| Components | Variable code | Variable name |
| Building characteristic | x1 | Building use |
| x2 | Building structure | |
| x3 | Building scale | |
| x4 | Building deterioration | |
| x5 | Building density | |
| x6 | Gas usage | |
| x7 | Electricity usage | |
| Economy factor | x8 | Occupant |
| x9 | Fire vulnerable people | |
| x10 | Arson | |
| x11 | Road condition | |
| Climate factor | x12 | Daily average temperature |
| x13 | 24 h precipitation | |
| Fire protection | x14 | Fire protection facility |
| x15 | Fire officer | |
| x16 | Noncombustible material |