• Title, Summary, Keyword: school zone

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A Study on the Disaster Prevention Design- Based Safety Signs in School Zone

  • Noh, Hwang-Woo;Oh, Chi-Gyu
    • International Journal of Contents
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    • v.13 no.2
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    • pp.50-56
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    • 2017
  • The number of accidents in school zone is decreasing than before with the introduction of strengthening traffic safety policy since January 2011, but the danger still exists. The School zone sign is widely known to have much effect in protecting children from risks of traffic accidents, but design improvement is being demanded to improve a sense of safety and legibility of safety signs in School zone due to the lack of understanding on the safety signs in crosswalk and School zone. This study analyzed differences in shape and color of existing safety signs through a case analysis of traffic developed countries as America, England, Japan, and Germany and suggested improvement plans for drivers to clearly perceive the school zone. For improvement methods, this study suggested the importance of delivering definite and unified warning message for school zone to drivers by using indication sign and caution sign together, and to use yellow, a safety color, and to unify the safety sign into triangle shape that symbolizes warning and caution to conform the international standards. Actual design production and experiment through improvement plans are needed in the future, and it is expected to secure safety of children and to provide international standardization of safety signs in school zone.

The Research of Existing Traffic Safety Facilities Condition for Enhancing in School Zone Safety (어린이 보호구역의 안전성 제고를 위한 교통 안전시설 실태연구)

  • Park, Byong-Gyu
    • Journal of the Korean Association for Spatial Structures
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    • v.13 no.2
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    • pp.101-109
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    • 2013
  • Children are out future society members but they are not well cared to be safe from various accidents. This is due to facilities were installed upon the children's for adults which can not provide safe traffic environment for children's schooling who are not fare enough experience and matured. "The Rule of declaim for school zone and it's Management"was established in the year 1995 based on the article 11 by the "Road Traffic Low". And 15,136 school zone declared by the above rule. In this study, four elementary schools located in Nowon-gu are selected and analyzed about state of elementary school, scope of school zone, installation of street furniture, and safety signs. The analysis showed that scope of school zone is currently set in 150-meter though the regulation is within 300-meter radius. Therefore, expansion of the scope is required. It is necessary to take control of vehicle during commuting times and holograms which can be noticed in school zone have to be installed as well. Through these improvements, safety zone will be offered to children effectually.

A Study on Safe School Zone System using LabVIEW

  • Kim, Kyung-Hwa;Shim, Joon-Hwan
    • Journal of Engineering Education Research
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    • v.13 no.5
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    • pp.20-24
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    • 2010
  • The total number of deaths by traffic accidents is decreasing every year in our country. However, in 2009, children died in traffic accidents at a rate of 2.3 deaths per 100,000 children, which was higher than the average of OECD countries (1.9 deaths per 100,000 children). In particular, traffic accidents are showing rapid increase in school zone during the past 2 years because of problems in the designation and management of school zone. Traffic safety facilities such as road sign, reflector mirror, speed bump have the ultimate limit of vehicle accidents prevention. Thus, in school zone, children safety is still not guaranteed due to illegal parking and the absence of driver's awareness of safety. Therefore, In order to protect children from traffic accidents within school zones, we have realized a safe school zone system, which enables the drivers to better know the intended school zones and creates pedestrian environment through unmanned monitoring camera, using LabVIEW.

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Accidents involving Children in School Zones Study to identify the key influencing factors (어린이보호구역내 어린이 교통사고 발생에 미치는 영향요인 분석)

  • Park, Sinae;Lim, Junbeom;Kim, Hyungkyu;Lee, Soobeom
    • International Journal of Highway Engineering
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    • v.19 no.2
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    • pp.167-174
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    • 2017
  • PURPOSES: This study aims to analyze the impact of the implementation of a school zone traffic safety improvement project on the number of accidents involving children in these zones. METHODS : To analyze the correlation between school zone traffic safety features of roads in the zone and the number of accidents involving children, we developed an occurrence probability model of traffic accidents involving children by using a binary logistic regression model with SPSS 23.0 software. Two separate models were developed for two zones: interior block and arterial road. RESULTS :The model depicted that in the case of the interior block, shorter sidewalk width, speed bump, and an elevated crosswalk were key factors affecting the occurrence of accidents involving children. In the case of arterial roads exceeding a width of 12 m, the speed limit, roadside barriers, and red paving of road surfaces were found to be the key factors. CONCLUSIONS:The results of this study can serve as the elementary research data to help improve the effectiveness of school zone traffic safety improvement projects and school zone road repair projects in future.

A Study on walking circumstance of school zone way -In Gumi city elementary school- (어린이 보호구역내 통학로의 보행환경에 관한 연구 -구미시 초등학교를 중심으로-)

  • An, Hui-uk;Lee, Jae Rim
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.8 no.2
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    • pp.12-21
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    • 2009
  • The purpose of this study is to suggest a scheme to provide children safer and more comfortable walking circumstances by survey current walking circumstances of school zone ways. First, to avoid pedestrian roads being interrupted and to expand waiting space near school zone ways, several measures are needed including fixing roads, using schools' unemployed spaces and building additional gateway. Second, pedestrian crossings in front of school gate should be located at least 23.16m away from the left side of the gate. Third, on narrow path which cross main streets, the interval of pedestrian signal should be extended as against of the moment. And traffic calming facilities should be built on accurate position. Fourth, to secure pedestrians' safety and field of view, trees lining streets and any obstacles located within 10m from bus stop sign should be removed. Finally, education system about school zone ways should be improved to help children get used to more complicated roads' conditions.

