• Journal of The Korea Institute of Healthcare Architecture
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• v.15 no.1
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• pp.33-40
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• 2009

This study aims to plan connecting living facilities considering on the Barrier Free Walking of the disabled and the elderly in the residential area. We had found several physical problems on the pedestrian's way that becomes the major factor of disturbing the barrier free movement for using living facilities in the local area by investigations and enquetes. We had suggested the arrangement method for these physical problems on the pedestrian's way and building the ideal area for living facilities by the disposition stages with the result of investigations and enquetes. After these process, we had planned connecting living facilities considering on the Barrier Free Walking of the disabled and the elderly in the residential area.

• Journal of the Korean Institute of Educational Facilities
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• v.14 no.3
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• pp.92-96
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• 2007

• Journal of The Korea Institute of Healthcare Architecture
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• v.17 no.3
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• pp.43-51
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• 2011

The mobility and accessibility enhancement is gradually becoming a global interest due to the growth in the aging population and concerns about people with disabilities. The main purpose of this study is to know the current situation in barrier-free level in railroad facilities in order to allow the mobility handicapped to travel in a safe and convenient manner. The research has started with investigating current situation for the mobility handicapped people and explores the needs of barrier-free facilities. 84 domestic railroad facilities were evaluated based on assessment tool developed from the mobility handicapped act. As a result, the fact that the mobility handicapped experienced limited accessibility due to various types of obstacles in the facilities was discovered. Based on the evaluation, obstacles in the facilities were analyzed and categorized by specific dimensions, users' accessibility, mobility, usability, and clarity (way-finding). This study suggests barrier-free design for passenger facilities focused on train station. Because mobility and accessibility are emphasized in current society, improvement of the mobility handicapped' movement should be considered. Barrier-free design for passenger facilities should be realized throughout comprehending the reasons why these obstacles occur in the facilities not using installation convenience facilities. This study has meaning in finding out the obstacles in each cause of occurrence(accessibility, mobility, usability, and clarity (way-finding)).

• Journal of The Korea Institute of Healthcare Architecture
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• v.16 no.2
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• pp.29-36
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• 2010

Recently, the system that can eliminate discrimination and barrier to disabled, ensure the substantial independence of disabled and help participation in community of disabled is required. Therefore, the purpose of this study is 'construction of the Barrier-free environment' which members of societies included the disabled can live safely in the daily living environment. To achieve this result, this study is shown establishment and complementary direction of the policy related convenient facilities by comparing between domestic and international policy of the convenient facilities. The results of this study are as follows; Firstly, among the conflicting part between related laws and design standards shold be constantly supplemented. Secondly, policy to promote convenient in residential part is needed. Thirdly, composition of the organization that can support professional housing reconstruction is required. Fourthly, from early stage of policy making, not only opinion reflection of users but also maintenance of convenient facilities, continuous maintenance plan and making a policy for verification system is needed. Finally, when the revision of the existing policies or new policies undergo, 'Barrier-free perspective' should be considered.

• Asian Journal of Atmospheric Environment
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• v.10 no.3
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• pp.125-136
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• 2016

In this study, the effects of the mesh barrier on the free dispersion of ammonia were numerically investigated under different atmospheric conditions. This study presents the detail and flow feature of the dispersion of ammonia through the mesh barrier on various free stream conditions to decline and limit the toxic danger of the ammonia. It is assumed that the dispersion of the ammonia occurred through the leakage in the pipeline. Parametric studies were conducted on the performance of the mesh barrier by using the Reynolds-averaged Navier-Stokes equations with realizable k-${\varepsilon}$ turbulence model. Numerical simulations of ammonia dispersion in the presence of mesh barrier revealed significant results in a fully turbulent free stream condition. The results clearly show that the flow behavior was found to be a direct result of mesh size and ammonia dispersion is highly influenced by these changes in flow patterns in downstream. In fact, the flow regime becomes laminar as flow passes through mesh barrier. According to the results, the mesh barrier decreased the maximum concentration of the ammonia gas and limited the risk zone (more than 500 ppm) lower than 2 m height. Furthermore, a significant reduction occurs in the slope of the upper boundary of $NH_3$ risk zone distribution at downstream when a mesh barrier is presented. Thus, this device highly restricts the leak distribution of ammonia in the industrial plan.

