Originally Posted by
El Julioso
I wrote an article about porous pavement several years ago. It's popular in some parts of Europe. Beneficial for the water supply, reduces run-off, and much higher traction in the rain than non-porous pavement. They also sometimes pave it in a colour-coded manner; I think colour-coded bike lanes would be pretty cool.
I don't know if it is this porous pavement, but they have color coded lanes in some parts of Europe. The bike lanes are either pink or green. The whole lane is that color so you know exactly where you're supposed to be.