ELI5 Traffic Lights - why not use pressure sensors?
ELI5 Explain Like I'm 5: Bite sized answers to stuff you should know about - in a mini podcastShow Notes
How intelligent are traffic light systems? What sensors are used? Why not use pressure sensors under the pavement? How do traffic systems coordinate across intersections in a city? Do emergency services like fire trucks and ambulances have the ability to control traffic signals?
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