• The Journal of the Korea Contents Association
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• v.21 no.12
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• pp.302-309
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• 2021

The section speed enforcement system measures the starting instantaneous speed, the The section speed enforcement system measures the starting instantaneous speed, the ending instantaneous speed, and the section average speed, and imposes fines only for the portion that has been speeding the most. However, according to the Road Traffic Act, most of the systems are installed on highways, so existing research has been conducted on highway sections. In this study, it is expected that the installation of section speed enforcement systems on general national roads will be expanded according to the revision of related laws. ITS collection and operation data targeting the section speed enforcement system installed on National Road 3 Seongnam Icheon-ro was used to analyze traffic speed, standard deviation of traffic speed, and reduction in traffic accidents by dividing it into before installation, trial operation period, and after crackdown. As a result of the analysis, the traffic speed, standard deviation, and traffic accidents decreased by 13%, 25%, and 70%, respectively, after installation, confirming that the installation of the section speed enforcement system greatly contributed to the reduction of accidents.

• Journal of Digital Convergence
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• v.12 no.6
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• pp.539-547
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• 2014

This study aimed to investigate the mediating effect of hope between stress and suicidal ideation of adolescents. For the study, 399 adolescents were surveyed at 10 cities of Korea from May to August in 2010. Main results of the study were in the followings. First, it was found out that stress of adolescents was positively correlated with suicidal ideation, hope was negatively correlated with suicidal ideation, and stress influenced more suicidal ideation than hope. Second, suicidal ideation of adolescents tended to be low, stress was in the middle level, and agency and pathways thinking of hope was higher than middle level. Third, it was proved that agency and pathways thinking of hope was mediated between stress and suicidal ideation of adolescents. Lastly, for the female adolescents living in the metropolitan and large cities, only agency thinking of hope was mediated but pathways thinking was not mediated. Policy implications for preventing and decreasing adolescent's suicide were suggested.

• Journal of Korean Society of Transportation
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• v.25 no.5
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• pp.135-148
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• 2007

Understanding the relation between characteristics of an accident and its duration is crucial for the efficient response of accidents and the reduction of total delay caused by accidents. Thus the objective of this study is to model accident duration using an AFT metric model. Although the log-logistic and log-normal AFT models were selected based on the previous studies and statistical theory, the log-logistic model was better fitted. Since the AFT model is commonly used for the purpose of prediction, the estimated model can be also used for the prediction of duration on freeways as soon as the base accident information is reported. Therefore, the predicted information will be directly useful to make some decisions regarding the resources needed to clear accident and dispatch crews as well as will lead to less traffic congestion and much saving the injured.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.7 no.2
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• pp.92-99
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• 2008

The rapid economic growth in Korea raised the increase of transportation demands about the passengers and the goods, and caused the concentration on cities. By the rise of a nation's income level, a automobile is necessary in our modern life. However, the traffic delays and traffic accidents that are raised by automobiles decrease the evaluation about a nation's economy and then the government practices the traffic safety improvement project. In this study, by performing the improvement project, we expect to achieve the following objectives. First, this study analyses the degree of effectiveness whether or not success in the improvement. Second, to supply the data on the effectiveness of the improvement and to inform the necessity of improvement. Third, to supply the information on the improvement project to the parties concerned. In this paper, through the study about identification of high accident locations, the effectiveness for the number of accidents and accident rates before-after the improvement is analyzed. Also, the B/C analysis about this locations is performed. This study shows that the number of accident and accident rates are decreased after the improvement, and there is economic validity about improvement of high accident locations.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.7
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• pp.4634-4643
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• 2014

The objective of this study was to analyze the effects of LED safety block using the government database. To evaluate these effects, the night accident data was obtained from 2007 to 2011 from the database. At the LED-installed area, compared to the uninstalled area, the number of night traffic accidents, injured and mortality had decreased by 26.2%, 21.2% and 38.3%, respectively. The LED-installed intersections are safer than the LED-uninstalled roads from a traffic accidents perspective. In conclusion, a LED safety block is quite effective in decreasing the number of traffic accidents. Although this study was conducted using the data from Changwon city, where LED safety blocks have been installed so far, these results can provide valuable data to other cities considering the implementation of these LED safety blocks.

• Science of Emotion and Sensibility
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• v.4 no.2
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• pp.33-38
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• 2001

This analysis has been projected as a preliminary analysis to develop the therapy program for people who is suffering from stress disorder after car accident such as sense of fear or anxiety using virtual reality. The analysis verified the effect of driving scenario which is core technology of stress disorder program and of anxiety reduction training such as relaxation training through clients. The relaxation training has been tested to 8 people; 7 normal and 1 sufferer from car accident presenting them 3 different types of driving scenarios. As a result, relaxation training was effective but, it was not statistically good enough although it showed incensement of uneasiness by each different driving scenario. In spite of normal clients, it is interesting that anxiety lever after relaxation training using VR is lowered, but this result need to verify to client suffering real car accident.

• 한국도로학회지:도로
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• v.2 no.3
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• pp.102-102
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• 2000

• 한국도로학회지:도로
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• v.9 no.3
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• pp.23-32
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• 2007

• Journal of Korean Society of Transportation
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• v.26 no.1
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• pp.89-100
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• 2008

The purpose of this paper is to analyze the differences between the severity of punishments for traffic laws related offenders and the choice of policy measures with a view to reducing traffic accidents. To this end, government data on the drivers given a sentence of license suspension or revocation were collected and analyzed in terms of sex, age, type of driver's license, driving career, number of traffic laws violations, and number of traffic accidents generated. The statistics of analysis of covariance and tests of significance were used and conducted to compare the effectiveness of punishment for the penalty and the incentive groups. The results showed that the incentive policy measure on the drivers who violate traffic regulations repeatedly is more effective to reduce the number of traffic offenders and traffic accidents.

• Journal of Industrial Convergence
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• v.20 no.6
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• pp.125-133
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• 2022

The purpose of this study was to identify the mediating effects of positive thinking in the relationship between emotional expressivity and public speaking anxiety. Participants were recruited from one university freshmen located in Gwangju city. Data were collected from 146 university freshmen. The self-reported questionnaire was used to assess the level of positive thinking, emotional expressivity, public speaking anxiety. The SPSS WIN 23.0 version program was used with Baron and Kenny's 3-Step mediating effect and Sobel test. It was examined whether there was a mediating effect of positive thinking on emotional expression and presentation anxiety. In the second stage, emotional expressivity showed a significant effect on presentation anxiety. In stage 3, emotional expressivity was not statistically significant in presentation anxiety, and positive thinking was statistically significant in presentation anxiety. Positive thinking had a total mediating effect(z=-4.57, p<.001) in the relationship between emotional expressivity and public speaking anxiety. To reduce the public speaking anxiety among university freshmen, it is necessary to develop interventions that enhance positive thinking in addition to providing emotional expressivity.