Roads destroy wilderness. Roads facilitate resource development. They fragment habitat and create artificial edges, eliminating wilderness-dependent and forest interior species. They create erosion and mass slope failures that clog streams. They facilitate air and noise pollution.
Road dust covers plants, reducing photosynthesis.
Road cuts disrupt ground water flow patterns. Road-cuts are road shoulders are avenues for noxious weed invasions. Precipitation evaporates from road pavement instead of percolating into the ground. Roads provide access for slob hunters, poachers, off-road vehicles, and litterbugs. In short, in most situations wildness and roads are mutually exclusive.