It seems Dubai is taking this whole radar thing very seriously. It used to be that once you hit Saih al Shaib on the way from Abu Dhabi (which is actually the beginning of Dubai), you only had 2 radars until your hit Jebel Ali.
A few months ago, they started placing a mobile radar somewhere along the way. It caught me once, even though I knew it was somewhere there...stupid me...
A few weeks ago, a bunch of radars were added...and by a bunch, I mean a LOT. There are radars every few meters now, so there's really no way to exceed the 120 km/h speed limit.
A lot of people still don't know about these radars though, because on a recent trip back from Abu Dhabi, I saw 3 radars flashing in a span of 5 minutes...and no, it wasn't me!