An Investigation of Dynamic Responses and Head Injuries of Standing Subway Passengers during Collisions

Figure 12

The relation of the coefficient friction and HIC₁₅ values of three passengers with different standing postures in three collision acceleration conditions.

(a) The lower limit acceleration condition (5.67 g)

(b) The middle acceleration condition (6.85 g)

(c) The upper limit acceleration condition (8.0 g)