The composition of the asphalt mixture making up a road can determine how safe it is for cars to drive on. Tarik Seker/iStock via Getty Images Plus More than 90% of paved roads in the U.S. are made of ...

Editor’s note: This article, distributed by The Associated Press, was originally published on The Conversation website. The Conversation is an independent and nonprofit source of news, analysis and ...

To extend the life of asphalt pavement that’s still performing well, spray-on rejuvenators, also known as rejuvenating seals, are sometimes used. These rejuvenators are designed to improve the ...

A bright orange truck made a few passes along Munger Shaw Road on Friday. It’s called SCRIM, and it’s a road survey machine that tests friction of pavement and surfaces. SCRIM stands for Sideway force ...

When planes land at airports, small amounts of rubber wear off the tires leaving a rubber residue behind on the runway. Rubber build up on the pavement causes a loss of friction that, if allowed to go ...

Testing completed by Ontario's Ministry of Transportation on a stretch of the Red Hill Valley Parkway showed the road's friction levels declined over time, but were still deemed "acceptable." It's a ...

(THE CONVERSATION) More than 90% of paved roads in the U.S. are made of asphalt, which is constructed with nonrenewable materials such as petroleum. One way to make paving more sustainable is to ...