Shahroud industrial Zone (SIZ) located in Semnan province in north east of Iran (Figure 1) which is approximately 5 km from the city center of Shahroud. It has a planned
area of nearly 410 hectare and at the end of 2011, approximately, 1235 workers or managers travel every day between the city of Shahroud and the zone. Through
almost one decade of development,Shahroud industrial Zone has established seven groups of industries: electronic (7 units), foodstuffs (9 units), metal (12 units), chemicals (9 units), nonmetal (6 units), textile (3 units) and Cellulose industry (3 units). Iran industrial estates have the responsibility for managing Shahroud industrial Zone and set up an administrative agency to oversee the daily administration of the zone