Next Nature Network (Amsterdam), Oct. 4, 2016, by Monika Kozub.
https://www.nextnature.net/2016/10/luminous-bike-lane-opened-poland/

"TPA Instytut Badan Technicznych in Pruszkow designed the first luminous bike lane, that opened last week near Lidzbark Warminski in the Mazury region. 'The material we used for the track gives light for over ten hours. That means the road can radiate throughout the whole night and reaccumulate light the following day' Igor Ruttmar from TPA says."