Urban mobility problems demand clarity. Intersections remain the most common sites for crashes, congestion, and violations.

Every time we stop at a red light, wait patiently for green, or slow down on yellow, we’re participating in a system that quietly keeps billions of people safe. But have you ever wondered who invented ...

Many of us dread having to go through that poorly timed intersection in our area where the light is red for several minutes, turns green just long enough to let maybe three cars through, then changes ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Urban planners in Vienna, Austria, installed their first smart ...