Evening cyclists near the Polish town of Lidzbark Warminskihad one reason fewer to be blue on Sept 30, a week after a glow-in-the-dark bicycle lane was opened to the public.
The innovative bike lane is made of light-emitting materials called luminophores. These charge in the sun and can glow for up to 10 hours in the dark.
The technology was created by engineering company TPA Sp. z o.o to help prevent accidents between pedestrians and cyclists.
As the company's president Igor Ruttmar noted, such accidents are very common, especially at night.
They are also a major problem in rural areas, which tend to be darker than the city.
The lane is still being tested and will be closely monitored to see how it fares in different weather conditions and temperatures.