I don't think these "crossing lights" are really going to help anything. Its not like we aren't aware that taxiing across an active runway is a bad thing. I would venture a guess that those involved in most runway incursions aren't even aware they're pulling onto an active runway. Maybe more lights to signify that you ARE near a runway, but the whole "red means stop, green means go" is probably a waste of money.
It sounds like some company or firm got a contract to install these lights which means $$$$$$$$$$$$$$$$$$. Nothing more. I personally think we do not need these lights fix the regs I agree with the post above me.
They have them in DFW. They really don't do much for me. Unless I hear those magical words from Tower/Ground (Sometimes I verifiy it a couple of times)I aint going nowhere. I don't care what color those lights are.