HAZARD - Debris
CHANGED TRAFFIC CONDITIONS - due to an earlier incident
HAZARD - Fallen tree
BREAKDOWN - Semi-trailer
CRASH - Car
HAZARD - Ladder
CHANGED TRAFFIC CONDITIONS - Unplanned
CRASH - Car towing caravan
HAZARD - Diesel spill
CHANGED TRAFFIC CONDITIONS - Vehicle salvage due to earlier incident
Roundabouts reduce crash severity compared to traffic lights.