I was driving home from work one evening at twilight along a road with a lot of construction hazards. They were widening the highway and subsequently modifying a few access roads as well. I turned onto one of these roads and was changing a tape in the cassette player when I looked up and was startled to see a man in an orange vest and hard hat holding a stop sign in the middle of the road. I swerved sharply to avoid him and pulled over to the side of the road, scared half out of my wits. I turned around to apologize, and he was gone. The road was completely deserted save a large concrete barrier in front of the lane I was headed into. Had I continued straight, I surely would have crashed and died, since I wasn't wearing a seatbelt. I said a quick thank you and continued home, eyes glued to the road! .