Simple ways to control dust on a gravel driveway include applying water or salt to the driveway. Making sure the driveway is properly maintained, with all cracks and depressions filled in and leveled, helps to minimize dust problems. Since wind blows dust from gravel driveways, installing windbreaks also helps to control the problem. Finally, driving slowly minimizes the amount of dust that gets kicked up.
Angie's List recommends spraying down the dust on a driveway with water. Homeowners with built-in sprinkler systems can aim the sprinklers at the driveway and keep the problem under control; however, during summer heat, water may evaporate quickly and be less useful at controlling dust. In this case, treating the driveway with calcium chloride to absorb the water may be the solution. Applying salts to the driveway can be dangerous, however, and may require using a contractor.
When a gravel driveway is uneven, standing puddles of water can bring dirt up to the surface where it becomes dust once it dries. A well-built driveway is less likely to have this problem, as is one that is well-maintained.
Cars and wind cause dust to fly around from a gravel driveway, so dealing with the movement of air can help calm a dust problem. Driving more slowly helps keep dust to a minimum. Building a windbreak along the driveway can alter the airflow so that the dust no longer blows around. While fences are good windbreaks, hedges not only look attractive but help to control the wind.