A Brief History of the Stoplight, Innovation

How a bright idea shaped our cities and gave the go-ahead to our love affair with the car

Traffic light - Wikipedia

The future of traffic lights - The Hustle

In the Way of Traffic

The Accidental Invention: How the Traffic Light Came to Be

Traffic Signal Management Plans: Chapter 1. Purpose of this Guidebook - FHWA Office of Operations

History of traffic lights - Wikipedia

Who Invented The Traffic Light?

School zone safety: New smart light stops speeding motorists

Signaworks LED 2 Light Red/Green LED Loading Dock Bay Traffic Light 4 inch Diameter Lens, 110/220 VAC, Mounting Brackets, Industrial Stop Go Light, Ready to Wire (Power Cord and Controls NOT

This Day in Patent History - On November 20, 1923, a patent was granted to Garrett Morgan for a traffic signal - Patent Yogi LLC

100 Years of the traffic light

Traffic-light hacking in three versions of The Italian Job

A Brief History Of Traffic Lights