Why We Love running tracks (And You Should, Too!)
https://wiki-cafe.win/index.php?title=15_Up-and-Coming_running_surfaces_Bloggers_You_Need_to_Watch
Asphalt - Now you would think that asphalt is just as bad as concrete, but it is not. It's in fact about 8 times "softer". The genuine issue with working on asphalt roadways is not the firmness, but the camber