the essential medical care departments was especially in detail based on grids in a 250m×250m cell size. Findings: The Herfindahl results show that plastic surgery and rehabilitation medicine recorded the highest concentration level. General medicine and dermatology recorded the highest Moran's I value, and internal medicine was the highest in hot spots. Obstetrics and gynecology capable of child delivery showed considerably lower accessibility in the grids corresponding to Gangseo-gu, Yangcheon-gu, and Gwanak-gu. Surgery had low accessibility in the grids corresponding to the northern parts of Gangseo-gu for the total population. Practical Implication: Unlike previous studies whose analyses covered wide areas, the present study examined minute spatial patterns, concentration, and accessibility based on an analysis with 500m×500m or 250m×250m grids. Based on its findings, the study expects a more minute analysis for future research on medical business management and policies.

• 한국전자통신학회논문지
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• 제10권1호
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• pp.149-156
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• 2015

본 논문은 재난대응과 관련이 있는 기관 및 단체의 웹 접근성을 평가 분석한다. 웹 접근성의 법률적 시행에 따라 재난발생의 위급상황에 직간접으로 관여하는 기관 및 단체의 웹 사이트와 콘텐츠도 기준이상의 웹 접근성의 준수 되어야 하기 때문이다. 재난대응기관 및 유관단체의 구체적인 웹 접근성 준수 실태 파악을 위해 평가 도구로 K-WAH4.4를 적용하였으며, 웹 콘텐츠 접근성 지침 2.0에 따라 해당 웹 사이트의 6개 세부지침에 대한 준수가 61.8%로 저조함을 보이고, 웹 접근성을 높이기 위한 개선의 필요성을 제기한다.