construction site
heavy machinery piles of building materials large, open area partially-built structures scaffolding safety barriers workers in hard hats and safety vests signs warning of potential hazards
construction site which has heavy machinery construction site which has piles of building materials construction site which has large, open area construction site which has partially-built structures construction site which has scaffolding construction site which has safety barriers construction site which has workers in hard hats and safety vests construction site which has signs warning of potential hazards