Typically, the doc explains, a yellow light is preset to run for a tenth of the posted speed limit. In cases where the speed limit is less than 30 mph, though, you can still expect a three-second ...

The traffic lights and crosswalk signals at an intersection are only ... to determine if preemption is required. No matter what color hacker hat you wear, thoughts can’t help but turn dark ...

Noboru Mochizuki, 65, a blind acupuncturist who downloaded the smartphone app for traffic signals ... a traffic light equipped with the system via Bluetooth telling them what color a light ...