Asadabad road bridge Khondab was supervised by the General Directorate of Construction and Development of Roads of the Northwest Region of the country and Consulting Engineers of Ayokh Roads was carried out by Chavosh rah bana.

The completion project of the Sanandaj - Hamedan axis (between Qorveh and Dashbolagh) is being carried out under the supervision of the General Directorate of Construction and Development of Roads of the Western and Central Regions of the Country and consulting engineers Mashara by Chavosh Rahbana Company

The project for the reconstruction of the route from Hamedan to Gol Tappeh Ali Sadr is under the supervision of the Northwest Road Construction and Development General Directorate and consulting engineers Vineh Sar, being executed by Chavosh Rahbana Company

This 10-km long project was implemented under the supervision of the General Directorate of Construction and Development of Area 5 Transport and Logistics Consulting Engineers Co., Ltd., by Chavosh rah bana co

The second lane of the Hamedan-Sanandaj Axis is under the supervision of the Deputy for Construction and Development of Road Networks, Northwest Road Construction Section, and consulting engineers of Road Traffic by Chavosh Rahbana Company

The project was carried out by the company of Chavosh-rah Bana Company, under the supervision of the Deputy Director of Construction and Development of the Roads Network - North-West Road Construction Section and Moshara Consultant Engineers

The second part of the Hamadan-Sanandaj railway under the supervision of the General Directorate of Construction and Development of the Railway District and Haraz Road Consulting Engineers was carried out by Chavavosh rah bana Construction Company