| Code Figure | Meaning |
|---|---|
| 0 | Reserved |
| 1 | ARGOS (Accident Reporting and Guiding Operational System) |
| 2 | JRODOS (Java version of Real time Online Decision SuppOrt System) |
| 3 | Assimilated (Scenario retrieved from measurements) |
| 4 | Center (scenario by originating center) |
| 5-254 |
Reserved |
| 255 | Missing |