Charlotte gives green light to flashing yellow arrow
Since 1997, engineers in Charlotte, NC, worried that too many motorists were confusing a green ball as permission to make a protected left turn. In response, Charlotte, NC will earn the distinction of being one of the first localities to implement traffic light phasing that include a flashing yellow turn arrow. According to the Charlotte Observer, “The new light replaces the green ball for left turns with a flashing yellow arrow to signal that motorists must yield.”