A SOLUTION BELOW
This seems so basic I’m sure someone has already invented it but if not then someone can make millions developing it (I hope you’ll think of me along the way). “Snow Throwout” is a cover you place on areas such as walkaways that need to be cleaned quickly after (or during) a snow storm. Once that snow has accumulated the cover automatical flips the snow off toward the side. The cover then flips to the clean side and continues the process throughout the day.