That's been around at least as long as I've had R&D.
yes this is a good ideaI do have one idea. My little suggestion : Change the current solid warning signs into something more futuristic, i.e. holograms. If the signs are just semi-transparent holograms, they will not interact/collide with player techs. So no more worries into ramming them and destroying parts of your tech while testing out in the R&D.
I understand there is a bigger space out there for us to test in the R&D but IMFO (in my frank opinion) the current design requires a change.