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

Colorado transportation officials say the rollout of a new automated speed camera program is having its intended effect, ...

Getting your Trinity Audio player ready... Driving with a lead foot in Aurora is about to get more costly with the launch of two mobile speed cameras meant to catch people speeding in neighborhoods ...

California is shifting from traditional traffic stops to automated radar systems that can clock a speeding car, capture its ...