Pull up to an intersection at a red light, eyes ahead, scanning left and right. Maybe the blue light from the traffic signal caught your eyes, like it did for Bob Thompson of Mill Creek. “What is the ...

Some things are so ubiquitous that it's easy to forget they're designed for a reason. With more than 300,000 traffic lights set up across the United States, it's easy to take how they look for granted ...

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Many red lights fail to detect smaller vehicles like bikes and scooters due to sensor limitations. Inductive loops, common in traffic signals, rely on sufficient metal mass to register a vehicle.