Traffic signals
The use of traffic signals is fundamental to the smooth and safe operation of our road network.
Here you’ll learn about traffic signals throughout history, our existing intelligent transport system and everything in between.
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Learn about the history of traffic signals and how they’ve evolved.
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Discover the different mechanisms that make up traffic signals and how they work.
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Discover how signal coordination along a road minimises stops and delays.
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Find out how the Sydney Coordinated Adaptive Traffic System (SCATS) improves traffic flow and safety for all road users.
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Discover how we assist with integrating and prioritising sustainable transport modes.
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Find out what we do behind the scenes and how to get in touch.
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Find out who’s responsible for traffic signal maintenance and how to report a fault.
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Get the answers to our frequently asked questions and learn more about traffic signals with our further reading options.