We can't give a green light to color-coded food-nutrition labels when the public is still trying to figure out the shades of meaning in the terrorist-threat-level system. Maybe a "traffic light" theme ...

A new study shows that labeling food choices in a hospital cafeteria with simple 'traffic-light' symbols indicating their relative health value was associated with a reduction in calories purchased by ...

Navigation apps already know where stop signs and traffic lights are located, mainly because vehicles on the road stop in front of them. These applications collect traffic data that help them ...