An Approach for Integrated Analysis of Human Factors in Remote Handling Maintenance

Table 2

Numerical interval-based indicators.

Criterion	Indicator	Interval define
		Accessibility	Visual accessibility	Very poor	Poor	Medium	Good	Very good
Operation accessibility	Very poor		Poor	Medium	Good	Very good
Health safety	Physical injuries	Very serious	Serious	Medium	Small	Tiniest
	Radiation injuries (distance/m)	0~0.2	0.2~0.4	0.4~0.6	0.6~0.8	0.8~1
Comfort	Fatigue at work (RULA value)	7	5~6	3~4	2	1
Correctness	HEP	>0.08	0.06~0.08	0.04~0.06	0.02~0.04	<0.02
Internal factors	Psychological cognition (expert scoring)	0~1	1~2	2~3	3~4	4~5