What are dirt tracks and how do they vary?
While I am not sure of the composition they are a sandy-based material. They are reasonably consistent from one track to the next. What effects them is the weather, and what the maintenance crew decides to do with the track in terms of harrowing the track (typical if the weather cooperates) or roll the track (when sealing due to inclement weather). The maintenance crew can also determine how deep to harrow the track. Tracks are usually harrowed at least once, and often twice during training hours, and between each race.
