How can you avoid black ice if you can’t see it?

• Keep your eyes open, if the asphalt looks shiny and black instead of grey-white, be cautious.
  Explanation:

  "Black ice is caused by moisture freezing on the road surface. Often, a driver cannot see it. If the asphalt looks shiny and black instead of grey-white, be cautious, and reduce your speed without braking."
• Keep your eyes open, if the asphalt looks dim and red instead of grey-white, be cautious.
• Keep your eyes open, if the asphalt looks dim and bluish instead of grey-white, be cautious.
• Keep your eyes open, if the asphalt looks red instead of grey-white, be cautious.