Abstract: The present invention relates to a method for coagulation and dispersion of fog and an installation thereof, in particular a system for fog dispersal over automobile roads, highways, roundabouts, and rail roads. The process produces fog or mist particle coagulation using fields of sonic, ultrasonic or electromagnetic waves generated with a power density level and then projected to a selected area of an open space where they produce forces on particles and then movement of abovementioned particles, said movement producing coagulation and further aggregation.