A mirror hangs under the grunlicht to show truck drivers the blind spot next to their vehicle. Hundreds of cyclists are killed every year in germany because drivers of cars, trucks and buses fail to see them when they turn off the road.
The cause of these accidents may have been the blind spot, suspects the north rhine-westphalian interior ministry. Munster tests the new reflector traffic light at two locations for the time being. The system is already being used successfully in the netherlands.