Development of a Residential Road Collision Warning Service Based on Risk Assessment

Table 4

Sample description.

Sample attributes		Number of samples	%
Gender	Male	114	75.5
	Female	37	24.5
Age	20’s	78	51.7
	30’s	41	27.2
	40’s	15	9.9
	50’s	12	7.9
	Over 60	5	3.3
Mobility handicapped	Yes	1	0.7
	No	150	99.3
Transportation mode	On foot	117	77.5
	Vehicle	26	17.2
	Bicycle	5	3.3
	Personal mobility	3	2.0
Working or visiting period	Less than six months	52	34.4
	Six months∼one year	26	17.2
	More than one year	73	48.4
Accident risk experience	Yes	49	32.5
	No	102	67.5
Necessity to improve traffic safety on KAIST Seoul Campus	Necessary	119	78.8
	Not necessary	32	21.2
Contribution of service to traffic safety	(Strongly) did not contribute	2	1.3
	Did not contribute	5	3.3
	Neutral	28	18.5
	Contributed	99	65.6
	(Strongly) contributed	17	11.3