The team at Amsterdam-based InventDesign has posted some interesting ideas on using gobos and color indicators to help with social distancing for COVID-19. The page is in Dutch but the sketches are clear. I’ve reposted a few below for posterity.
Using small LED projectors to image gobo patterns on floor surfaces:


Floor projections like these have been in use by IKEA stores for many years now:

InventDesign proposes using colored lines of light to indicate directional paths, somewhat like factory “andon” indicators:

Here’s hoping that the team at InventDesign finds some interest in these ideas!