Traffic signs have to communicate crucial information quickly and simply, to anyone who might be on the road. They use letters and numbers to lay out information in plain language but they also use ...

Roadway markers are the bedrock of traffic engineering systems. Painted lines, directional signs, coloured lights, arrows and reflective barriers give drivers the information they need to follow the ...

US Route 20 starts in Boston, Massachusetts, and ends in Newport, Oregon. It's America's longest highway, measuring approximately 3,365 miles. However, nobody needs to drive for almost four days to ...

Instead of displaying traveling times for getting through downtown Seattle, a sign overhead Aurora Avenue North on a recent morning commute displayed a secret, cryptic code — “*”. Just kidding: The ...