This happened about an hours drive north of me. I have driven that road, many many times. While it is the main highway through the valley, busy is a relative term. For the area, it is busy, compared to a city street, not so much. It is two lanes each direction with a turn lane in the middle. It is also long, straight and wide open, so if he had chosen to land on the road, people should have seen him coming, not like he was going to just pop out in front of them from behind a hill, building or trees. Granted some people drive with the head in their ass, but still. The screen shot from above is about 10 - 12 miles from the airport, but like another poster pointed out, lots of small roads and plenty of wide open space to divert to next to the road had there been obstructions he spotted on short final. Glad everyone was OK.