Speed Radar flashes more than 100km/hr in Salam Street?

The radar was noticeably going crazy from afar flashing the likes, and I noticed it was doing so for cars driving more than 100km/hr, even though we usually drive at 140km/hr by this point (we never got flashed from before).

By the time I got there and was between 100-120km/hr, I got a flash too. What I recall the radar was positioned on the right side of Salam Street on the way to Dubai, more or less on where we used to take a right to go to the airport (right lane/entrance closed due to road maintenance).

Here's the exact location on Google Maps; does anyone have any clue if it's a faulty radar, or did they reduce the limit to 100km/hr exactly for that part of Salam Street?