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The Development Option for Korea Air Defense Identification Zone(KADIZ) (한국방공식별구역(KADIZ) 발전방안)

  • Kim, Dongsoo;Hong, Sungpyo;Chong, Mangseok
    • Journal of Aerospace System Engineering
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    • v.10 no.1
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    • pp.127-132
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    • 2016
  • Recently, China & Japan have expanded their responding ADIZ(Air Defence Identification Zone) to implement each Government's maritime policy and to project their Air Power in preparation for maritime provocation & contingency, especially over the piled area where East Asia countries have claimed to have maritime jurisdiction one another. So this is to guide the Development Option for Korea Air Defence Identification Zone to cope with the maritime intentions of the neighboring countries, considering the international law for ADIZ, the maritime policy and the maritime sovereign & jurisdiction area of the Republic of Korea, etc.

A Development of the Integrated Evaluation Criteria for Safety of School Zones (스쿨존 안전성 평가지수 개발)

  • Lee, Soo-Il;Kim, Seung-Hyoun;Kim, Jang-Wook;Hu, Ec
    • Journal of the Korean Society of Safety
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    • v.27 no.1
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    • pp.117-122
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    • 2012
  • In recent years, there have been a number of concerns and measures surrounding 'Traffic Safety' for children. But, actually, safety measurements of 'School Zone' lack. This research thesis was designed to quantify risk degrees of 'School Zone', in a simple way, with the development of evaluation indicators to evaluate risk degrees of 'School Zone'. This is deems to be used for a guideline necessary for devising improvements or safety measures against 'School Zone' in the future. And, this is expected to be useful for managing and controlling safety each local facility about elementary schools.

The iZone System for Safety Walking of Children (어린이의 안전한 보행을 위한 iZone 시스템)

  • Min, Seonghee;Oh, Yoosoo
    • Journal of Korea Multimedia Society
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    • v.22 no.1
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    • pp.62-69
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    • 2019
  • In this paper, we propose iZone system for safe walking of children. The proposed system recognizes the state that a child is down a roadway as a dangerous situation. And then it informs the surrounding adults and guardians of the child in the event of a dangerous situation. The iZone system consists of the iZone device that attaches to a child's bag or clothing, the iZone app for children, the iZone server, and external beacons. The proposed system uses the ultrasonic sensor of the iZone device and the GPS coordinates and external beacons information by the children's smartphone to determine the dangerous situation. The proposed system uses external beacons to calibrate the GPS coordinates. Moreover, it determines whether the child is down the roadway in sidewalk by measuring the height difference between the roadway and the sidewalk using ultrasonic sensor.

Behavior of Shear Zone by Improved Direct Shear Test (개선된 직접전단시험을 이용한 전단영역의 거동)

  • Byeon, Yong-Hoon;Truong, Q. Hung;Tran, M. Khoa;Lee, Jong-Sub
    • Proceedings of the Korean Geotechical Society Conference
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    • pp.607-614
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    • 2010
  • Shear behavior of granular soils largely affects the safety and stability of underground and earth structures. This study presents the characteristics of shear zone in a direct shear test using shear wave and electrical resistivity measurements. An innovative direct shear box made of transparent acrylic material has been developed to prevent direct electric current. Bender elements and electrical resistivity probe are embedded in the wall of direct shear box to estimate the shear wave velocities and the electrical resistivity at the shear and non-shear zones. Experimental results show that the void ratio and shear wave velocity at shear zone increase during shearing while the values remain constant at non-shear zone. The results demonstrate correlation among the contact force, small strain shear modulus, and void ratio at shear zone. This study suggests that the application of the modified direct shear box including shear wave and electrical resistivity measurements may become an effective tool for analyzing soil behavior at shear zone.

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Analyzing consolidation data to predict smear zone characteristics induced by vertical drain installation for soft soil improvement

  • Parsa-Pajouh, Ali;Fatahi, Behzad;Vincent, Philippe;Khabbaz, Hadi
    • Geomechanics and Engineering
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    • v.7 no.1
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    • pp.105-131
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    • 2014
  • In this paper, the effects of variability of smear zone characteristics induced by installation of prefabricated vertical drains on the preloading design are investigated employing analytical and numerical approaches. Conventional radial consolidation theory has been adopted to conduct analytical parametric studies considering variations of smear zone permeability and extent. FLAC 2D finite difference software has been employed to conduct the numerical simulations. The finite difference analyses have been verified using three case studies including two embankments and a large-scale laboratory consolidometer with a central geosynthetic vertical drain. A comprehensive numerical parametric study is conducted to investigate the influence of smear zone permeability and extent on the model predictions. Furthermore, the construction of the trial embankment is recommended as a reliable solution to estimate accurate smear zone properties and minimise the post construction settlement. A back-calculation procedure is employed to determine the minimum required waiting time after construction of the trial embankment to predict the smear zone characteristics precisely. Results of this study indicate that the accurate smear zone permeability and extent can be back-calculated when 30% degree of consolidation is obtained after construction of the trial embankment.