Point 2 mentions "research into active means of detecting the attention state of drivers and intervening in the event of inattention" (my emphasis), so it's rather a dead man's handle than a camera.
We'll see...
In this context, I would take active to mean non-passive. A deadman's handle is (I would argue) a passive system. It is activated to prove alertness, and deactivated to prove either a lack of alertness or the driver's hand coming off the handle. A camera and seat shaker are more active in that they are constantly analysing the driver's face to try and ascertain how alert they are.
I would have also thought that the line about "we are pleased to see some tram operators starting to work on these" would have been referring to these devices, although I will admit that I haven't really paid any attention to any other tramways that may or may not be doing some of the other items on the list as well. But like you said, we'll see.