A city in South Korea, which has the world's highest smartphone penetration rate, has installed flickering lights and laser beams at a road crossing to warn "smartphone zombies" to look up and drivers to slow down, in the hope of preventing accidents.
The designers of the system were prompted by growing worry that more pedestrians glued to their phones will become casualties in a country that already has some of the highest road fatality and injury rates among developed countries.
State-run Korea Institute of Civil Engineering and Building Technology (KICT) believes its system of flickering lights at zebra crossings can warn both pedestrians and drivers.