• International Journal of Highway Engineering
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• v.11 no.3
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• pp.85-95
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• 2009

According to the accident statistics published by the National Police Agency in 2007, the number of commercial vehicle accidents explains 3.5 percent of the total number of traffic accidents of the year. Compared to other types of vehicles commercial vehicles may provide more serious damages to both driver himself and passengers. Thus, they generate more serious social and economic problems. There have been various forms of systems such as a digital speedometer or a black box to meet the social requirement for reducing traffic accidents and improving safe driving. However, since the current systems are based on the data often accidents happened, there are lots of limitations to control drivers in real-time. Also, the current speedometers provide drivers with only speeds of vehicles and RPM information regardless of actual dangerous drive behaviors. Therefor, they lack of the effectiveness in terms of safety. In this research, real-time information systems for improving driver safety based on automatic risky driving behaviors, and thresholds to determine risky driving patterns were studied.

• Journal of Digital Contents Society
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• v.19 no.1
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• pp.113-122
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• 2018

In level 3 automated vehicles, drivers are expected to encounter transition of control when the system reaches its limit. Drivers need to refocus their attention on the road ahead and gain situational awareness. Appropriate information should be conveyed during this period in order to prevent human errors. In this paper, we defined the takeover process as 'in-the-middle-of-the-loop' and conducted Task Analysis and Work Domain Analysis to find out information requirements. As a result, we specified required information types and interface considerations. Moreover, we conducted an experimental study to find how the information types affect drivers on situation awareness, cognitive load and reaction time. Consequently, we found different information on system transparency should be conveyed depending on the urgency of takeover situation and driver guidance could help drivers with better situation awareness after the takeover.

• Journal of Korean Society of Transportation
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• v.33 no.6
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• pp.509-519
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• 2015

In spite of the efforts to reduce traffic accidents of commercial vehicles, the number of driving under the influence (DUI) of commercial drivers has been increasing. This study examines the effect of stress coping style of commercial drivers on driving behaviors. Specifically, this research aims to find the role of life stress as a mediator in the relationships between the stress coping style and problematic drinking behaviors. 1308 licensed commercial vehicle drivers participated in this research. Results showed that life stress mediated the relationships between problem focused strategies, wishful thinking strategies, passive avoidance strategies and problematic drinking behaviors. These findings indicate that educating drivers to change their stress coping styles would be helpful to inhibit them from being involved in drunken driving.

• International Journal of Highway Engineering
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• v.11 no.4
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• pp.33-40
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• 2009

This study deals with the traffic accidents of elderly drivers. The objectives are to comparatively analyze the characteristics of accident between the elderly and other drivers, and to develop the models of traffic accidents. In pursuing the above, this paper gives particular attentions to testing the differences between the above two groups, and developing the models(Poisson and negative binomial regression) using the data of Cheongju 4-legged signalized intersections. The main results analyzed are as follows. First, the differences between the elderly and other drivers' accidents were clearly defined by the time of day, accident type, etc. Second, 3 accident models which were all statistically significant were developed. Finally, the differences between elderly and other drivers' models were comparatively analyzed using the common and specific variables.

• 한국노년학
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• v.32 no.4
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• pp.1087-1099
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• 2012

The purpose of this paper is to examine how visuospatial ability affects the situation awareness for older drivers while driving. For this study, the Rey-Osterrith Complex Figure (ROCF) was used to measure the visuospatial ability of older drivers. The ROCF is used to measure visuospatial construct and memory abilities, and Real-Time Probes were used to measure the situation awareness with UC-win/Road simulation. Sixty drivers participated in this research (N = 30 older drivers, median = 70 years old and N = 30 younger drivers, median = 27 years old). Based on the results of this analysis, a repeated measure ANOVA was used to analyze the effect on each level of situation awareness related to visuospatial ability in driving. The results indicate that the visuospatial ability of older drivers serves as a crucial factor in determining the potential for older drivers to safely continue to drive. The results also imply the necessity of ROCF development to support and improve the visuospatial ability of older drivers.

• The Journal of the Korea Contents Association
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• v.22 no.4
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• pp.70-82
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• 2022

At the current stage of a semi-autonomous vehicle, there are situations in which the vehicle has to request take-over control to the driver quickly. However, current self-driving cars use only simple messages and warning sounds to notify drivers when handing over control, so they do not adequately convey considerations of individual characteristics or explanations of various emergent situations. This study investigated how visual and auditory information and the efficacy of drivers in self-driving cars can improve efficient take-over requests between the car and the driver. We found that there were significant differences in driver's cognitive load, reliability, safety, usability, and usefulness according to the combination of three visual and auditory information provided in the experiment of the take-over request situation. The results of this study are expected to help design self-driving vehicles that can communicate more safely and efficiently with drivers in urgent control transition situations.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2003.05a
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• pp.545-550
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• 2003

교통사고의 요인은 크게 운전자 요인, 도로환경 요인, 차량 요인으로 구분 할 수 있다. 운전자의 안전의식미비, 심리상태, 피로 등 운전자 요인과 차량의 고장, 정비상태 불량 등 차량요인은 운수업체의 경영과 직ㆍ간접적인 관계가 있으므로 사고예방을 위한 경영자의 안전의식이 교통사고에 영향을 끼친다는 것은 분명한 사실이다.(중략)

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.22 no.2
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• pp.52-62
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• 2004

일반적으로 피로한 운전자들은 집중하지 못하거나 조작상의 실수가 발생하는 경우가 증가하고, 정보처리 속도와 기억용량이 줄어들며, 작업 수행도의 변화가 크게 일어난다고 한다[1]. 기존의 사고 통계 자료나 조사 보고서에서도 운전자 피로가 자동차 사고의 주요 원인 중의 하나로 나타나고 있다[2, 3].

• Satellite Communications and Space Industry
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• v.8 no.1 s.18
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• pp.152-158
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• 2000

교통사고를 감소시키는 방안으로 과속을 방지하고 주행차선 전방에서 발생하는 교통사고나 노면상황정보를 운전자에게 미리 전달할 필요가 있다. 본 연구에서는 과속시 과속을 운전자에게 주지시키거나 또는 차량 스스로 능동적으로 과속을 제한함으로써 규정속도를 준수토록 한다. 또한 주행주의 상황을 운전자에게 음성과 화면으로서 전달하여 사고예방에 대처할 수 있는 충분한 시간을 제공하기 위함이다.

• Electronics and Telecommunications Trends
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• v.29 no.5
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• pp.1-8
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• 2014

최근 차량 내부와 외부 교통환경으로부터 운전자에게 다양한 다량의 정보가 제공되고 있다. 이와 같은 정보가 범람하는 교통환경에서 운전자가 안전하게 운전하기 위해서는 운전자에게 '필요한 정보'가 '적절한 시기'에, '쉽게 지각할 수 있는 형태'로 제공되어 '올바른 판단'을 할 수 있도록 해야 한다. 이를 인간-자동차 인터랙션(HVI: Human-Vehicle Interaction) 기술이라 할 수 있으며, 진정한 의미 의미에서의 HVI 기술이 이루어지기 위해서는 운전자가 운전을 함에 있어 사용하고 있는 자원에 대한 관리, 즉 운전부하 관리가 기반이 되어야 한다. 따라서 본고에서 운전자의 운전부하 관리에 대한 정의와 기술개발 동향을 살펴보고자 한다.