Unsafe Behavior Analysis and Risk Measurement of Traffic Accidents in Mountainous Highway Tunnel

Table 3

Values of parameters in basic reliability.

Category	Content	,
Simple	Few variables, ergonomic principles considered	0.9995–0.9999	0.999
General	Variables below 10	0.9990–0.9995	0.995
Complex	Variables over 10, inadequate consideration of ergonomic principles	0.990–0.999	0.990