• International Journal of Highway Engineering
• /
• v.18 no.3
• /
• pp.127-134
• /
• 2016

PURPOSES : Low visibility caused by dark surroundings at nighttime affects the likelihood of accidents, and various efforts, such as installing road safety facilities, have been made to reduce accidents at night. Despite these efforts, the nighttime severity index (SI) in Korea was higher than the daytime SI during 2011-2014. This study determined the factors affecting daytime and nighttime accident severity through a discriminant analysis. METHODS : Discriminant analysis. RESULTS : First, drowsiness, lack of attention, and lighting facilities affected both daytime and nighttime accident severity. Accidents were found to be caused by a low ability to recognize the driving conditions and a low obstacle avoidance capability. Second, road conditions and speeding affected only the daytime accident severity. Third, failure to maintain a safe distance significantly affected daytime accident severity and nonsignificantly affected nighttime accident severity. The majority of such accidents were caused by rear-end collisions of vehicles driving in the same direction; given the low relative speed difference in such cases, the shock imparted by the accidents was minimal. CONCLUSIONS : Accidents caused by a failure to maintain a safe distance has lower severity than do accidents caused by other factors.

• Journal of the Korean Institute of Educational Facilities
• /
• v.23 no.6
• /
• pp.3-10
• /
• 2016

University campus is confronted with a variety of educational circumstances. U-Campus and the changes in students' academic activities demand a remodeling of university campus. The purpose of this study is planning direction for a remodeling space in university. This study in particular focus on indoor student lounges for the students. A survey asked students about a preference of indoor student lounges. Four preferences; the physical characteristics, preference of furnitures and lighting, preference of behaviors and preference of space programs are classified through the analysis on advanced studies. The results show not only students' preference but also a preference of each four different departments students; Social science, Physical education, Natural sciences and Engineering. In conclusion, this study will suggest a concrete plan for the future direction of the indoor student lounges at this point increased the importance of the university indoor student lounges.

• Journal of the Korean Institute of Educational Facilities
• /
• v.21 no.2
• /
• pp.33-39
• /
• 2014

In the case of low-rise buildings in seismic performance evaluation, lateral force resistance of the pillars affects the seismic performance of the building. Evaluation of the seismic performance of the column is determined by the holding performance is evaluated by comparing the shear strength and bending strength it was destroyed bylow intensity. In case of the school building, in order to install the large windows for ventilation and lighting of the partition walls are located between the pillars. The case of the pillars of these, shear failure occurs in the event of an earthquake is often, in the seismic performance evaluation, partition wall and the wall of the shim is evaluated ignoring, pillar of the general pillars If you have to calculate the results of the seismic performance distorted that are destroyed by bending behavior can be evaluated as often. Results of the study, when assessed by distinguishing the effective length of the column, it was found that when a seismic load is applied, it is possible to accurately predict the failure mode, reliable results of seismic performance evaluation of the school building.

• Journal of the Korean Institute of Educational Facilities
• /
• v.18 no.3
• /
• pp.23-33
• /
• 2011

This study investigates the evaluation on simple comparison and seeking hidden figures works under LED illumination conditions according to three types of color temperatures (7000K, 5000K, 3000K) in the classroom, Since the objective of this study is to develop an electric lighting conditions suitable for students in the classroom, the performance of concentration and visual discrimination by students under three types of LED illumination conditions were analyzed. The 4 kinds of simple tests concerning with concentration and 2 types of tests for visual discrimination were developed, and test results under natural light and LED illumination by 3 types of color temperatures were analyzed. There were differences on concentration as well as visual discrimination performance in most cases by t-test ($p{\leq}0.05$). For further analysis among three types of color temperatures and natural light, ANOVA tests were performed. The test results shows that illumination condition plays an important role when students try to concentrate on simple comparison of characters, figures or colors and seek hidden figures. The experimental results of this study might be applied to designing better luminous environment.

• Journal of the Korean Institute of Educational Facilities
• /
• v.26 no.3
• /
• pp.33-41
• /
• 2019

As the information age matures, the learning style of youth is changing rapidly. Students study at a variety of places such as cafe or lobbies utilizing various digital learning devices. Along with the place changes, learning methods are also changing. Student-centered learning methods such as smart learning, collaborative learning, and activity-based learning are increasingly being utilized instead of the traditional instructor-centered learning in which knowledge is unilaterally delivered. Accordingly, many universities are remodeling central libraries, and they are also transforming lobby spaces of the college buildings into simple but useful learning spaces. In this study, we analyze the characteristics of learning spaces in universities from the standpoint of the students. According to the analysis, overall satisfaction is high in terms of comfortable physical learning environments such as Wi-Fi, furniture, lighting, etc. But the spaces are still optimized for individual and intensive learning. There seems to be a lack of effort to support collaborative learning or activity-based learning. This observation is confirmed by the characteristics of the central library, and it is considered that the reason why the college buildings are preferred by students is that college buildings are more suitable for collaborative or activity-based learning than libraries.

