When working with alternative driveway surfaces, it is important to understand how different materials react to different conditions. A proper driveway should always be dug down and have large gravel or crushed stone for a base.
In climates where homeowners must have their driveways plowed, top layers of loose gravel are worthless. The plow blades will just push the gravel around, leaving a huge mess in the spring.
Staymat or crushed stone with fines should be rolled on top of the gravel layer. The jagged edges of crushed stone will allow the aggregate to pack better than the round shape of gravel. The fine dust mixed in with the stone will act as cement, creating a hard, smooth surface. If you want, you can add a thin layer of crushed stone or pea gravel to the top of the crushed stone mix to control dust.