The danger areas around trucks and buses where crashes are more likely to occur are called No-Zone!

The danger areas around trucks and buses where crashes are more likely to occur are called No-Zone! 

Don't hang out in a No-Zone! No-Zones are large areas around trucks, buses, and other large vehicles in which cars may disappear into blind spots or get so close that they restrict the truck driver's ability to stop or maneuver safely. No-Zones exist to the front, rear, and sides of the vehicle. It is impossible to completely avoid a large vehicle's No-Zones. However, do not remain in a No-Zone any longer than necessary to safely pass the vehicle. And never tailgate a truck.