W hen you hop in your car to head to work, drop your kids off at school or make a Target run, how many traffic lights do you ...

Switching to energy-efficient LEDs and using tech to program when and how street lighting operates can save cities millions ...

Innovative pre-emption technology helps them save that minute and a half by turning every traffic light green. "Oftentimes, the big red truck comes behind people, lights and sirens are blaring.

Some decisions, like choosing when to cross a busy street or stepping aside to avoid ... process conflicting information quickly, like a green light signaling "go" and a speeding car signaling ...