Table 1. Open in new tab Description and... | Oxford Academic

Table 1.

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Description and descriptive statistics of driver injury severity and its related factors in work zone crashes.

Variable	Description	Percentage/%
Driver injury severity	No apparent injury = 1	75.7
	Minor injury = 2	19.7
	Serious injury or fatality = 3	4.6
Driver sex	Male = 1*	59.8
	Female = 2	40.2
Driver age	<25 = 1*	20.0
	25 to 60 = 2	64.3
	>60 = 3	15.7
Alcohol use	No alcohol use = 1*	96.7
	Alcohol use = 2	3.3
Vehicle type	Automobile = 1*	49.9
	Utility vehicle = 2	21.3
	Truck = 3	28.8
Vehicle age (years)	<3 = 1*	24.7
	3 to 13 = 2	54.2
	>13 = 3	21.1
Speeding	No speeding = 1*	92.9
	Speeding = 2	7.1
Horizontal alignment	Straight = 1*	92.4
	Curve = 2	7.6
Vertical alignment	Flat = 1*	81.0
	Uneven = 2	19.0
Speed limit	≤30 mph = 1*	7.4
	30 mph to 60 mph = 2	67.4
	≥60 mph = 3	25.2
Weather conditions	Clear = 1*	73.9
	Cloudy = 2	17.6
	Rain/snow = 3	8.5
Lighting conditions	Daylight = 1*	74.5
	Dawn/dusk = 2	2.8
	Dark = 3	22.7
Area	Urban = 1*	73.7
	Rural = 2	26.3
Traffic control	No traffic control = 1*	59.6
	Traffic control = 2	40.4
Collision type	Fixed object = 1*	14.0
	Rear end = 2	53.8
	Angle = 3	12.7
	Sideswipe = 4	16.9
	Other = 5	2.6

Variable	Description	Percentage/%
Driver injury severity	No apparent injury = 1	75.7
	Minor injury = 2	19.7
	Serious injury or fatality = 3	4.6
Driver sex	Male = 1*	59.8
	Female = 2	40.2
Driver age	<25 = 1*	20.0
	25 to 60 = 2	64.3
	>60 = 3	15.7
Alcohol use	No alcohol use = 1*	96.7
	Alcohol use = 2	3.3
Vehicle type	Automobile = 1*	49.9
	Utility vehicle = 2	21.3
	Truck = 3	28.8
Vehicle age (years)	<3 = 1*	24.7
	3 to 13 = 2	54.2
	>13 = 3	21.1
Speeding	No speeding = 1*	92.9
	Speeding = 2	7.1
Horizontal alignment	Straight = 1*	92.4
	Curve = 2	7.6
Vertical alignment	Flat = 1*	81.0
	Uneven = 2	19.0
Speed limit	≤30 mph = 1*	7.4
	30 mph to 60 mph = 2	67.4
	≥60 mph = 3	25.2
Weather conditions	Clear = 1*	73.9
	Cloudy = 2	17.6
	Rain/snow = 3	8.5
Lighting conditions	Daylight = 1*	74.5
	Dawn/dusk = 2	2.8
	Dark = 3	22.7
Area	Urban = 1*	73.7
	Rural = 2	26.3
Traffic control	No traffic control = 1*	59.6
	Traffic control = 2	40.4
Collision type	Fixed object = 1*	14.0
	Rear end = 2	53.8
	Angle = 3	12.7
	Sideswipe = 4	16.9
	Other = 5	2.6

Note: * The reference category; 1 mph = 1.6 km/h.

Table 1.

Open in new tab

Description and descriptive statistics of driver injury severity and its related factors in work zone crashes.

Variable	Description	Percentage/%
Driver injury severity	No apparent injury = 1	75.7
	Minor injury = 2	19.7
	Serious injury or fatality = 3	4.6
Driver sex	Male = 1*	59.8
	Female = 2	40.2
Driver age	<25 = 1*	20.0
	25 to 60 = 2	64.3
	>60 = 3	15.7
Alcohol use	No alcohol use = 1*	96.7
	Alcohol use = 2	3.3
Vehicle type	Automobile = 1*	49.9
	Utility vehicle = 2	21.3
	Truck = 3	28.8
Vehicle age (years)	<3 = 1*	24.7
	3 to 13 = 2	54.2
	>13 = 3	21.1
Speeding	No speeding = 1*	92.9
	Speeding = 2	7.1
Horizontal alignment	Straight = 1*	92.4
	Curve = 2	7.6
Vertical alignment	Flat = 1*	81.0
	Uneven = 2	19.0
Speed limit	≤30 mph = 1*	7.4
	30 mph to 60 mph = 2	67.4
	≥60 mph = 3	25.2
Weather conditions	Clear = 1*	73.9
	Cloudy = 2	17.6
	Rain/snow = 3	8.5
Lighting conditions	Daylight = 1*	74.5
	Dawn/dusk = 2	2.8
	Dark = 3	22.7
Area	Urban = 1*	73.7
	Rural = 2	26.3
Traffic control	No traffic control = 1*	59.6
	Traffic control = 2	40.4
Collision type	Fixed object = 1*	14.0
	Rear end = 2	53.8
	Angle = 3	12.7
	Sideswipe = 4	16.9
	Other = 5	2.6

Variable	Description	Percentage/%
Driver injury severity	No apparent injury = 1	75.7
	Minor injury = 2	19.7
	Serious injury or fatality = 3	4.6
Driver sex	Male = 1*	59.8
	Female = 2	40.2
Driver age	<25 = 1*	20.0
	25 to 60 = 2	64.3
	>60 = 3	15.7
Alcohol use	No alcohol use = 1*	96.7
	Alcohol use = 2	3.3
Vehicle type	Automobile = 1*	49.9
	Utility vehicle = 2	21.3
	Truck = 3	28.8
Vehicle age (years)	<3 = 1*	24.7
	3 to 13 = 2	54.2
	>13 = 3	21.1
Speeding	No speeding = 1*	92.9
	Speeding = 2	7.1
Horizontal alignment	Straight = 1*	92.4
	Curve = 2	7.6
Vertical alignment	Flat = 1*	81.0
	Uneven = 2	19.0
Speed limit	≤30 mph = 1*	7.4
	30 mph to 60 mph = 2	67.4
	≥60 mph = 3	25.2
Weather conditions	Clear = 1*	73.9
	Cloudy = 2	17.6
	Rain/snow = 3	8.5
Lighting conditions	Daylight = 1*	74.5
	Dawn/dusk = 2	2.8
	Dark = 3	22.7
Area	Urban = 1*	73.7
	Rural = 2	26.3
Traffic control	No traffic control = 1*	59.6
	Traffic control = 2	40.4
Collision type	Fixed object = 1*	14.0
	Rear end = 2	53.8
	Angle = 3	12.7
	Sideswipe = 4	16.9
	Other = 5	2.6

Note: * The reference category; 1 mph = 1.6 km/h.