Originally Posted by Serge *******
I'll have to take your word for it, but it's hard to understand. On every busy road I can think of, the half-life for debris presence on and about the part of the roadway where cars travel can be measured in minutes. Between the left and right tracks, and for a few feet to either side, the roadway is constantly swept clean.
Part of the problem on this particular road is that it also leads to the local county dump (landfill and transfer station). Lots of trucks with who knows what in them including agricultural debris. Other roads similarly laid out have not been as bad as this one. They tend to be swept clean as you mentioned.