Table T: Contributory factors: ranked 2021
Table T: Contributory factors: ranked 2021
| Number | As a % of all contributory factors1 | |||||
|---|---|---|---|---|---|---|
| Rank | Contributory Factor reported in each accident | Very likely | Possible | Total | % "very likely" | |
| 1 | Failed to look properly (D/R) | 706 | 143 | 849 | 83% | 17% |
| 2 | Failed to judge other pers path/speed (D | 290 | 99 | 389 | 75% | 8% |
| 3 | Loss of control | 297 | 45 | 342 | 87% | 7% |
| 4 | Poor turn or manoeuvre | 248 | 65 | 313 | 79% | 6% |
| 5 | Careless / reckless /in a hurry (D/R) | 206 | 68 | 274 | 75% | 6% |
| 6 | Slippery road (due to weather) | 167 | 83 | 250 | 67% | 5% |
| 7 | Pedestrian failed to look properly | 201 | 26 | 227 | 89% | 5% |
| 8 | Travelling too fast for the conditions | 118 | 54 | 172 | 69% | 3% |
| 9 | Exceeding speed limit | 93 | 37 | 130 | 72% | 3% |
| 10 | Impaired by alcohol (D/R) | 96 | 16 | 112 | 86% | 2% |
| 11 | Following too close | 67 | 41 | 108 | 62% | 2% |
| 12 | Disobeyed Give Way or Stop sign or marki | 93 | 13 | 106 | 88% | 2% |
| 13 | Sudden braking | 46 | 29 | 75 | 61% | 2% |
| 14 | Aggressive driving | 57 | 10 | 67 | 85% | 1% |
| 15 | Ped. careless / reckless /in a hurry | 50 | 17 | 67 | 75% | 1% |
| 16 | Inexperienced or learner driver/rider | 49 | 18 | 67 | 73% | 1% |
| 17 | Dazzling sun | 34 | 31 | 65 | 52% | 1% |
| 18 | Pedestrian impaired by alcohol | 55 | 9 | 64 | 86% | 1% |
| 19 | Crossed road masked by stationary/parked | 60 | 3 | 63 | 95% | 1% |
| 20 | Illness or disability (mental/physic) (D | 44 | 17 | 61 | 72% | 1% |
| 21 | Other | 46 | 14 | 60 | 77% | 1% |
| 22 | Swerved | 40 | 17 | 57 | 70% | 1% |
| 23 | Stationary or parked vehicle | 41 | 16 | 57 | 72% | 1% |
| 24 | Impaired by drugs (illicit/medicinal) (D | 34 | 21 | 55 | 62% | 1% |
| 25 | Road layout (eg bend, hill, narrow c-way | 27 | 27 | 54 | 50% | 1% |
| 26 | Ped. failed to judge vehicles path or sp | 30 | 15 | 45 | 67% | 1% |
| 27 | Distraction in vehicle | 12 | 32 | 44 | 27% | 1% |
| 28 | Junction overshoot | 32 | 8 | 40 | 80% | 1% |
| 29 | Deposit on road (eg oil, mud, chippings) | 25 | 15 | 40 | 63% | 1% |
| 30 | Disobeyed automatic traffic signal | 30 | 10 | 40 | 75% | 1% |
| 31 | Animal or other object in carriageway | 28 | 6 | 34 | 82% | 1% |
| 32 | Poor or defective road surface | 20 | 14 | 34 | 59% | 1% |
| 33 | Vehicle in course of crime | 31 | 0 | 31 | 100% | 1% |
| 34 | Too close to cyclist,horse or pedestrian | 20 | 11 | 31 | 65% | 1% |
| 35 | Inadequate/masked signs or road markings | 10 | 18 | 28 | 36% | 1% |
| 36 | Fatigue | 12 | 14 | 26 | 46% | 1% |
| 37 | Failed to signal / misleading signal | 11 | 15 | 26 | 42% | 1% |
| 38 | Rain, sleet, snow or fog | 13 | 13 | 26 | 50% | 1% |
| 39 | Road layout (eg bend, winding rd, hill c | 12 | 13 | 25 | 48% | 1% |
| 40 | Pedestrian wearing dark clothing at nigh | 14 | 10 | 24 | 58% | 0% |
