running surfaces: 10 Things I Wish I'd Known Earlier
https://wiki-net.win/index.php?title=7_Answers_to_the_Most_Frequently_Asked_Questions_About_athletics_track
Asphalt - Now you would believe that asphalt is just as bad as concrete, however it is not. It's actually about 8 times "softer". The real issue with working on asphalt roadways is not the firmness, however the