Engineers are exploring a future white phase on U.S. traffic lights, showing how autonomous vehicles could coordinate movement at intersections.

Researchers at North Carolina State University (NC State) are advocating for a significant change in traffic management by proposing the addition of a fourth color to traffic lights: white. This new ...

DETROIT – The first tri-color, four-way traffic signal was installed at Woodward Avenue and Fort Street in Detroit in 1920. William Potts, a traffic officer, invented the signal, adding the yellow ...