| value | description |
|---|---|
| aquaplaningRisk | |
| danger | |
| dangerOfExplosion | |
| dangerOfFire | |
| emergencyVehiclesAtScene | |
| extraPolicePatrolsInOperation | |
| firemenDirectingTraffic | |
| helicopterRescueInProgress | |
| increasedRiskOfAccident | |
| lookOutForFlagman | |
| pilotCarInOperation | |
| policeDirectingTraffic | |
| policeInAttendance | |
| radiationHazard | |
| repairsInProgress | |
| rescueAndRecoveryWorkInProgress | |
| severalAccidentsHaveTakenPlace | |
| skidRisk | |
| slipperyPavements | |
| surfaceWaterHazard | |
| toxicLeak | |
| trafficBeingDirectedAroundAccidentArea | |
| trafficWardensDirectingTraffic | |
| other |