Civic team went to city hall to apply the permit for test site. In order to show the officers what's the track in test site looks like, I created a model in Sketchup. It should be easy to do it. But I did't know what happened the the CAD document in sketchup was not available. I had to draw the CAD by myself. And Auto-cad crashed at least 8 times. I stayed up until 3 am to finish the model of test site.
Finally, I made it!