Red, Yellow, Green
How Traffic Lights Tamed the Streets and Shaped Modern Cities
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Red, Yellow, Green
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Narrado por:
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Virtual Voice
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De:
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Pierce Jumper
Este título utiliza narración de voz virtual
What if one of the most important inventions in modern history was something we barely notice?
We hurry beneath them. We wait beside them. We watch them change without thinking. Yet traffic lights shape our cities, our commutes, our neighborhoods, and the way we share space with strangers.
In Red, Yellow, Green: How Traffic Lights Tamed the Streets and Shaped Modern Cities, we step into the surprisingly dramatic story of how these three glowing colors came to govern the movement of the world.
Before traffic lights, city streets were unruly and unpredictable. Horses, streetcars, pedestrians, and the rise of the automobile collided—literally—in chaotic intersections. Injury and frustration were common. Cities needed a new kind of order.
That order arrived not through force, but through design.
This book traces the evolution of traffic signals from:
The earliest gas-lit semaphore in 1868 London
To the first electric signals built by police officers in dusty workshops
To the invention of the yellow light in Detroit
To synchronized “green wave” traffic systems
To today’s smart, sensor-driven, AI-coordinated intersections
Along the way, it explores:
The psychology of why we obey (or challenge) signals
Why some cities favor pedestrians and others favor cars
How crosswalks became symbols of dignity and belonging
Why Japan’s “go” signal looks more blue than green
Why some cities remove traffic lights entirely — and the streets become safer
This is not just a book about infrastructure.
It is a book about trust.
Traffic lights work because strangers believe others will follow the same rules. They are everyday evidence that cooperation is possible—even between people who will never meet.
Perfect for readers who enjoy:
City and urban history
Design and architecture
Culture and social psychology
Transportation, planning, or engineering
Curious nonfiction that finds meaning in everyday things
Thoughtful, surprising, and richly human, Red, Yellow, Green reveals how a tiny invention quietly changed the shape of the modern world.