Civil engineers : Design roads, buildings, transportation systems, and other large-scale construction projects. Category also include :
I- Structural engineers
II- Geological engineers
III- Transportation and construction engineering
Industrial engineers : Plan and design industrial and business facilities for the best product quality and employee working conditions.
Materials engineers : Study of soil, metals, organic and composed materials (asphalt, cement) ceramics, plastics, and composites to design materials for applications that may involve transportation, communication or power production.
Mechanical engineers :
Create machines and may work on transportation systems, power production or performance analysis