01.
Unknown Cause
02.
Occurrence of Unknown Phenomenon
03.
Poor Value Perception
04.
Poor Safety Awareness
05.
Usage
06.
Maintenance/Repair
07.
Malicious Act
08.
Rule Violation
09.
Failure
10.
Fracture/Damage
11.
Bodily Harm
12.
Death
Hibiya Line Derailment Accident
Field
Mechanical Engineering
Author
HARITA, Yoshiaki (FlowNet Company)
NAKAO, Masayuki (Institute of Engineering Innovation, School of Engineering, The University of Tokyo)
