Table 3:

Specific causation factors

Specific Causation Factor	Car drivers		Motorcyclists		Pedestrians		Bicyclists		Total
Observation	114	6%	18	6%	4	3%	11	7%	147	6%
Interpretation	293	16%	39	14%	30	21%	35	24%	397	16%
Planning	232	13%	58	20%	22	16%	39	27%	351	15%
Temporary person related function	460	25%	52	18%	39	28%	19	13%	570	24%
Permanent person related functions	39	2%	1	0%	4	3%	1	1%	45	2%
Temporary HMI	7	0%		0%		0%		0%	7	0%
Permanent HMI problem	14	1%		0%	1	1%		0%	15	1%
Equipment	33	2%	4	1%		0%	1	1%	38	2%
Communication	283	15%	35	12%	17	12%	15	10%	350	14%
Maintenance	76	4%	10	4%		0%	3	2%	89	4%
Experience and training	67	4%	24	8%	6	4%	5	3%	102	4%
Organisation	10	1%	7	2%	1	1%	1	1%	19	1%
Design of traffic environment	216	12%	35	12%	16	11%	17	12%	284	12%
Vehicle design	3	0%	2	1%		0%		0%	5	0%
Total	1847	100%	285	100%	140	100%	147	100%	2419	100%