I'm having trouble understanding the point of that. "Hmm. The fire and police departments are slow this time of year, what can we, the DOT do to help. Ooo, I know! Let's put oil AND loose gravel on the roads and see what happens."
I do remember the roads in my neighborhood being tar and gravel when I was a kid. I still have a scar on my knee from my first trip down the hill on a bicycle that was too big for me.