| Driver contributory factor | Severity of accident | Total |
| Fatal |
Serious |
Slight |
| Exceeding speed limit |
3 |
3 |
6 |
12 |
| Driving too fast for road environment |
7 |
87 |
246 |
340 |
| Driving too fast for other road users |
6 |
28 |
109 |
143 |
| Failing to keep to nearside of road |
0 |
3 |
17 |
20 |
| Driving too close to kerb |
1 |
50 |
338 |
389 |
| Driving too close to vehicle in front |
1 |
199 |
1716 |
1916 |
| Driving too close to vehicle alongside |
0 |
10 |
101 |
111 |
| Overtaking on offside negligently |
2 |
32 |
187 |
221 |
| Overtaking on nearside negligently |
1 |
10 |
102 |
113 |
| Careless lane changing |
7 |
142 |
994 |
1143 |
| Reversing negligently |
6 |
69 |
346 |
421 |
| Turning right negligently |
10 |
94 |
430 |
534 |
| Turning left negligently |
4 |
43 |
241 |
288 |
| 'U-turning' negligently |
1 |
12 |
94 |
107 |
| Stopping negligently |
0 |
9 |
62 |
71 |
| Starting negligently |
14 |
105 |
595 |
714 |
| Disobeying traffic signal |
9 |
78 |
289 |
376 |
| Disobeying stop sign (Halt) |
0 |
15 |
75 |
90 |
| Disobeying give way sign (Slow) |
1 |
14 |
144 |
159 |
| Disobeying double white lines |
0 |
2 |
11 |
13 |
| Disobeying directions of police officer |
0 |
0 |
2 |
2 |
| Disobeying school crossing patrol |
0 |
0 |
1 |
1 |
| Opening door negligently |
0 |
13 |
98 |
111 |
| Overtaking in zebra controlled area |
0 |
1 |
3 |
4 |
| Failing to stop at zebra crossing |
0 |
5 |
17 |
22 |
| Failing to signal movement correctly |
0 |
1 |
11 |
12 |
| Emerging from side road negligently |
1 |
46 |
251 |
298 |
| Emerging from private drive negligently |
0 |
3 |
31 |
34 |
| Driving on wrong side of road |
2 |
28 |
97 |
127 |
| Vision affected by atmospheric conditions |
1 |
1 |
7 |
9 |
| Distracted by action inside vehicle |
1 |
22 |
86 |
109 |
| Distracted by action outside vehicle |
4 |
35 |
190 |
229 |
| Losing control (no apparent reason) |
8 |
85 |
255 |
348 |
| Asleep or drowsy |
5 |
22 |
66 |
93 |
| Consumption of drugs |
0 |
1 |
1 |
2 |
| Consumption of alcohol |
4 |
27 |
66 |
97 |
| Sudden illness |
2 |
5 |
18 |
25 |
| 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 |
1 |
0 |
1 |
| Dazzled by sun |
0 |
0 |
2 |
2 |
| Dazzled by headlight |
0 |
0 |
0 |
0 |
| Dazzled by other lights |
0 |
0 |
1 |
1 |
| Losing control of vehicle |
19 |
250 |
1100 |
1369 |
| Trying to avoid collision or otherwise: swerving |
2 |
142 |
643 |
787 |
| Trying to avoid collision or otherwise: skidding |
2 |
27 |
102 |
131 |
| Trying to avoid collision or otherwise: stopping suddenly |
0 |
48 |
294 |
342 |
| Using telephone while driving |
1 |
0 |
4 |
5 |
| Listening to walkman while cycling |
0 |
0 |
1 |
1 |
| Listening to radio/music while driving |
0 |
0 |
0 |
0 |
| Other driver factor |
27 |
304 |
1606 |
1937 |