These no-slip surfaces are common on docks around here, and especially the ramps leading down to docks.
One comes to really appreciate them when loaded with gear on wet days at low tide.
Hideous though they may be when compared to worn wood with grain standing off the surface a bit, which is what is underneath, they are still a thing of beauty.
This is another image from the roll posted as Up Island at 52Rolls.net.
Olympus XA2, Ilford XP2 Super 400