Does anyone know of a good resource for checking the safe flying parameters of a given area? I know of skyvector, which is for flight planning ie class B, Class E zones and their given flight floors. However im more concerned with lower flying traffic, such as medivac, news helicopters or other low flying craft. I have seen some individuals stating they have flown to 1000 feet or higher, and wondering what precautions they took. If you have your drone at 1000 feet and a medivac or new chopper comes in the area, a collision is possible. Is there a place to check on these things? Thanks!