I spotted new speed cameras on the First Ring Road. I think they measure your average speed because there are two cameras located at the start of the First Ring Road and two more located at the end. The first pair is located right after the highway 50 bridge if you’re heading from the Sheraton roundabout towards the Gulf Road. The road is only two lanes at that point and there is a camera pointing at each lane. The second pair is located right after the Istiqlal Highway bridge (road 30) when the multi-lane road becomes two lanes again.
The way these speed cameras work is they take a picture of your license plate at the first camera and then take a picture of your license plate after the second camera. It calculates the time it took from Camera A to Camera B and then calculates your average speed, if it’s higher than the maximum speed limit then you’re fined.