| 41 | Junction restart | 16 | 8 | 24 | 67% | 0% |
| 42 | Dangerous action in carriageway (eg play | 22 | 2 | 24 | 92% | 0% |
| 43 | Ped. impaired by drugs (illicit/medicina | 16 | 6 | 22 | 73% | 0% |
| 44 | Nervous / uncertain / panic | 15 | 7 | 22 | 68% | 0% |
| 45 | Wrong use of pedestrian crossing facilit | 18 | 2 | 20 | 90% | 0% |
| 46 | Cyclist entering road from pavement | 18 | 2 | 20 | 90% | 0% |
| 47 | Illegal turn or direction of travel | 13 | 6 | 19 | 68% | 0% |
| 48 | Ped. disability or illness, mental/physi | 7 | 8 | 15 | 47% | 0% |
| 49 | Distraction outside vehicle | 7 | 8 | 15 | 47% | 0% |
| 50 | Emergency vehicle on call | 12 | 2 | 14 | 86% | 0% |
| 51 | Tyres illegal, defective or under-inflat | 8 | 5 | 13 | 62% | 0% |
| 52 | Stolen vehicle | 12 | 0 | 12 | 100% | 0% |
| 53 | Vehicle blind spot | 5 | 7 | 12 | 42% | 0% |
| 54 | Disobeyed pedestrian crossing facility | 9 | 2 | 11 | 82% | 0% |
| 55 | Defective traffic signals | 10 | 1 | 11 | 91% | 0% |
| 56 | Defective steering or suspension | 4 | 7 | 11 | 36% | 0% |
| 57 | Vehicle travelling along pavement | 9 | 1 | 10 | 90% | 0% |
| 58 | Inexperience with type of vehicle | 6 | 3 | 9 | 67% | 0% |
| 59 | Buildings, road signs, street furniture | 7 | 2 | 9 | 78% | 0% |
| 60 | Disobeyed double white line | 8 | 1 | 9 | 89% | 0% |
| 61 | Defective brakes | 3 | 6 | 9 | 33% | 0% |
| 62 | Dazzling headlights | 3 | 6 | 9 | 33% | 0% |
| 63 | Driver using mobile phone | 5 | 3 | 8 | 63% | 0% |
| 64 | Temporary road layout (eg contraflow) | 1 | 6 | 7 | 14% | 0% |
| 65 | Vegetation | 3 | 4 | 7 | 43% | 0% |
| 66 | Cyclist wearing dark clothing at night | 2 | 4 | 6 | 33% | 0% |
| 67 | Inexperience of driving on the left | 3 | 3 | 6 | 50% | 0% |
| 68 | Visor/windscreen dirty/scratched/frosted | 4 | 1 | 5 | 80% | 0% |
| 69 | Uncorrected defective eyesight | 3 | 1 | 4 | 75% | 0% |
| 70 | Traffic calming (eg road humps, chicanes | 2 | 2 | 4 | 50% | 0% |
| 71 | Vehicle door opened or closed negligentl | 2 | 2 | 4 | 50% | 0% |
| 72 | Not display lights at night / in poor vi | 3 | 0 | 3 | 100% | 0% |
| 73 | Overloaded or poorly loaded vehicle/trai | 2 | 0 | 2 | 100% | 0% |
| 74 | Sunken,raised or slippery inspection cov | 1 | 1 | 2 | 50% | 0% |
| 75 | Spray from other vehicles | 1 | 1 | 2 | 50% | 0% |
| 76 | Driving too slow for condits / slow vehi | 1 | 0 | 1 | 100% | 0% |
| 77 | Defective or missing mirrors | 1 | - | 1 | 0% | |
| Defective lights or indicators | 0 | 1 | 1 | 0% | ||
| All | 3,727 | 1,234 | 4,961 | 75% | 100% |
1. Includes only accidents where a police officer attended the scene and in which a contributory factor was reported.
2. Includes all contributory factors reported, even where the same CF is assigned more than once to an accident (i.e. to more than one particpant). Therefore the total differs from earlier tables.
(D/R) indicates Driver/Rider
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