When we say public works these are usually constructions that can be used by the general public like roads, bridges and high ways.   In constructing these, a screener can assist not only from completing the project but also in saving a lot of the city’s revenue.  A screener can usually be attached to construction machines and can hold, sort and transport a large amount of materials in just one scoop.   This makes a project take less time compared in using carts in transporting such materials.  Public works today can be less costly and faster to do with a screener at hand.