• 한국콘텐츠학회:학술대회논문집
• /
• 한국콘텐츠학회 2014년도 춘계 종합학술대회 논문집
• /
• pp.167-168
• /
• 2014

• 한국콘텐츠학회논문지
• /
• 제22권2호
• /
• pp.116-124
• /
• 2022

2019년 9월 충남 아산 김민식 군의 사망사고 이후 어린이보호구역에 대한 인식이 높아지고 있으며, 지속해서 교통법 개정이 이루어지고 있다. 하지만 이러한 노력에도 불구하고 어린이 교통사고의 수는 크게 줄어들지 않고 있다. 이것은 어린이 행동 특성과 교통 환경을 고려한 새로운 정책적 방향의 필요성을 나타낸다. 이에 본 연구는 사례분석을 통해 국내의 어린이보호구역의 현황 및 문제점을 파악하였다. 그리고 교통안전 선진국인 스웨덴의 비전 제로(Vision Zero) 정책과 홈 존(Home Zone)의 개념, 그리고 공학적 위주의 도로설계 사례 및 운영 방식에 대해 분석하였다. 또한 양국의 사례를 방재디자인의 기본원리를 중심으로 비교하고 정리하였다. 본 연구는 국내 어린이보호구역의 문제점 개선을 위한 디자인과 정책의 방향성을 제시하는데 목표를 두고 있다. 이를 통해 본 연구 결과가 국내 어린이보호구역 내 사망사고 감소를 위한 향후 연구 발전 자료로써 활용되기를 기대한다.

• 대한토목학회논문집
• /
• 제38권6호
• /
• pp.895-906
• /
• 2018

우리나라의 어린이보호구역 개선사업은 어린이가 주로 활동하는 유치원, 초등학교 주변에서 많이 발생하고 있어 어린이 교통사고 예방책의 일환으로 추진하고 있다. 하지만 어린이보호구역내 안전시설물에 대한 필수 설치 시설물과 적정 설치 수준에 대한 연구가 부족한 바, 본 연구에서는 자료포락분석을 활용한 안전시설물 설치의 효율성을 상대적으로 평가하여 개선방안을 제시하였다. 화성시 관내 초등학교중 총 28개 어린이보호구역에 대한 시설물 현황과 사고현황 자료를 구축하였다. 기존 연구상에 효과가 입증된 주요 시설물 6개(고원식 교차로, 고원식 횡단보도, 방호울타리, 미끄럼방지시설, 과속방지턱, 단속카메라)만 투입요소로 하여 분석하였다. 분석결과 28개소 중 12개소만 효율성이 있는 것으로 나타났으며, 16개소는 효율성이 떨어지는 것으로 나타났다. 효율집단으로 구분된 어린이보호구역은 방호울타리, 미끄럼방지시설, 단속카메라 설치가 비효율집단으로 구분된 어린이보호구역보다 적게 설치한 것으로 나타났다. 방호울타리는 어린이보호구역 전체연장 중 47% 정도만 설치하여도 충분히 효율성이 있는 것으로 나타났으며, 미끄럼방지시설의 개소 수는 $km^2$당 8.7개 정도면 효율성이 있는 것으로 나타났다. 비교대상의 수가 28개소로 상대적 효율성 평가지표로 활용하는 데는 본 연구가 한계가 있으며, 향후 전국단위로 그룹화 하여 각 그룹별로 효율성 평가할 수 있을 것으로 판단된다.

• International Journal of Human Ecology
• /
• 제12권2호
• /
• pp.39-50
• /
• 2011

This study surveys the state of 'children's snacks' sold within the Green Food Zone and that of High Calorie Foods with Low Nutrition Value (HCFLNV). The main purposes are the analyses of foods in accordance to KFDA Program for HCFLNV and an analysis of differences in HCFLNV that are dependent on relevant factors such as food types, school types, origins, the scale of manufacturing company, area and price. Based on the analyses, educational and political implications have been sought that will form nutritious dietary habits, contribute to the prevention of obesity, and improve health in child consumers. The methodologies of this study are literature studies and surveys. The results of this study can be summarized as following. First, the number of children's snacks is 517 items of total 645 gathered within 150 Green Food Zones. Candies are the most popular item, next are cookies, chocolates, and breads. Second, in the real state survey there are 186 HCFLNV (36.0%) among children's snacks sold within Green Food Zone. Based on the survey results, the marking of HCFLNV on the package of children's snacks and the extension of the ban of HCFLNV sales to all stores within the Green Food Zone are strongly suggested. This provides preliminary data related to children's snacks and food safety. With enforcement of the Special Act on the Safety Management of Children's Dietary Life, the rate of HCFLNV has decreased and the child snack product environment in stores has improved. However, it is necessary to supervise low-priced snacks and promote an awareness of HCFLNV along with the child consumer education of food safety is needed.

• 한국안전학회지
• /
• 제21권3호
• /
• pp.107-113
• /
• 2006

Speeding is one of major causes of frequent and severe traffic accidents in school zones. In this paper, the long-term effectiveness of speed monitoring displays (SMD) on speed variability was investigated through a field study in a school zone environment. The performance difference was discussed with several dependent variables including average speed, 85th percentile speed, and distribution of speed. Study results showed that the speed of vehicles began to reduce where the driver recognized the presence of an SMD, and about 12.4 percent (5.8km/h) of average speed was reduced at the SMD location. This speed reduction was observed throughout the day regardless of time of day. Statistical tests showed that the speed difference was statistically significant. In addition, analysis results of speed distribution showed that the number of speeding vehicle was greatly reduced after the SMD was installed, and 85th percentile speed also decreased from 54.3km1h to 45.0km/h. Therefore, it was concluded that the application of SMD produced a positive impact on the driver's behavior for a long period of times.

