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김태호 ( Tae Ho Kim ),이수일 ( Soo Ii Lee ),최병호 ( Byong Ho Choe ) 한국안전학회(구 한국산업안전학회) 2012 한국안전학회지 Vol.27 No.5
Traffic accident risk of young drivers(less than 25) is reported to have 8 times as high as that of middle aged drivers (between 30 and 49). Despite the rise of traffic accident risk, few have been attempted to take a look into driving characteristics of young drivers, The purpose of this paper is to analyze age-specific risks of young driver by means of database of insurance and vehicle inspection, thereby collecting data such as age, vehicle mileage, injuries and so on, We conducted Data-Mining (CART) and Portfolio analysis according to age groups (every 10 years). The conclusions which can be drawn from this empirical study are as follows: (1) Despite the fact that young drivers have low vehicle mileage, the rate of fatality is relatively high. (2) Being concerned of vehicle mileage, 24,000km of driving experience is thought to be critical in differing in fatality rate. Having annual average mileage fewer than 24,169 km, accident frequency is relatively lower than that exceeding 24,169 km (1,571 cases). Backed upon these, some recommendations about driver`s license system for young driver to improve are given.
윤공현(YOON, Kong Hyun),백상훈(BAEK, Sang Hun),이강무(LEE, Kang Mu),최병호(CHOE, Byong Ho) 대한교통학회 2017 대한교통학회 학술대회지 Vol.76 No.-
2015년에 도로교통사고로 4,621명이 사망했으며 이중 1,795명(39%)이 보행자 사고로 나타났으며, 보행자 사망자중 횡단중 사고가 954명(53%)으로 가장 큰 비중을 차지했다. 또한, 전체 사망자수중 1,814명(40%)이 65세 이상 고령자로 나타났다. 이에 본 연구에서는 보행자 교통안전 취약구간 개선을 위하여 보행자 사고의 가장 큰 비중을 차지하는 횡단중 사고 및 고령 보행자의 안전 향상 방안을 모색하고자한다. 첫째, 횡단중 사고 분석을 위해 무단횡단 실태 분석을 실시하여 무단횡단금지시설 설치 효과를 분석하였다. 무단횡단금지시설 설치전․후 분석결과 무단횡단자수는 설치 이후 80.2%가 감소하였고, 보행자 교통사고 건수는 87.1%가 감소하는 것으로 분석되어, 무단횡단금지시설 설치 효과는 큰 것으로 나타났으며, 무단횡단금지시설의 설치 효과 극대화 방안을 제시하였다. 둘째, 고령 보행자 안전 향상 방안 모색을 위하여 문헌고찰 및 안전시설물 설치 사례 분석을 통하여 보행교통섬 설치 및 보행신호 잔여시간 표시기 설치를 제안하였다.
도심교통소음의 노출시간에 따른 라우드니스 및 어노이언스의 주관적 반응에 대한 연구
허덕재(Hur, Deog-Jae),조경숙(Jo, Kyoung-Sook),최병호(Choe, Byong-Ho) 한국소음진동공학회 2007 한국소음진동공학회 논문집 Vol.17 No.3
A study has been conducted to investigate the subjective responses of loudness and annoyance according to the exposed time of urban traffic noise in controlled laboratory environment. To make a closer inspection into psychological response relevant to noise characteristics while varying the time of exposure to noise, the subjects were presented a set of noises with different exposed time and requested to judge spontaneously on a 100-unipolar scale. To be concrete, the subjects were exposed to noises being varied in time from 15 sec up to max. 1,200 sec for the controlled traffic noise sources. So far achieved from laborious tests, it has an importance being on the logarithmic relations of perceived loudness and exposed time, say, it is more increased the perceived loudness in the sorter exposed time than in the longer exposed time. However, the trend is said to be not effective for the case of annoyance. On the other hand, the subjective impressions on relative annoyance of noise is shown to be correlated with the noise characteristics such as loudness (sones), tonality and time with logarithmic scale, the product correlation moment being calculated as $R^{2}=0.99$. The variances to be explained for annoyance assessments through varying the time of exposure were ranged between 30 % and 50% for the exposed time, $27{\sim}37%$ for tonality, and $34{\sim}20%$ for loudness, respectively With these results, hopefully, it can be helpful for those who want to work out an experimental design for evaluating an environmental noise or to quantify any psychological dimensions found in annoyance assessments.