For the past few years, the cash-strapped village of Dörentrup in central Germany has been switching off all the streetlights from 11 p.m. until 6 a.m. the following morning — but now they have Dial4Light:
In the first project of its kind in Europe, the residents of Dörentrup can now switch on the lights on a specific street whenever they like. All they have to do is register for the scheme online and provide a phone number. Then each time anyone needs to see in the dark, they call the Dial4Light number, enter the six-digit code that corresponds to the stretch of road they want lit, and within seconds the lights are on. They’ll stay on for around 15 minutes, enough time for someone to walk from one end of the average Dörentrup road to the other.
[...]
“We found out that on each stretch of road, people only switch on the lights up to three times each night,” explains Frank Bräuer, project leader at Lemgo. “That’s why this system works in villages or the outskirts of a town where residents don’t need the lights burning all night.” But Dial4Light won’t work for everyone, he admits: “It wouldn’t be suitable for a big city like New York or London, where there’s a lot going on at night.”