Semi-heavy traffic congestion on several roads leading to Tehran/Qazvin-Karaj and Shahriar-Tehran On the Qazvin-Karaj-Tehran highway, between Shahid Kalantari terminal and the clock bridge to the Wardward area, semi-heavy traffic congestion was reported. Colonel Gulinia added: Semi-heavy traffic is flowing on the Sava-Tehran highway, Nasimshahr area, as well as on the Shahrir-Tehran highway.