• Journal of The Korea Institute of Healthcare Architecture
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• v.26 no.2
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• pp.31-38
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• 2020

Purpose: The ramp is an important facility for the barrier free access and vertical circulation of users of various buildings, including users of walker, wheelchair users, stroller users, and baggage carriers. The installation standards for ramps in Korea have various problems during construction and BF certification. It is necessary to improve the criteria for ensuring practical mobility and safety. Method: Korean standard, International Standard(ISO 21542, 2011), German Standard(DIN 18040-1, 2010), Austrian Standard(OENORM B 1600, 2017), Swiss Standard(Norm SIA 500, 2009), Canadian Standard(Building Standards Guide, 2017), American Standard(ADA Standards, 2010) were investigated and analyzed. A comprehensive improvement of the ramp installation standards is proposed. Results: The ramp is a necessary facility for the barrier free access and vertical circulation of the disabled. It shall be installed with comprehensive consideration of the appropriate slope of the ramp, the distance of the continuous slope, the handle and upstand for pedestrian safety. In order to improve convenience, setting the proper slope and limiting the length of the slope are very important, and improvements are required to the levels presented by international and foreign standards. The unclear standards of Korean law and BF certification standards should be clearly improved so as not to be misinterpreted in construction and Barrier Free Certification. Implication: International and foreign standards should be reviewed to ensure practical mobility and safety. And comprehensive improvement measures should be presented through continuous research.

• KIEAE Journal
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• v.8 no.2
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• pp.65-70
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• 2008

Recently, there has been growing interest in barrier-free design which makes safe and convenient space for every pedestrian, not only the non-disabled but also the disabled. The purpose of this study is to suggest the data on the pavement materials of barrier-free pedestrian environment in view of universal design. In order to this, the research is focused on evaluating the visual preference and preference factors for pavement scenery, which can be changed by pavement materials. And this research is also comparing the visual preference and preference factors of the disabled with that of the non-disabled. A multi-regression analysis method is adopted to analyse the correlation between the visual preference for pavement scenery and preference factors in this study. The result of this analysis is as follows. Firstly, there are some differences of visual preference for the pavement material between the disabled and the non-disabled. Secondly, independent variables influencing on preference are similar between two groups. Thirdly, there are some differences in the priority of preference between the disabled and the non-disabled. This study will contribute to the field of barrier-free design and sustainable development projects in order to maximize the human being's satisfaction.

• Korean Journal of Digital Imaging in Medicine
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• v.12 no.1
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• pp.15-18
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• 2010

Main component of radiography barrier aprons is lead. To manufacture a lead-free barrier sheath, barium sulfate and organic iodine-based chemicals should be mixed with rubber. Barrier capacity was tested in the medical field. To improve adaptation of rubber with the mixture, raw materials went through milling, agitation, and extruding processes. Three sheaths were manufactured with 30%, 80%, and 120% sulfate barium, respectively. This study found 10% lower barrier capacity of lead-free barrier than the traditional lead-containing rubber sheath. Problems, however, were confronted during the agitation and extruding processes. Mixing with rubber was a technically demanding job. Inconsistent depth, problems with thermal processing and dissipation were encountered as well.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.13 no.2
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• pp.217-223
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• 2013

Population aging is a shift in the distribution of a country's population towards older ages. This is usually reflected in an increase in the population's mean and median ages, a decline in the proportion of the population composed of children, and a rise in the proportion of the population that is elderly. Population ageing is widespread across the world. Barrier-free or Design for All concept consists of modifying buildings or facilities so that they can be used by people who are disabled or have physical impairments. Design for All criteria are aimed at ensuring that everyone can participate in the Information society. Safety-related products being easy to adapt according to different needs, or using standardized interfaces that can be accessed simply by using assistive technology. To this end, policy makers and service providers, especially in the ubiquitous technologies, produce new technologies, products, services and applications for pedestrians.

• Journal of The Korea Institute of Healthcare Architecture
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• v.16 no.1
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• pp.65-75
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• 2010

This is a comparative study mainly on foreign countries' domestic standards and laws on barrier free housing construction that can be applied to the dwelling of elderly friendly apartment housing. Eight countries - the United States, Germany, Canada, Switzerland, the United Kingdom, Australia, Japan, and China - were reviewed as foreign cases. The analyzed subjects were design standards only for the disabled and the aged. To compare barrier-free guides of the eight countries, each barrier-free guide on three space units (entrance, bedroom, living room) was divided into 11 design items and 36 design factors. The comparative analysis on foreign cases was based on the design guide according to Korea's KS P 1509 (principle and recommendation for designing dimension of dwelling in consideration of the elderly). Some factors -if with dimensions- were compared by means of the skewness of distribution. In the analysis result, there were not only common standards for the nine countries such as a dimension of the space for wheelchair movement but also different standards such as heights of outlets and horizontal lengths of bathtub grab bars. The detailed analysis shows that it is urgently necessary to prepare new domestic national design standards for 8 factors that foreign countries already have. It is also needed to immediately prepare dimension standards for the design factors, which have no detailed dimensions but only national guides, in consideration for anthropometric dimension.