Time filter

Source Type

Hayama K.,Safety Analysis Laboratory | Miyachi Y.,Safety Analysis Laboratory | Nakamura R.,Safety Analysis Laboratory | Shibata T.,Human Science Division | Kimura H.,Track Geometry and Maintenance Laboratory
Quarterly Report of RTRI (Railway Technical Research Institute) (Japan) | Year: 2011

In order to identify effective measures while confronted with limited time and budgets, priorities must be set according to the purpose and effect of a measure. The authors developed a "Human Error Risk management method". This is a method for evaluation which considers "the level of influence of the error-inducing factor" on a risk value evaluated by the combination of "possibility of being of an error" and "worst accident probable to occur due to the error". Consequently, a method for management of human error prevention is presented, which can be adopted by a rail track maintenance office. This paper introduces an example of its application to track maintenance.


Miyachi Y.,Safety Analysis Laboratory | Shibata T.,Safety Analysis Laboratory
Quarterly Report of RTRI (Railway Technical Research Institute) (Japan) | Year: 2010

In order to find an effective measure in limited time and budget, it is necessary to judge the priority of the purposes and effects of measures. One important factor s is the degree of risk. We improved FMEA for the risk assessment of human error phenomena, and developed it to a new risk assessment technique. In order to use this technique, sufficient background factors of accidents and incidents need to be analyzed. Moreover, for preventing human errors, not only the error phenomena but also the causative factors should be grasped. We combined the results of assessing the risk of error phenomena with causes of errors, to create a method of managing and preventing human errors which could be adopted in a railroad office.


Muto M.,Transport Planning Laboratory | Shibata T.,Safety Analysis Laboratory
Quarterly Report of RTRI (Railway Technical Research Institute) (Japan) | Year: 2010

This study focused on a method to evaluate the economic burden on passengers affected by rail transport disorder. The authors developed a choice model for passenger behavior in regard to the two major options of either taking an alternative route or waiting for train services to be resumed. The value of time during the period of disorder was calculated using a model parameter ratio involving the travel time and the applicable fare. We accordingly proposed a new evaluation index to indicate the economic loss as calculated by the product of the value of time and the total time lost by all passengers.


Miyachi Y.,Safety Analysis Laboratory | Murakoshi A.,Ergonomics Laboratory | Akatsuka H.,Safety Psychology Laboratory | Suzuki A.,Ergonomics Laboratory
Quarterly Report of RTRI (Railway Technical Research Institute) (Japan) | Year: 2010

There are many factors which specify the place of the work and kind of job. Among these factors, these factors are closely related with safety. "Safety Climate" is consciousness and attitude for these factors. We analyzed the contents of the items used by the past investigations, and conducted an investigation by which the importance of these contents were evaluated. We developed a technique to evaluate the safety climate of the place of work based on these analysis and results of the investigation. Furthermore, we reviewed many past researches and exam-ined the subjects for the safety climate research which should be studied in the future.


Hatakeyama N.,Safety Analysis Laboratory | Okada Y.,Safety Analysis Laboratory | Hayama K.,Safety Analysis Laboratory | Kaburagi T.,Safety Analysis Laboratory | Miyachi Y.,Safety Analysis Laboratory
Quarterly Report of RTRI (Railway Technical Research Institute) | Year: 2016

It is necessary for train dispatchers to share risk-related information with their team members or superiors in order to deal with abnormal train traffic control situations. A training method was therefore developed to give train dispatchers communication skills. The training included risk scenarios, points to remember in terms of communication skills and a training program. A list of 45 key communication points to remember was also developed, which was designed to promote understanding about communication skills through regular use. This training method can easily be introduced into actual train traffic control fields. Trial experiments were conducted with actual train dispatchers which confirmed the effectiveness of the method. © 2016, Ken-yusha Inc. All rights reserved.


Miyachi Y.,Safety Analysis Laboratory | Kaburagi T.,Safety Analysis Laboratory | Okada Y.,Safety Analysis Laboratory
Quarterly Report of RTRI (Railway Technical Research Institute) | Year: 2016

Preventing accidents and incidents depends on gaining a maximum amount of information about the situations in which these events occurred and about what actions were taken by the people involved in these events. Therefore, we developed a hearing investigation technique. And as a result of having tried this technique, we confirmed that we could collect more the data about the background factors than before. Moreover, we developed an educational program that consists of a five-step of exercise and explanation. And we confirmed that the participant's investigative attitude becomes proper. © 2016, Ken-yusha Inc. All rights reserved.


Hatakeyama N.,Safety Analysis Laboratory | Miyachi Y.,Safety Analysis Laboratory | Kurihara Y.,Meteorological Disaster Prevention Laboratory
Quarterly Report of RTRI (Railway Technical Research Institute) | Year: 2015

In cold snowy regions, the number of level crossing accidents in winter is higher than in other seasons, therefore weather conditions, such as snow showers, are considered to have a large influence on accident occurrence. Previous studies have assessed the safety of level crossings solely from equipment data with no consideration of weather conditions. The purpose of this study, therefore, is to develop a method for assessing level crossing safety which takes into account weather condition factors. The method was applied in a case study and its assessment precision was improved.


Miyachi Y.,Safety Analysis Laboratory | Okada Y.,Safety Analysis Laboratory
Quarterly Report of RTRI (Railway Technical Research Institute) | Year: 2015

We executed the social investigation in order to grasp risk cognition of users with regard to railway accidents and transportation disturbances. Based on the result of investigation, we constructed a "Risk cognition model of railway users" which consists of two factors. The first factor shows proximity of risk cognition, and another factor shows level of fear of risk cognition. Based on this model, we have developed a weighting method which reflects risk cognition of railway users.

Loading Safety Analysis Laboratory collaborators
Loading Safety Analysis Laboratory collaborators