The potential of vehicle and road infrastructure interventions in fatal bicyclist accidents on Swedish roads—What can in-depth studies tell us?

Figures & data

Figure 1. The chain of events leading up to a crash. From Rizzi (2016). Reprinted with permission.

Table 1. Distribution of fatalities per vehicle type.

	Rural roads	Urban roads	Total
	(n = 82) (%)	(n = 102) (%)	(n = 184) (%)
Single	13	25	20
Bicycle into door/bicycle or pedestrian	1	10	6
Passenger car	60	35	46
HGV	9	18	13
LGV	5	3	4
Bus	5	3	4
Other vehicle types	6	7	7

Table 2. Distribution of fatalities by accident type.

	Rural roads	Urban roads	Total
	(n = 82) (%)	(n = 102) (%)	(n = 184) (%)
Single, other	18	38	29
Crossing, bicycle from left	20	20	20
Crossing, bicycle from right	11	17	14
Longitudinal, bicycle struck in the rear	23	4	13
Longitudinal, bicycle turning left	21	6	13
Vehicle turning right, bicycle same direction	—	11	6
Oncoming, bicycle turning left	5	1	3
Vehicle turning	2	4	3

Table 3. Overview of possible interventions to prevent fatalities.

	Rural roads	Urban roads	Total
	(n = 82) (%)	(n = 102) (%)	(n = 184) (%)
Road infrastructure	77	74	75
Vehicle	65	52	57
Bicycle helmet	28	43	36
Total addressed	90	91	91
No intervention identified	10	9	9

Figure 2. Estimate of the future development of fatal injuries among bicyclists on rural and urban roads as an effect of the implementation of vehicle safety technologies listed in the Appendix. Dotted lines = fast implementation rate; solid lines = expected implementation rate.

Table 4. Potentials of infrastructure interventions to prevent fatalities.

	Rural roads	Urban roads	Total
	(n = 82) (%)	(n = 102) (%)	(n = 184) (%)
Separate path for bicycle outside the road	46	17	30
Bicycle crossing with speed calming measures	20	35	28
Changed speed limit	10	20	15
Roundabout	7	21	15

Rizzi M. Towards a Safe System Approach to Prevent Health Loss Among Motorcyclists—The Importance of Motorcycle Stability as a Condition for Integrated Safety [PhD dissertation]. Gothenburg, Sweden: Chalmers University of Technology; 2016.

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