Hopefully you can see my site plan I've attached. It should be in my profile as well. This is a design for a 2 long narrow apartment buildings in northern Wisconsin separated by a 30' wide driveway. The curved part is a 7% grade, the straight part is 3% grade down to retention pond. Business partner doesn't want to move the 3 visitor parking spots to the north or south, says plow guys are used to cars in there way. Business partner doesn't want to install driveway heat on steep part, says to expensive. My concerns are I don't want to have to have plow guy (yet to be hired) come out multiple times cause tenants get stuck on the steep curvy part, and I don't want to have to tell tenants they can't park in the 3 visitor spots during snow (cause people will park there anyways). Thoughts? Questions? I want to heat steep part (2, 3' wide sections just for tires) and move parking spots on east side. Way too expensive to do electric heat the whole driveway. Salt/sand doesn't do that well of a job in subzero temps right, on steep grade?