Table 5.

Summary of the questionnaire responses on the take-over perception asked after each TOR.

Question group	HMI	M	SD	p-values
G11—TOR urgency	Baseline	2.73	0.73	pBC = 0.042
	Red	3.16	0.79	pRB = 0.613
	Blue	3.32	0.88	G12—TOR Stress	Baseline	2.15	0.70	pBC = 0.036
	Red	2.64	0.74	pRB = 0.829
	Blue	2.70	0.71

Means and standard deviations were calculated for every HMI along with the corresponding p-values.