Red, amber, green – traffic lights are pretty much the same the world over, and have been for more than a century. However, they could one day have a fourth colour added to help traffic flow ...

Traffic light signals which operate in almost every country around the globe are one of them. They are not debatable whether driving is on the left or the right. They bring clarity and order to ...

The amber light used on modern traffic lights was not introduced until 1921 when inventor William Potts brought the three-colour traffic light to Detroit.

For many motorists, the amber traffic signal is more a challenge than a warning: instead of slowing down, they speed up, trying to beat the light before it changes. It is a hazardous practice ...

If you're comfortable with the present green, amber, and red traffic lights, be prepared to get uncomfortable. New research suggests that adding a white light will speed up traffic and improve ...

Japanese traffic lights are blue instead of the green Americans know, but the reasoning involves some complex linguistic ...

Traffic lights may change one day (Picture: Getty/iStockphoto) Red, amber, green – traffic lights are pretty much the same the world over, and have been for more than a century. However, they ...

PEOPLE are only now realising why traffic lights are red, amber and green – and it’s not down to what you might think.The colours, which appear on. Jump directly to the content.

The yellow light would not come into play until the 1920s. William Potts, who was a police officer in Detroit, is credited for designing the first three and four-way colored traffic lights.

When and if driverless cars become much more common, the green, amber and red traffic lights that we already know may be getting a white sibling. Depositphotos. View 1 Image 1 / 1.