One lane road

By driving for county transportation I drive down any road that the bus will fit and up any driveway that the bus will fit. When I say the bus will fit I mean the mirrors are not hitting trees and there are no underpasses too low to permit me from traveling down the road.
I was on these back roads that the bus is amost the width of the road this week. That to me is a one lane road. However while driving down one of these roads, and take note when I say back road I mean little dirt road, I encountered a sign that said One Lane Road Ahead. What is this? The bus just fits on the road, it is a one lane road do you actually mean this road is going to get smaller? I am already hoping not to encounter any oncoming traffic! Needless to say they were working on the road and the construction barrels took about a foot and a half off of the width of the road. They then classified it as a one lane road!
The worst part is that the first time I went down these roads I made a wrong turn onto the wrong dirt road. Some of my passengers can give directions and some cannot. They told me to make a left at the Y so I made a left. A little down the road I heard them say Uh-oh! Not what I wanted to hear, it's not like I can turn around any where any time soon! However I made it out of there and got everybody home safely.