The Modern Day Asset Pack - Hazard Signs provides you with over 100 hazard, warning and industrial signs for your modern day and futuristic game Each sign comes with several texture variations, including clean, rusty and dirty, as well as some text free variations, providing several hundred choices.
You'll find signs for danger, chemical hazards, slippery floors, electricity, dog on guard, and loads more. Check it out for yourself here:
https://store.steampowered.com/app/2682830/GameGuru_MAX_Modern_Day_Asset_Pack__Hazard_Signs/