derailment due to multiple concurrent causes
A railway technical term for a derailment caused by the combination of several factors, none of which alone would have caused the accident. Used in accident reports and engineering contexts.
The accident investigation committee determined this derailment to be a concurrence-of-causes derailment.
A concurrence-of-causes derailment occurs when multiple factors coincide.
Compound of 競合 (concurrence) and 脱線 (derailment). The term is a technical coinage used in railway safety engineering.