| | Series | Causes | Incidence rate |
| | I-G1 | Unwise distance, inattention to traffic conditions, disrespect to red light, | 60% | | disrespect to pedestrian passing, disrespect to stop sign, | | disrespect to giving way sign, pedestrian crossing the road suddenly, | | drunk driver, disrespect for giving the right of way, | | and unexpected change of track |
| | I-G2 | Overtaking without enough time or space, improper turns, | 15% | | driving under the influence of alcohol, backward driving, | | driving in opposite direction, recklessness in pedestrian, | | pedestrian outside the allowed crossing, improper speed, | | alcohol in pedestrian, and passenger gets in or gets out of a moving vehicle |
| | I-G3 | Road deficiencies, mechanical failures, undetermined causes, and noncategorized causes | 25% |
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