I just always wondered how they setup regular roads for street course races. Does anyone have the answer to this? I mean they do these races in large cities and the roads have to be full of tire debris and skid marks once the race is done. Do they have machines that clean all this stuff up? Are the businesses around compensated due to local roads being closed for multiple days due to the race? What really got me thinking about this again was when I was driving home today I took some back roads and just thought how great it would be to just race the route I drove without having to worry about traffic or lights.