• 한국도로학회논문집
• /
• 제14권6호
• /
• pp.93-101
• /
• 2012

PURPOSES : This study is to develop ISM for potential risk factor in School Zone. METHODS : Based on the literature review, the Analytic Hierarchy Process (AHP) has been used most widely. However, it is difficult to apply in practice because the AHP results have the characteristics of the independence between each element and the interlayer can not explain the interrelationship. The Network Analysis Process (ANP) is possible to analyze the relationship between the elements and the network through the feedback. But, the reliability of the analysis fall because of complicated pair of comparison, also it is difficult to solve the super matrix. In this study, the complicated relationship between each element is inquired through the Interpretive Structural Modeling (ISM). RESULTS : The methodology of ISM is developed to remove the children's potential risk factors in school zone. CONCLUSIONS : It is possible to remove the children's potential risk factors from low level to high level step by step and improve safety. Through this, risk factors can be removed from the low-level, and upper-level will automatically improve.

• Journal of Welding and Joining
• /
• 제26권3호
• /
• pp.45-50
• /
• 2008

SM45C steel rods being used generally for power transmission shafts and machine components was selected and welded by Butt-GMAW(Gas Metal Arc Welding) method. An estimation of fatigue life was studied by constructing S-N curve. Fatigue strength of base metal zone showed higher values than one of weld zone in low cycles between $10^4$ and $10^6$cycles. However, significant decrease in fatigue strength of base metal was found around $10^6$cycles, which were almost same as one of heat affected zone. This decrease was attributed that initial residual stress of the steel rods distributed by drawing process was diminished by continually applied load, and resulted in softening of base metal. The fatigue limit of the weld zone was highest in the boundary between deposited metal zone and heat affected zone, and followed by in the order of deposited metal zone, base metal zone, and heat affected zone. Based on these results, it is revealed that the stress for safety design of machine components using SM45C butt-welded steel rods must be selected within the region of the lowest fatigue limit of heat affected zone.

• 한국ITS학회 논문지
• /
• 제16권5호
• /
• pp.121-133
• /
• 2017

1990년대 중반 이후 어린이보호구역 개선사업 등 학교 주변 안전과 보행환경 개선을 위한 정책이 적극적으로 추진되어 왔으나, 어린이 통학 시의 주요 이동경로가 이루어지는 통학로까지는 확대되지 못해 사고예방 효과가 크지 않았다. 또한 자동차 급증으로 첨두시간대의 간선도로 교통이 이면도로로 우회함에 따라 어린이들의 주요 생활공간인 학교 권역까지 침범하는 등 어린이 안전과 환경을 위협하고 있다. 이에 본 연구는 국내 어린이 교통사고 특성을 파악하고 서울시 여의도 중고등학교 및 경기도 운중초등학교를 중심으로 현장조사를 수행하여 문제점을 분석하였다. 또한 보행자 보호구역(어린이보호구역 포함)에 가변형속도제한표지 및 비콘을 설치하여 해당시설이 차량의 통행속도에 미치는 영향을 분석하였다. 분석결과 가변형속도제한표지는 약 8.3km/h의 통행속도 감속효과가 나타났으며 비콘의 경우 미미하나마 오히려 0.8km/h의 통행속도가 증가하는 현상이 도출되었다. 또한 설치전후의 신호위반 차량대수를 조사한 결과 승용차, 버스, 화물차의 신호위반율이 약 3% 감소하였다.

• 대한기계학회논문집A
• /
• 제26권3호
• /
• pp.528-536
• /
• 2002

As one step for the safety performance of LNG storage tank, the change in fracture toughness within the X-grooved weld heat-affected zone (HAZ) of newly developed 9% Ni steel, which was submerged arc (SA)-welded, was investigated. Both crack initiation fracture toughness and crack arrest fracture toughness were evaluated by the crack tip opening displacement (CTOD) tests and compact crack arrest (CCA) tests. As the evaluated region approached the fusion line, each test result shorted different tendency, that is, crack initiation toughness decreased while crack arrest toughness increased. The results were discussed through the observation of the microstructural change.

• 한국안전학회지
• /
• 제32권2호
• /
• pp.52-58
• /
• 2017

One of the most important elements of the management of chemical accident is threat zone estimation of fires, explosions and toxic gas dispersion based on chemical releases. The threat zone estimation is going to be standard of emergency response for the first defender and base line data of off-site risk assesment (hereinafter referred to as "ORA") and risk management plan (hereinafter referred to as "RMP"). Generally, ALOHA form EPA(U.S.) and Kora(from KOREA MINISTRY OF ENVIRONMENT) has been used for the off-site consequence analysis in Korea. However it is hard to predict accurate consequences rapidly in case of emergency. Hydrochloric acid is a multipurpose raw material used in many industrial applications such as chemical, metal and food industries. It is usually treated in concentrations from 10 ~ 35 %, and release accident have occurred frequently. In this study, we have developed a simplified estimating method and equation to calculate threat zone easily in case of emergency due to release accident of hydrochloric acid.