As long as the traffic lights actually work — only lighting up one color at a time, signaling green when to indicate it's safe to proceed, and so on — there's no problem.

Dec. 4—WHY ARE ABQ LIGHTS HORIZONTAL?: Coloradan Erin, who visited Albuquerque last week, asks why the traffic lights in Duke City are horizontal rather than vertical. The answer? Nobody knows ...

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.

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.

Tesla is bringing its Green Light Chime feature, which previously was only for people with the Full Self-Driving (FSD) Beta to most of its cars, helping cut down on road rage at traffic lights.

Horizontal traffic lights are common in some parts of the U.S. and can confuse drivers unfamiliar with them. Here’s what you need to know about their meaning and why they're used.