TL;DR
Give floor tiles like concrete more utility, by reducing the pollution emitted by machines on top of floor tilesWhat ?
My idea to make floor tiles more useful would be to reduce the pollution that is emitted by machines that are on floor tiles.The pollution reduction also should scale with the quality of the floor tile (no floor < stone brick floor < concrete < reinforced concrete)
The lore explanation for this could be something like, the machines just run smoother because they are placed on stable ground, so vibrations are properly cared for and leaking oil doesnt soak into the ground.
Why ?
I personally find that floor tiles to not have enough utility to them. Most people seem only to use them for looks and to be able to walk just a bit faster.Gameplay mechanics wise this would give you an additional (an imho much better) reason to actually put floor tiles underneath your factory.
What do you guys think?
#Edit: reformatted to use the proposed "Standard" Format