The best way I experienced in dust control measures in construction roads is to cover these roads by crushed stone, compact it by the compactor, and finally water it frequently. This reduces dust generation occur by construction trucks and vehicles use these roads during construction.
The challenge you may face is how to compromise between the need of water for watering the roads and the rationalization of water consumption particularly when the project is located in a country has no recycling water system and the water connected to the project is potable.

Any alternative measures?