Drive around Sacramento long enough and you’re bound to encounter a sign with a speed limit of 17 miles per hour. Here’s the story behind the signs.

A legal expert has revealed why some speed limit signs have different colours. Green speed limit signs have been popping up across the UK - and are a "grey area". That is according to Daniel ...

The sign alerts drivers to a potential hazard, and if that driver continues to drive at the posted speed limit when that speed is in excess of what’s safe, that’s a violation of the law.

New speed limit signs reduce speed to 20 mph on residential streets 01:58. The City of Denver began installing reduced speed limit signs on neighborhood streets on Tuesday.