Traffic lights might seem like they let cars stop or go randomly, but that's not always the case. Many of them use special sensors that detect vehicles.

With an RFID foundation, smart cities can manage traffic with faster feedback loops and more predictable outcomes for daily ...

Econolite, a company part of the Umovity group, has launched something that seems straight out of a futuristic movie: a traffic light that “sees” traffic in real time, adjusts the timing of each ...

Have you ever wondered how traffic lights know when to give you a signal? Reader Nick Shepard asked Bee Curious, a community-driven series in which The Sacramento Bee’s service journalism team answers ...