In a post to X, formerly Twitter, the weather service said patchy black ice ... it becomes ice," said Ahmed Abohassan, a traffic safety data analyst in Edmonton, Alberta in Canada whose thesis ...

Alberta in Canada whose thesis was on winter driving dangers and pavement friction. Bridges are especially dangerous because air currents above and below make them cooler than roads on solid ground, ...

Black ice is a well-known weather slang term for patchy ice that cannot be seen on roadways or other surfaces. In its typical form, black ice is completely transparent, only called "black" because ...