You can't really say that. Paving a road increases its allowable traffic load. Before the county will allow you to build higher density housing. I don't know it's the case, but if that guy wanted to subdivide and sell off a portion of his land for housing, the first step would have to be getting approval from the county for an increased traffic load.Not to mention that it's a short dead end residential road so paving it would have no effect on traffic.
Developers have been trying to widen, straighten, and pave roads out that way for almost 20 years so they can put in more houses.
Ferentz even showed up at county meetings in the past to oppose putting in more roads by his house and destroying the rural character.
Anyway, more traffic is obviously more dangerous for everyone. Especially kids on bikes.