traffic signal

noun

: a signal (such as a traffic light) for controlling traffic

Examples of traffic signal in a Sentence

Recent Examples on the Web

Buses would be electric-powered with on-board batteries and equipped to control traffic signals when necessary for faster rides, Metro reported last year. — Steve Scauzillo, Daily News, 20 July 2026

That includes $10 million for the underpass and about $2 million for a traffic signal at Avimor Drive and several collector roads built during the project’s early phases. — Noah Daly july 17, Idaho Statesman, 17 July 2026

Other work includes upgrading traffic signals, improving sidewalks, curbs and gutters, adding new pavement markings and signs, and making utility adjustments. — Nicole Buss, Sacbee.com, 14 July 2026

These new adaptive traffic systems use real-time sensor data to dynamically adjust traffic signal timing, which minimizes traffic congestion and reduces wait times at signal lights, said City Engineer Tracy Beach. — Julie Gallant, San Diego Union-Tribune, 14 July 2026

Word History

First Known Use

1893, in the meaning defined above

Kids Definition

traffic signal

noun

: a signal (as a traffic light) for controlling traffic