The luminescent bike path
In Poland, near Lidzbark Warminski, a new bike path was created that get bright at night after being charged by the sun during the day.
The company who created the path tried to be as cost effective as possible, as the materials are more expensive than the materials used in tradicional bikelanes. The luminescente material of the lane is based on phosphor, and can make the floor emit different colors and the project team did choose blue because it better matches the environment around the bike lane.
The main reason for the luminescent bike lane is to make biking at night safer.