• The Journal of Korean Association of Computer Education
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• v.9 no.1
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• pp.61-70
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• 2006

In the area of e-learning education, SCORM2004 that is suggested by ADL and is a defacto standard allows to design and apply various interrelations among learning objects which organize learning process through consolidating IMS Simple Sequencing into S&N. In this paper, we intend to realize a web_based adaptive learning management that enable to guide experientially the learning activity through the SCORM 2004 S&N and the Traffic-Signal-Lamp Metaphor. This adaptive system allows professor to design the learning courseware realizing various learning strategies to be able to reuse same learning contents and student to be leaded a adaptive learning through being supplied immediately the state and evaluation of learning.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07a
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• pp.76-78
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• 2005

e-Learning분야에서 표준안으로 인정받고 있는 ADL의 SCORM에서 발표한 SCORM2004 Sequencing&Navigation은 동일한 학습객체를 사용하여 학습객체간의 다양한 상호관계를 설계, 적용할 수 있게 하였다. 그리고, 학습자와 학습객체와의 개별 상호작용을 추적, 평가하여 학습흐름을 안내함으로써 개별 적응적 조언 학습의 가능성을 보여주었다. 본 논문에서는 SCORM1.2기반의 LMS에 SCORM2004 S&N과 적응적 탐색을 지원하는 교통신호메타포를 구현하고 실제적으로 적용하고자 한다. 이로써, 학습설계에 따라 정해진 학습객체 상호간의 S&N규칙이 개별 학습자의 학습상태와 평가에 의해 다른 순서로 전달하거나 생략되어지고, 학습상태를 시각적으로 제공함으로써 적응적 조언 학습 설계에 대한 가능성을 실현할 수 있었다.

• Journal of Korean Society of Transportation
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• v.34 no.4
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• pp.291-303
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• 2016

The number of traffic accidents at intersections has been increased over the past decade, and in 2014, accounted for 44% of the total traffic accidents. In addition, since most of road accident black spots include signalized intersections, the improvement of safety on signalized intersection is top priority for national road safety program in Korea. For the decision of most effective action plan for the safety of signalized intersection, this study conducted meta-analyses to assess the effects of various road safety facilities at signalized intersection on traffic accidents. We selected 19 articles regarding the prediction of traffic accidents at signalized intersection and calculated 34 individual effect sizes on 8 variables included in the articles. The results found that there was a statistically significant negative relationship between the occurrence of traffic accident and the presence of all of road safety facilities except an exclusive left turn bay. It shows that most of the road safety facilities could prevent traffic accidents, and intersection channelization has the most effective on the reduction of traffic accidents followed by left-turn acceleration lane, lightning, crosswalk, exclusive right-turn lane and median barrier.