You put small clips on the bottom of the cable trays. In a corner of the room you have a pot with a plant such as a philodendron. It grows up to the cable trays and along.
I've seen this done just using bent paper clips hanging from the frames holding ceiling tiles. It made for a great office with all that green overhead. Light-weight office plants won't bother the cables if they curl a bit into the trays. If someone is working in the tray, she can just cut off anything in the way.
The office I saw used philodendron, but there may be better plants; it depends on the green thumbs available.
This treats human beings as if they were replaceable robots. In many ways I look forward to a future where actual robots do much of the work. I would trust them much more than most doctors I have met.
There are times, however, when human compassion makes all the difference. These nurses that were fired, will their replacements be as good? If they are not, do you consider the fact that the replacements have the flu vaccine a fair trade?
To iterate is human, to recurse, divine. -- Robert Heller