| Influence Factors | Parameter Name | Value |
| Time | Month of the year | 1 to 12 |
| Day of the week | 1 to 7 | |
| Hour of the day | 0 to 23 | |
| Space | Accident areas | Outer suburb areas = 1; Suburb areas = 2; Urban areas = 3; Others = 4 |
| Driver | Driver’s gender | Male = 1; Female = 0 |
| Driver’s age | Actual value; Unknown = 0 | |
| Vehicle | Vehicle type | Motor vehicles = 1; Two-wheeled electric bicycle = 2; Two-wheeled motorcycle = 3; Bicycle = 4; Three-wheeled motorcycle = 5; Pedicab = 6 |
| Casualties | Accident casualties | Death = 1; Injury = 2; Others = 3 |
| Driver’s casualties | Death = 1; Injury = 2; Unhurt = 3; Unknown = 4 | |
| Drunk driving type | Drunk driving type | DUI = 1; DWI = 2 |