(WHTM) — We see traffic lights all the time. Sometimes we get green lights, and sometimes we hit all the red lights on our commute to work. But, while sitting at a red light, have you ever wo… ...

The yellow light didn’t enter the scene until the 1920s. William Potts, who was a police officer in Detroit, is credited with designing the first three- and four-way colored traffic lights.

Smarter vehicles could mean some of the most dramatic changes for the traditional traffic signal since the yellow light was added more than a century ago. (Jeremy Little/University of Michigan ...

Smarter vehicles could mean some of the most dramatic changes for the traditional traffic signal since the yellow light was added more than a century ago As cars and trucks get smarter and more ...

The first traffic signals were not red, yellow and green. ... Red light penetrates best. By the 1860s traffic conditions in London prompted officials to seek a way of controlling horse-drawn ...

The yellow light didn’t enter the scene until the 1920s. William Potts, who was a police officer in Detroit, is credited with designing the first three- and four-way colored traffic lights.

Why the traffic light colors were chosen . There are a few reasons why the colors red, yellow and green were chosen for traffic lights. Red is an obvious choice.

Smarter vehicles could mean some of the most dramatic changes for the traditional traffic signal since the yellow light was added more than a century ago. (Jeremy Little/University of Michigan ...

Researchers are exploring ways to use features in modern cars, such as GPS, to make traffic safer and more efficient. Eventually, the upgrades could do away entirely with the red, ...

The yellow light didn’t enter the scene until the 1920s. William Potts, who was a police officer in Detroit, is credited with designing the first three- and four-way colored traffic lights.

Researchers are exploring ways to use features in modern cars, such as GPS, to make traffic safer and more efficient. Eventually, the upgrades could do away entirely with the red, yellow and green … ...