抄録
Relational Information System for Chemical Accidents Database (RISCAD) has been developed by AIST and JST. Some of the accident data contain progress flowcharts and lessons learned information. The accident progress flowcharts have been created to assist database users to have more clear understanding of what happened in the accident. As for the procedures to make the flowcharts, first, one of the analyzing team members from the RISCAD staff investigated some accident reports and made a draft progress flowchart to discuss with other members together. Then, we tried to figure out, for example, the root causes, which had not been clear yet since the accident occurred. Finally, the progress flowchart can then be updated on the website. You can also see their lessons learned information that can be helpful to prevent future accidents. In this paper, the outline and the functions of RISCAD are introduced. Also, a case study related to mechanical equipments is presented following the progress flowchart.