Major activities of the department are in two sections, namely: independent and dependent sections.

1st  section :

Designing for road making, railways, landscaping, surface water collection and drainage, parking lots, freight and passenger terminals, geometric urbanization, traffic studies and topographic surveying projects which are carried out independent of construction projects of the company.

2nd section :

In fulfillment of such activities, the department provides specialized information and guidelines regarding the constructions location and lay-out, location of underground and above ground installations, access roads and so on, for other departments of the company, such as the metallurgical process engineering, mechanics, fluids, electrics, automation and communications, construction and architecture depts., where the general plan is finally completed.