What is the history of traffic signals?
An example of an AI chatbot conversation about the evolution of traffic signals over time.
Can you tell me about the history of traffic signals?
Sure! The first traffic signal was installed in London in 1868, using gas lights to control traffic.
How did traffic signals evolve over the years?
Traffic signals evolved from gas lights to electric signals in the early 20th century, improving visibility and safety.
What are the different types of traffic signals used today?
Today, we have various types of traffic signals, including standard traffic lights, pedestrian signals, and smart traffic systems.
When were the first electric traffic signals introduced?
The first electric traffic signals were introduced in 1912 in Salt Lake City, Utah.
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