Driver Preference and Level of Trust Related to Real-Time Road Freezing Risk Information

Table 2

Values of variables used in the ordinal regression.

Independent variable	Range
Gender	1: male
	2: female
Age	1: 21–30
	2: 31–40
	3: 41–50
	4: >50
Type of vehicle	1: private
	2: commercial
Driving experience	1: <1 year
	2: 1–5 years
	3: >5 years
Accident experience	1: yes
	2: no
Trip purpose	1: business
	2: leisure
	3: commute
	4: other
Route choice patterns	1: based on real-time traffic information
	2: based on both personal experience and real-time traffic information
	3: based on personal experience
	4: based on familiarity regardless of other factors
Familiarity	1: familiar
	2: normal
	3: not familiar
Commute time	1: constant
	2: not constant
Driving behavior	1: respects rules
	2: adheres to surrounding traffic speed
	3: drives carefully
Level of education	1: high school
	2: university
	3: graduate school
Occupation	1: self-employed
	2: general jobs
	3: student
	4: professional
Annual mileage	1: ≥10000 km
	2: <10000 km
Level of trust	1: low
	2: medium
	3: high