| Driver contributory factor | Severity of accident | Total |
| Fatal |
Serious |
Slight |
| Exceeding speed limit |
6 |
3 |
10 |
19 |
| Driving too fast for road environment |
7 |
44 |
120 |
171 |
| Driving too fast for other road users |
0 |
20 |
51 |
71 |
| Failing to keep to nearside of road |
0 |
3 |
8 |
11 |
| Driving too close to kerb |
1 |
20 |
116 |
137 |
| Driving too close to vehicle in front |
1 |
176 |
1410 |
1587 |
| Driving too close to vehicle alongside |
0 |
4 |
50 |
54 |
| Overtaking on offside negligently |
3 |
40 |
173 |
216 |
| Overtaking on nearside negligently |
2 |
15 |
80 |
97 |
| Careless lane changing |
0 |
96 |
730 |
826 |
| Reversing negligently |
5 |
63 |
319 |
387 |
| Turning right negligently |
3 |
84 |
392 |
479 |
| Turning left negligently |
1 |
26 |
161 |
188 |
| 'U-turning' negligently |
1 |
11 |
89 |
101 |
| Stopping negligently |
0 |
4 |
27 |
31 |
| Starting negligently |
3 |
49 |
251 |
303 |
| Disobeying traffic signal |
6 |
50 |
193 |
249 |
| Disobeying stop sign (Halt) |
0 |
2 |
40 |
42 |
| Disobeying give way sign (Slow) |
0 |
22 |
137 |
159 |
| Disobeying double white lines |
0 |
8 |
15 |
23 |
| Disobeying directions of police officer |
1 |
0 |
4 |
5 |
| Disobeying school crossing patrol |
0 |
0 |
0 |
0 |
| Opening door negligently |
0 |
9 |
43 |
52 |
| Overtaking in zebra controlled area |
0 |
0 |
2 |
2 |
| Failing to stop at zebra crossing |
2 |
6 |
13 |
21 |
| Failing to signal movement correctly |
0 |
1 |
4 |
5 |
| Emerging from side road negligently |
5 |
35 |
206 |
246 |
| Emerging from private drive negligently |
1 |
1 |
16 |
18 |
| Driving on wrong side of road |
1 |
21 |
72 |
94 |
| Vision affected by atmospheric conditions |
0 |
1 |
3 |
4 |
| Distracted by action inside vehicle |
0 |
0 |
17 |
17 |
| Distracted by action outside vehicle |
0 |
6 |
20 |
26 |
| Losing control (no apparent reason) |
5 |
41 |
104 |
150 |
| Asleep or drowsy |
2 |
29 |
57 |
88 |
| Consumption of drugs |
0 |
0 |
1 |
1 |
| Consumption of alcohol |
0 |
21 |
53 |
74 |
| Sudden illness |
1 |
6 |
5 |
12 |
| Physical handicap (vision) or mental handicap |
0 |
0 |
0 |
0 |
| Physical handicap (hearing) or mental handicap |
0 |
0 |
0 |
0 |
| Physical handicap (others) or mental handicap |
0 |
0 |
0 |
0 |
| Dazzled by sun |
0 |
0 |
1 |
1 |
| Dazzled by headlight |
0 |
1 |
3 |
4 |
| Dazzled by other lights |
0 |
0 |
2 |
2 |
| Losing control of vehicle |
15 |
209 |
772 |
996 |
| Trying to avoid collision or otherwise: swerving |
1 |
65 |
235 |
301 |
| Trying to avoid collision or otherwise: skidding |
1 |
11 |
32 |
44 |
| Trying to avoid collision or otherwise: stopping suddenly |
1 |
9 |
76 |
86 |
| Using telephone while driving |
0 |
1 |
2 |
3 |
| Listening to walkman while cycling |
0 |
0 |
0 |
0 |
| Listening to radio/music while driving |
0 |
0 |
0 |
0 |
| Other driver factor |
45 |
614 |
2207 |
2866 |