• Journal of the Architectural Institute of Korea Planning & Design
• /
• v.36 no.1
• /
• pp.113-124
• /
• 2020

The purpose of this study is to suggest an improvement for the CPTED(Crime Prevention Through Environmental Design) guidelines for the urban linear park. We analysed the Changjeon-dong section of Gyeongui Line Forest Park into 12 sub-areas and evaluated CPTED design applied on the park based on analysis framework derived from 15 precedent studies by conducting on-site observations. Both surveys and in-depth interviews on users of the park were conducted and the results of analysis on the evaluation from users and the on-site observation were compared. We found that the lighting condition and the height of wall and trees at the park boundaries are very important to insure natural surveillance since the adjacent areas are easy to be hidden from passers-by and subject to invasion and threat of crime while protecting the privacy of residents on the boundary. There should be improvement on management facilities and crime prevention facilities for more safe and convenient use of the linear park and the adjacent commercial use during nighttime also need to be managed for conflicts between various type of users.

• Journal of the Korean Institute of Educational Facilities
• /
• v.25 no.5
• /
• pp.3-12
• /
• 2018

The purpose of this study is to examine the degree of appropriateness of using design quality indicators for the educational building, and complements for design quality indicators. For doing this, each items of the Korean educational building design indicator was validated by teachers, school staff and an education officer. First, School Personnel and Teachers considered indicators for the classroom designed for general subjects as being valid. However, in terms of indicators for the outside space, they thought of them as not being valid. In particular, it seemed that school staff would have a passive attitude toward the open of the school facility for the local society. It is judged that there happens an adverse effect caused by the open of the school facility for the local society in the educational environment of the school. Second, Education Office Supervisors thought that eco-friendly indicators, LED lighting, an outer wall, and widows and doors had a high validity. On the contrary, he viewed the validity of a rainwater retention basin as being low, which was likely because he rarely had expertise on the construction. When it comes to the indicator of technology capability, ultrahigh-speed information network was seen as being valid, and the indicator of economic feasibility had high validity on maintenance and durability. Third, compared to groups of Teachers and School Personnel, the group of education officers presented high validity of indicators. Validity of indicators might be differently showed because different items on indicators were measured. However, it is speculated that Education Office Supervisors mostly acknowledged the validity of indicators. Fourth, a majority of Teachers, School staff, and Education Office Supervisors were favor of the system of the evaluation accreditation for school facilities since it played a guide role in improving the quality of school. In order to settle the system of the evaluation accreditation for school facilities, it is most important that institutions in the local society which are publicly reliable should participate in the phase of designing the system of the evaluation accreditation for school facilities. In sum, overall respondents agreed with the system of the evaluation accreditation for school facilities but were aware that reliable organizations in public would need to take part in planning the system of the evaluation accreditation for school facilities from the beginning.

• Journal of Korean Society of Transportation
• /
• v.22 no.4 s.75
• /
• pp.97-106
• /
• 2004

It is a Known fact that driving through long tunnel increases possibility of traffic accident because of psychological feeling of insecurity and dispersion of drivers' concentration since driving in narrow and limited space for a longtime. It, therefore, results in raising transportation and environment problems, such as traffic accident difficult to be properly dealt with and ventilation. This study aims at proposing a method of augmenting driving amenity by improving the internal lighting facilities in the tunnel. The study is conducted by investigating internal landscapes of tunnels by lighting colors, which are currently being operated. The Color Planning System (CPS), developed by SHARP Co. Ltd, is exploited for selecting adjective that express the sensitivity image on lighting colors. The CPS is an example that applies to sensitivity of human body for products design development. The CPS takes the following process to define the color : 1) expressing "Pvoduct's Image" as "A Word (adjective)" and 2) referring "A Word" to "Image Scale", and 3) determining the color through this "Image Panel". The study is processed by making a questionnaire using the semantic differential (SD) scale, grasping the consciousness structure of experimental persons through the Factor Analysis, and building a model in which dependent variable is "Degree of Preference" about internal landscape in tunnel using LISREL(LInear Structural RELations).

• The Journal of the Convergence on Culture Technology
• /
• v.3 no.4
• /
• pp.181-184
• /
• 2017

Korea is the world's top ten energy consumer, relying on foreign imports for 97% of its total energy. In 2007, energy imports amounted to US $ 95 billion, accounting for 26.6% of total imports. Thus, fundamental and long-term countermeasures against the same energy crisis It is a fact that is required. Despite the fact that the world is moving rapidly around the world in response to energy saving and low-carbon economic era, domestic movements are relatively slow. In this paper, we developed an IoT data collection device (Gateway) to control Light Things (lighting, signage, display, etc.) built in medium and large facilities under the assumption of hospital facilities, We propose the Light Things control algorithm and data acquisition (Gateway) development technology.

• Culinary science and hospitality research
• /
• v.17 no.4
• /
• pp.88-103
• /
• 2011

The goal of this study is to improve food coordination, which is one of the factors of menu quality, by surveying satisfaction of students who visit a university cafeteria. Using Amos 7.0 to graphically verify the structure of the overall model, these following results were obtained. First, satisfaction with Interior facilities was positively enhanced by food shapes, food colors, tableware sizes and tableware colors. The more people liked these factors, the higher their satisfaction was. Second, satisfaction with Interior decoration was judged by such factors as food sizes, food colors and tableware colors. Third, satisfaction with Interior lightings was affirmatively affected by the colors of food and tableware. Fourth, Interior facilities, decoration and lightings all have positive influence on satisfaction with food. Higher satisfaction on these factors guarantee higher satisfaction with food. Among the standardized coefficient, Interior decoration(0.460), Interior lighting(0.310), Interior facilities(0.183), Interior decoration appears to be the most important factor for satisfaction with food.