Hammerhead Dad said:
This generation of turf is much different than the original turf that did cause a lot of injuries. I don't believe there is a significant difference now.
the original astroturf was essentially a cheap carpet laid on a concrete base, no padding at all, hence many injuries and the original turf toe. as for the heat factor, schedule non hornet events in the morning hours, and hornet games in the night at the beginning of the season.
the only track event that could potentially damage the field is the javelin, which i don't believe would since you're throwing it into a deep sand/rubber substrate. plus, the majority of track meet officials really don't like the javelin thrown like you see in the olympics-thrown from one end of the field to the other. every other event has to kinda shut down, watch and wait. most people running meets like to throw the javelin (and shot and discus) outside the track confines, because they may only have a one day meet.