We have a project that is directly at an international airport. The area is actually very densely occupied, but if we have to include all site areas, which are used to taxi the plans or load and unload passengers, we end up having a density that is to low. We think, we could consider them as somewhere similar to "public road ways". My question is can we exclude this areas form the calculation? Did anyone had a project that had this kind of situation? Also we obviously can't use option 2, because residential areas aren't allowed so close to an airport (German urban planing law).