Earticle

본 연구는 시내버스 운전자의 실제 운행기록 정보를 토대로 사고발생 가능성을 내포한 운전자를 판단할 수 있는 모형개발을 목적으로 하였다. 본 연구를 위하여 사고발생 운전자 및 사고 미발생 운전자의 실제 운행기록 정보에서 교통사고와 관련한 유의변수를 도출하는 한편, 판별분석(Discriminant Analysis) 및 로지스틱회귀분석(Logistic Regression Analysis)을 적용하여 개발된 분류모형에 대한 모형간 정확도를 비교하였다. 또한, 개발된 모형을 다른 운전자들의 운행기록자료에 적용하여 모형의 정확도를 검증하였다. 사고발생 가능성을 내포한 운전자 분류모형을 개발한 결과 감속도(Xdeceleration) 및 우측방향 가속도(Yright) 가 동시에 작용할 때 이 변수가 사고발생 운전자 분류의 최적 요인변수로 도출되었으며, 판별분석에 의한 예측모형은 최대 62.8%, 로지스틱회귀분석에 의한 예측모형은 최대 76.7%의 비율로 사고발생 운전자 분류가 가능한 것으로 나타났다. 또한, 모형 예측력에 대한 검증결과 84.1%의 적중률을 보이는 것으로 나타났다.

This study aims to develop a model by which city bus drivers who are likely to cause an accident can be figured out based on the information about their actual driving records. For this purpose, from the information about the actual driving records of the drivers who have caused an accident and those who have not caused any, significance variables related to traffic accidents are drawn, and the accuracy between models is compared for the classification models developed, applying a discriminant analysis and logistic regression analysis. In addition, the developed models are applied to the data on other drivers' driving records to verify the accuracy of the models. As a result of developing a model for the classification of drivers who are likely to cause an accident, when deceleration (Xdeceleration) and acceleration to the right (Yright) are simultaneously in action, this variable was drawn as the optimal factor variable of the classification of drivers who had caused an accident, and the prediction model by discriminant analysis classified drivers who had caused an accident at a rate up to 62.8%, and the prediction model by logistic regression analysis could classify those who had caused an accident at a rate up to 76.7%. In addition, as a result of the verification of model predictive power of the models showed an accuracy rate of 84.1%.

Objectives: The questionnaire of occupational stress index (OSI) has been popular in the workplace, and it has been tailored for bus drivers in Taiwan. Nevertheless, its outcomes for participants are based on self-evaluations, thus validation by their physiological stress biomarker is warranted and this is the main goal of this study. Methods: A cross-sectional study of sixty-three city bus drivers and fifty-four supporting staffs for comparison was conducted. Questionnaire surveys, 24-hour urine cortisol testing, and blood draws for dehydroepiandrosterone-sulfate (DHEA-S) testing were performed. The measured concentrations of these biological measures were logarithmically transformed before the statistical analysis where various scores of stressor factors, moderators, and stress effects of each OSI domain were analyzed by applying multiple linear regression models. Results: For drivers, the elevated 24-hour urine cortisol level was associated with a worker's relationship with their supervisor and any life change events in the most recent 3 months. The DHEA-S level was higher in drivers of younger age as well as drivers with more concerns relating to their salary and bonuses. Non-drivers showed no association between any stressor or satisfaction and urine cortisol and blood DHEA-S levels. Conclusion: Measurements of biomarkers may offer additional stress evaluations with OSI questionnaires for bus drivers. Increased DHEA-S and cortisol levels may result from stressors like income security. Prevention efforts towards occupational stress and life events and health promotional efforts for aged driver were important anti-stress remedies.

