Correcting the Cognitive Bias for Commuting Time to Relieve the Driving Stress Level in Snow Weather Condition: A Naturalistic Driving Study in Harbin, China

Table 2

Descriptive statistics of participants’ self-reported stress levels in various scenarios.

No.	Items	Baseline driving scenario (clear weather conditions)	Comparative driving scenario (snow weather conditions)
		Mean	Mean (% changes)
1	When driving, how often have you been upset because of some driving events that happened unexpectedly?	2.397	3.886 (+62.12%)
2	When driving, how often have you felt that you were unable to control the vehicle?	1.359	3.598 (+164.75%)
3	When driving, how often have you felt nervous and stressed?	1.158	3.885 (+235.49%)
4	When driving, how often have you felt that you were unable to cope with the changing traffic conditions?	1.298	3.157 (+143.22%)
5	When driving, how often have you found that you could not cope with the driving events?	1.169	2.968 (+153.89%)
6	When driving, how often have you felt that you were unable to control the arrival time?	1.168	3.986 (+241.27%)
7	When driving, how often have you felt difficulties in the traffic conditions that were piling up so high that you could not overcome them?	1.195	2.175 (+82.01%)
Overall stress scores		1.392	3.379 (+142.74%)