Objectives: Our previously published study showed that a workplace nutrition intervention program with personalized goal setting and smartphone-based nutrition counseling improved dietary habits and physical activity in city bus drivers who were overweight/obese. This study explored the facilitators and barriers that participants faced in achieving their dietary and physical activity goals six months after the intervention. Methods: The study included bus drivers and dietitians who participated in the intervention program. Three focus group interviews were conducted with 10 bus drivers (divided by two groups based on their achievement of set goals) and five dietitians who had provided nutrition counseling. Results: Willpower was the most important intrapersonal facilitator for drivers to achieve their goals. Other factors that promoted behavioral changes were nutrition counseling by dietitians, trackable physical activity using smartwatches, and setting of practical and achievable goals. Meanwhile, the most important barriers identified were occupational factors such as long driving hours, short breaks, and shift work. Other barriers were environmental factors such as availability of snackable food, accessibility to convenience stores, and cold weather. Family and colleagues were perceived as both facilitators and barriers. In addition, dietitians identified a lack of knowledge about healthy diet as one of the barriers. Conclusions: Our results suggested that the workplace environment should be improved and that nutrition intervention programs at the workplace could encourage bus drivers to practice healthy eating habits. The facilitators and barriers identified in this study should be considered when planning a nutrition intervention program for bus drivers.

The purpose of this study was to enhance city tour bus passengers’ perceived safety service quality and satisfaction. City tour bus recently have gained popularity as the way to visit city’s core attractions in effective manners. The traditional roles in service delivery system between drivers and passengers was to maintain strict and formal attitude and to minimize interaction as far as safety concerned. Literature reviews revealed that rapport and friendship were proved to effectively change human relationship and yielded organizational and marketing performance. Survey was administered to Chinese city tour passengers visiting BUKCHON MAEUL, renowned for Korean traditional housing. Factor and reliability test was performed on 174 completed survey and regression analysis was followed to identify the relations between variables. Bus drivers’ rapport and friendship with passengers were verified as the precedent variables that affected passengers’ perceived safety service quality. Safety service quality also affected satisfaction. Future researchers and industry practitioners can gain insight into the effectiveness of rapport and friendship and the significance and limitation of research were provided.

본 연구의 목적은 운전자의 준수사항 및 유사시 대응방안을 매뉴얼 화하여 운전자의 업무능력 함양하고, 교통약자 이동지원 차량을 이용하는 교통약자의 만족도 향상하는 데 있다. 준비사항 점검 및 탑승자 정보 확인 관점에서 휠체어리프트를 장착 시외/고속버스 프로그램의 성공 여부는 휠체어 이용자와 접촉하고 있는 운수종사들의 태도와 행동에 달려 있다. 운전자는 인내심과 유연성, 열정, 정서적 안정성, 친절함, 이해 및 공감능력을 가지고 있어야 한다. 먼저 준비사항 점검하면서 안전 수칙을 확인하고, 일상점검 실시 및 업무를 개시한다. 그리고 전동휠체어에 대한 이해를 위해 그 종류와 조작방법을 익힌다. 또한 휠체어 탑승자 정보를 확인하며, 운전자의 준수사항을 재확인한다. 이러한 매뉴얼 기반 교육문화가 시외버스 운전자의 의식과 행동에 어떤 영향을 미치는지 이 연구에서 탐구하고자 하였다. 한편, 안전을 위협하는 상황에서 버스기사와 일반인의 대응 방식의 차이를 규명함으로써, 버스기사에게 특히 어떤 안전교육 매뉴얼이 필요한지 검증하였다.

The purpose of this study is to improve the driver's ability to work by improving the manual instructions for driver compliance and response measures in case of an emergency, and to improve the satisfaction of the traffic weak using wheelchair bound vehicles. In terms of checks for preparations and confirmation of occupancy information, the success of the carrier-lift bus program depends on the attitude and behavior of the transit personnel in contact with the wheelchair user. The driver shall have patience and flexibility, passion, emotional stability, kindness, understanding and empathy. Check the preparations first, check the safety regulations, carry out a daily inspection, and start work. To gain an understanding of powered wheelchairs, learn their types and operation. It checks the wheelchair occupant information and reaffirms the drivers compliance. The study was intended to explore how these sector-based education cultures may influence the consciousness and behaviour of bus drivers in suburban areas. And by identifying the difference between bus drivers and the general public's responses in situations that threaten safety, it was confirmed which safety education manual the bus driver needs.